U.S. patent application number 12/742513 was filed with the patent office on 2010-10-07 for composite container.
This patent application is currently assigned to Du Pont-Mitsui Polychemicals Co., Ltd.. Invention is credited to Kazuyuki Oogi, Masanobu Sato, Sadaki Yamamoto.
Application Number | 20100252477 12/742513 |
Document ID | / |
Family ID | 40638714 |
Filed Date | 2010-10-07 |
United States Patent
Application |
20100252477 |
Kind Code |
A1 |
Yamamoto; Sadaki ; et
al. |
October 7, 2010 |
COMPOSITE CONTAINER
Abstract
[Problem] It is an object to provide a composite container in
which a shape and a profile of a resin hollow molding body can be
discriminated with clarity in the case in which a visual contact is
carried out to the inside resin hollow molding body via an outside
transparent resin sheathing body, whereby a design property can be
displayed to a satisfactory extent, and in which a design property
can be displayed to a satisfactory extent even by a combination of
the resin hollow molding body and the outside transparent resin
sheathing body. [Means for Resolution] A composite container
comprises a hollow molding body (a) made of a resin having a hollow
inside and a highly transparent resin sheathing body (b) that has
been integrated with an outside of the hollow molding body (a),
wherein as a thickness of the highly transparent resin sheathing
body (b) for a cross section in a horizontal direction getting
across the hollow molding body (a) and the highly transparent resin
sheathing body (b) at the major portion of the composite container,
a minimum thickness (X) of the highly transparent resin sheathing
body (b) is at least 0.1 mm and a difference of a maximum thickness
(Y) and the minimum thickness (X) is at least 2 mm.
Inventors: |
Yamamoto; Sadaki;
(Ichihara-shi, JP) ; Oogi; Kazuyuki;
(Ichihara-shi, JP) ; Sato; Masanobu;
(Ichihara-shi, JP) |
Correspondence
Address: |
Rankin, Hill & Clark LLP
23755 Lorain Road, Suite 200
North Olmsted
OH
44070
US
|
Assignee: |
Du Pont-Mitsui Polychemicals Co.,
Ltd.
Minato-ku, Tokyo
JP
|
Family ID: |
40638714 |
Appl. No.: |
12/742513 |
Filed: |
November 11, 2008 |
PCT Filed: |
November 11, 2008 |
PCT NO: |
PCT/JP2008/070504 |
371 Date: |
May 12, 2010 |
Current U.S.
Class: |
206/524.6 |
Current CPC
Class: |
B65D 1/40 20130101; B65D
23/0821 20130101; B65D 1/0207 20130101 |
Class at
Publication: |
206/524.6 |
International
Class: |
B65D 85/00 20060101
B65D085/00 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 13, 2007 |
JP |
2007-294891 |
Claims
1. A composite container comprising a hollow molding body (a) made
of a resin having a hollow inside and a highly transparent resin
sheathing body (b) that has been integrated with an outside of the
hollow molding body (a), wherein as a thickness of the highly
transparent resin sheathing body (b) for a cross section in a
horizontal direction getting across the hollow molding body (a) and
the highly transparent resin sheathing body (b) at the major
portion of the composite container, a minimum thickness (X) of the
highly transparent resin sheathing body (b) is at least 0.1 mm and
a difference of a maximum thickness (Y) and the minimum thickness
(X) is at least 2 mm.
2. The composite container as defined in claim 1, wherein a shape
of the hollow molding body (a) and that of the highly transparent
resin sheathing body (b) are different from each other.
3. The composite container as defined in claim 1 or 2, wherein the
highly transparent resin sheathing body (b) is made of a highly
transparent synthetic resin having a total ray transmittance
(conforming to JIS K7105, and measured with a sheet having a
thickness of 1 mm) of at least 80%.
4. The composite container as defined in claim 3, wherein the
highly transparent synthetic resin is an ionomer of an ethylene
(meta) acrylate copolymer.
Description
TECHNICAL FIELD
[0001] The present invention relates to a composite container for
holding a powdered material or a liquid material having a flow
property such as a cosmetic solution, a chemical, and a beverage.
More specifically, the present invention relates to a composite
container of which an outside layer is made of a resin.
BACKGROUND ART
[0002] As a container for holding a liquid material such as a
cosmetic solution, a chemical, and a beverage, a container with a
cap having an excellent corrosion resistance and a satisfactory
airtight property has been widely used. The container is made of a
glass in general. In some cases however, a container made of a
synthetic resin can also be used to obtain similar effects.
[0003] The glass container has a dignity sense and a high quality
sense, and is transparent whereby a condition inside the container
is visible with the naked eye. Consequently, the glass container
can be preferably used as a container of a cosmetic solution in
particular. However in some cases, the glass container may be
easily damaged by a shock during a carrying operation or by a drop
in use. In many cases, the glass container has a simple shape,
thereby being lack in a poor decorative property
disadvantageously.
[0004] On the other hand, a container made of a synthetic resin is
lack in a dignity sense and it is hard to project a high quality
sense.
[0005] Although a container made of a metal is also known, the
metal container is an opaque whereby a condition inside the
container is invisible with the naked eye. Consequently, a use
application of the metal container is restricted.
[0006] Therefore, Patent document 1 proposes a composite container
in which a resin is over-molded on the outside surface of a
container made of a glass and at least one of the inside and the
outside of the container is formed by a transparent body in order
to improve a design property.
Patent document 1: Japanese Unexamined Patent Application
Publication No. 2004-527424
DISCLOSURE OF THE INVENTION
Problems to be Solved by the Invention
[0007] Even for a container in which a hollow body inside is made
of a glass among such conventional composite containers, a damage
caused by a drop cannot be prevented in many cases. In the case in
which a visual contact is carried out to an inside hollow body made
of a glass via a resin sheathing body made of an outside molded
transparent body, a shape and a profile of the inside hollow body
made of a glass cannot be discriminated to a satisfactory extent,
and a design property cannot be displayed to a satisfactory
extent.
[0008] For a conventional composite container, an inside hollow
body is visible via a transparent resin sheathing body, and the
inside hollow body and the outside resin sheathing body are in
different shapes. Consequently, the conventional composite
container has a design property caused by a combination of the two
shapes. However, since the inside hollow body cannot be
discriminated to a satisfactory extent, the design property caused
by the combination cannot be displayed to a satisfactory
extent.
[0009] The present invention was made in consideration of such
conditions, and an object of the present invention is to provide a
composite container in which a shape and a profile of a resin
hollow molding body can be discriminated with clarity in the case
in which a visual contact is carried out to the inside resin hollow
molding body via an outside transparent resin sheathing body,
whereby a design property due to the resin hollow molding body can
be displayed to a satisfactory extent, and a design property caused
by a combination of the resin hollow molding body and the outside
transparent resin sheathing body can be displayed to a satisfactory
extent.
Means for Solving the Problems
[0010] The present invention was made in order to solve the above
problems of the conventional art. A composite container in
accordance with the present invention is characterized by
comprising a hollow molding body (a) made of a resin having a
hollow inside (hereafter simply referred to as a resin hollow
molding body (a) in some cases) and a highly transparent resin
sheathing body (b) that has been integrated with an outside of the
resin hollow molding body (a) (hereafter simply referred to as a
resin sheathing body (b) in some cases), wherein as a thickness of
the highly transparent resin sheathing body (b) for a cross section
in a horizontal direction getting across the hollow molding body
(a) and the highly transparent resin sheathing body (b) at the
major portion of the composite container, a minimum thickness (X)
of the highly transparent resin sheathing body (b) is at least 0.1
mm and a difference of a maximum thickness (Y) and the minimum
thickness (X) is at least 2 mm.
[0011] By using a highly transparent synthetic resin for the resin
sheathing body in the composite container having the above
described configuration, a shape and a profile of the resin hollow
molding body (a) is clearly visible via the resin sheathing body
(b) and a high quality sense can be projected. In addition, in the
case in which a visual contact is carried out to the total shape
and profile even if they are not clear, an aesthetic appreciation
and an appearance property can be improved.
[0012] For the composite container in accordance with the present
invention, it is preferable that a shape of the resin hollow
molding body (a) and that of the highly transparent resin sheathing
body (b) are different from each other.
[0013] By the above described configuration, in the case in which a
visual contact is carried out to the inside from a thin wall part
of the highly transparent resin sheathing body (b), a contrast can
be improved as a whole, whereby the resin hollow molding body (a)
can be discriminated with clarity from the outside.
[0014] For the composite container in accordance with the present
invention, it is preferable that the highly transparent resin
sheathing body (b) is made of a highly transparent synthetic resin
having a total ray transmittance (conforming to JIS K7105, and
measured with a sheet having a thickness of 1 mm) of at least
80%.
[0015] By using a highly transparent synthetic resin as the highly
transparent resin sheathing body (b) in the composite container
having the above described configuration, a high quality sense can
be further projected due to a synergistic effect of the highly
transparent resin sheathing body (b) and the resin hollow molding
body (a). In addition, an aesthetic appreciation and an appearance
property can be further improved.
[0016] For the composite container in accordance with the present
invention, it is preferable that the highly transparent synthetic
resin is an ionomer of an ethylene (meta) acrylate copolymer.
[0017] By using a highly transparent synthetic resin in the
composite container having the above described configuration, a
satisfactory thick-walled molding can be carried out. In addition,
a dignity sense of a glass can be obtained, thereby bringing about
a high quality sense. Moreover, the composite container can be
formed at a low cost.
EFFECT OF THE INVENTION
[0018] For the present invention, by making a thickness of a highly
transparent resin sheathing body (b) that has been integrated with
a resin hollow molding body (a) to be a prescribed thickness, a
shape and a profile of the resin hollow molding body (a) can be
discriminated with clarity in the case in which a visual contact is
carried out to the inside resin hollow molding body via the outside
transparent resin sheathing body, whereby a design property can be
improved. Moreover, a complicated shape can be adopted since a core
part is made of a resin, a satisfactory decorating property can be
displayed. Furthermore, a design property can be displayed to a
satisfactory extent even by a combination of the two shapes, and
the composite container is hardly damaged.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] FIG. 1 is a perspective view showing a composite container
in accordance with an embodiment of the present invention.
[0020] FIG. 2(A) is a cross-sectional view in a longitudinal
direction for the composite container shown in FIG. 1, and FIG.
2(B) is a cross-sectional view in a direction along the line C-C of
FIG. 1(A).
[0021] FIG. 3 is an elevation view showing a composite container in
accordance with another embodiment of the present invention.
[0022] FIG. 4 is a cross-sectional view in a horizontal direction
for the composite container shown in FIG. 3.
[0023] FIG. 5 is a cross-sectional view in a horizontal direction
for a composite container in accordance with another embodiment of
the present invention.
[0024] FIG. 6 is a cross-sectional view in a horizontal direction
for a composite container in accordance with another embodiment of
the present invention.
[0025] FIG. 7 is a cross-sectional view in a horizontal direction
for a composite container in accordance with another embodiment of
the present invention.
[0026] FIG. 8 is a cross-sectional view in a horizontal direction
for a composite container in accordance with another embodiment of
the present invention.
EXPLANATIONS OF LETTERS OR NUMERALS
[0027] A, B, C, D, E, and F: Composite containers [0028] a: Hollow
molding body made of a resin (resin hollow molding body) [0029] b:
Highly transparent resin sheathing body (resin sheathing body)
[0030] 14: Opening portion [0031] 18: Cap member
BEST MODE OF CARRYING OUT THE INVENTION
[0032] An embodiment (example) of the present invention will be
described below in detail with reference to the drawings.
[0033] FIG. 1 is a perspective view showing a composite container
in accordance with an embodiment of the present invention. FIG.
2(A) is a cross-sectional view in a longitudinal direction for the
composite container shown in FIG. 1, and FIG. 2(B) is a
cross-sectional view in a direction along the line C-C of FIG.
2(A).
[0034] A composite container (A) is used for holding a liquid
material having a flow property such as a cosmetic solution, a
chemical, and a beverage.
[0035] As shown in FIG. 1, the composite container (A) is composed
of a hollow molding body (inner bottle) (a) made of a resin
provided with an opening portion 14 that is an inlet or an outlet
for a content and a highly transparent resin sheathing body (b)
formed in such a manner that an outside of the resin hollow molding
body (a) is covered in an integrating manner with the highly
transparent resin sheathing body. More specifically, the composite
container A in accordance with the present invention is formed by
over-molding the highly transparent resin sheathing body (b) on the
outer circumferential side of the hollow molding body (a) made of a
resin. The hollow molding body (inner bottle) (a) a made of a resin
provided with the opening portion 14 can hold a powdered material
or a liquid material having a flow property such as a cosmetic
solution, a chemical, and a beverage.
[0036] In the present embodiment, while the resin hollow molding
body (a) is formed inside in a generally cylindrical shape, the
highly transparent resin sheathing body (b) is formed outside in a
spherical shape formed in such a manner that triangle are combined
in a multifaceted fashion. In other words, a shape of the inside
hollow molding body (a) and that of the highly transparent resin
sheathing body (b) are different from each other, and the inside
hollow molding body (a) and the highly transparent resin sheathing
body (b) are combined.
[0037] A cap member 18 is attached to the opening portion 14 of the
resin hollow molding body (a) to seal the opening portion 14,
thereby preventing a liquid material or a powdered material from
coming into contact with an ambient air or from scattering
externally out of the opening portion 14 and preventing a grit and
dust from entering the opening portion 14. In this embodiment, the
opening portion 14 and the cap member 18 are screwed and jointed to
each other. However, the present invention is not restricted to
such a configuration. For instance, the cap member 18 can also be
fitted into the opening portion 14 in an inserting manner.
[0038] Moreover, as a liquid material that is held in the composite
container (A), there can be mentioned for instance a powdered
material and a liquid material having a flow property such as a
cosmetic solution, a chemical, and a beverage. In the present
invention, the liquid material includes a pasty material.
[0039] As shown in FIG. 2(A), for such a composite container (A)
that holds the above contents, the resin sheathing body (b) covers
the entire of the lower side of the opening portion 14 of the
hollow molding body (a) made of a resin.
[0040] As shown in FIG. 2(B), as a thickness of the highly
transparent resin sheathing body (b) for the composite container
(A) in accordance with the present invention, for a cross section
in a direction along the C-C line getting across the resin hollow
molding body (a) and the highly transparent resin sheathing body
(b) at the major portion of the composite container (A), it is
preferable that a minimum thickness (X) of the highly transparent
resin sheathing body (b) is at least 0.1 mm and a difference of a
maximum thickness (Y) and the minimum thickness (X) of the highly
transparent resin sheathing body (b) is at least 2 mm.
[0041] Here, the "major portion" of the composite container (A)
represents the main body of the composite container (A) (an area in
which the dimensions and a shape of the highly transparent resin
sheathing body (b) are kept almost constant in a cross section in a
horizontal direction for the composite container (A)) like a center
part of the container in a vertical direction of the composite
container (A) in a cylindrical shape or in a prismatic shape for
instance, and an area other than sections around the opening
portion 14 and the bottom face of the composite container (A). More
specifically, the "major portion" of the composite container (A)
represents an area as shown in FIG. 2(B) for a cross section in a
direction along the C-C line shown in FIG. 2(A).
[0042] In the case in which a resin thickness of the highly
transparent resin sheathing body (b) is specified at the major
portion of the composite container (A) as described above, a
contrast appears with clarity due to a difference of a resin thin
part and a resin thick part in the case in which a visual contact
is carried out to the inside. Moreover, it is preferable that a
thickness increases by slow degrees from the minimum thickness (X)
to the maximum thickness (Y).
[0043] For such a composite container (A), it is preferable to use
a highly transparent synthetic resin as a material of the highly
transparent resin sheathing body (b). It is more preferable to use
a synthetic resin having a total ray transmittance (conforming to
JIS K7105, and measured with a sheet having a thickness of 1 mm) in
the range of 80% to 100%, more preferably in the range of 85% to
100%.
[0044] As a material of a highly transparent synthetic resin that
satisfies the above range of a transmittance, an ionomer resin, an
acrylic resin, a polyester resin, and styrene resins (such as a
styrene acrylonitrile copolymer resin and a styrene
methylmethacrylate copolymer resin) can be used. Preferably, an
ionomer resin and a polyester resin can be used. More preferably,
an ionomer resin can be used.
[0045] As an ionomer resin, a carboxyl group of an ethylene
unsaturated carboxylic acid copolymer containing unsaturated
carboxylic acid of 1 to 40 weight % can be used for instance. At
least part (generally more than 0 mol % and up to 100 mol %,
preferably up to 90 mol %) of the carboxyl group is neutralized by
metal ions.
[0046] An ethylene unsaturated carboxylic acid copolymer that is a
base polymer of an ionomer resin can be obtained by copolymerizing
ethylene, unsaturated carboxylic acid, and any other polar
monomers. As unsaturated carboxylic acid, acrylic acid, methacrylic
acid, fumaric acid, maleic acid, anhydrous maleic acid, monomethyl
maleate, and monoethyl maleate can be mentioned. In particular,
methacrylic acid is preferable.
[0047] As a polar monomer that can be a copolymer component, vinyl
ester such as vinyl acetate and vinyl propionate, unsaturated
carboxylic acid ester such as methyl acrylate, ethyl acrylate,
isopropyl acrylate, n-butyl acrylate, isobutyl acrylate, n-hexyl
acrylate, iso-octyl acrylate, methyl methacrylate, dimethyl
maleate, and diethyl maleate, and carbon monoxide can be mentioned
as one chooses. In particular, unsaturated carboxylic acid ester is
a suitable copolymer component.
[0048] The metal ion is having a valence of monovalence, bivalence,
or trivalence, in particular, having a valence of monovalence,
bivalence, or trivalence of the groups IA, IIA, IIIA, IVA, and VIII
in the element periodic law. More specifically, there can be
mentioned Na.sup.+, K.sup.+, Li.sup.+, Cs.sup.+, Ag.sup.+,
Hg.sup.+, Cu.sup.+, Be.sup.++, Mg.sup.++, Ca.sup.++, Sr.sup.++,
Ba.sup.++, Cu.sup.++, Cd.sup.++, Hg.sup.++, Sn.sup.++, Pb.sup.++,
Fe.sup.++, Co.sup.++, Ni.sup.++, Zn.sup.++, Al.sup.+++, Sc.sup.+++,
Fe.sup.+++, and Y.sup.+++.
[0049] The above materials are excellent in a transparency, a shock
resistance, and a mar-proof property. In addition, a thick-walled
molding is possible and a dignity sense of a glass can be obtained.
Consequently, these materials are suitable for a material of the
resin sheathing body (b).
[0050] Any resin material can be used for the hollow molding body
(a) made of a resin and the cap member 18. There can be used for
instance a polyolefin series resin (such as polyethylene and
polypropylene), polyester (PET (polyethylene terephthalate)), PETG,
PCTG, PCT (polycyclohexane dimethyl terephthalate), PCTA, PEN (such
as polyethylene naphthalate), an acrylic resin, a styrene series
resin (such as a styrene acrylonitrile copolymer resin and a
styrene methyl methacrylate copolymer resin), a cycloolefin
polymer, polycarbonate, polyamide, an ionomer resin, and PAN
(polyacrylonitrile). In the case in which a material the same as
that of the resin sheathing body (b) is used, a synergistic effect
with the resin sheathing body (b) can be obtained, thereby
improving a high quality sense, an appearance property, and an
aesthetic appreciation of the composite container (A).
[0051] The resin hollow molding body (a) is set in a metal mold,
and a molten resin is flown into the metal mold and on an external
surface of the resin hollow molding body (a) to form the resin
sheathing body (b). Consequently, it is preferable that the hollow
molding body (a) is made of polyester or polyamide that has a
comparatively high melting temperature in the case in which a
highly transparent synthetic resin is used.
[0052] In the case in which a liquid material that is held in the
resin hollow molding body (a) is a chemical, it is preferable to
use polyethylene or polypropylene that has a comparatively
excellent chemical resistance in highly transparent synthetic
resins.
[0053] Moreover, it is possible and preferable to use the resin
hollow molding body (a) composed of multiple layers of which one
layer is a barrier layer in order to improve a barrier
characteristic.
[0054] As a material that is used for a barrier layer, there can be
mentioned for instance an ethylene vinyl alcohol copolymer (EVOH)
and polyamide.
[0055] Moreover, it is possible to be provided with an adhesive
layer in order to improve an adhesive property of the barrier layer
to other layers similarly to an adhesive property to the highly
transparent resin sheathing body (b).
[0056] Similarly to the above resin hollow molding body (a), for
the cap member 18, it is preferable to use polyethylene or an
ionomer resin that has a comparatively excellent chemical
resistance in highly transparent synthetic resins since the cap
member 18 may partially come into contact with the chemical.
[0057] Such a highly transparent synthetic resin may be colored or
may have no color. Moreover, the resin hollow molding body (a), the
highly transparent resin sheathing body (b), and the cap member 18
can have different colors from each other.
[0058] In the case in which a blue highly transparent synthetic
resin in which Heliogen Blue K6911D (manufactured by BASF Company)
is contained in ionomer is used for molding, the material can be
colored to be blue.
[0059] Even in the case in which a character or a graphic is
generated on a surface of the resin hollow molding body (a), the
character or the graphic that has been generated on the resin
hollow molding body (a) is visible reliably from the outside of the
highly transparent resin sheathing body (b) by using such a highly
transparent synthetic resin.
[0060] Moreover, in the case in which a light reflecting powder
(not shown) is dispersed in the highly transparent synthetic resin,
a light is reflected from the light reflecting powder and glitters,
thereby further improving a high quality sense.
[0061] As such a light reflecting powder, it is preferable to use a
light reflecting powder in which a metal or metal oxide is coated
on a surface of mica that is a core of the light reflecting
powder.
[0062] Moreover, in the present embodiment, since both of the resin
hollow molding body (a) and the highly transparent resin sheathing
body (b) are made of a resin, it is not necessary to separate the
resin hollow molding body (a) and the highly transparent resin
sheathing body (b) from each other in a disposal, whereby a recycle
property is extremely satisfactory.
[0063] Furthermore, in the case in which the resin hollow molding
body (a) that is a core is made of a resin, and the resin sheathing
body (b) is made of a highly transparent synthetic resin, a high
quality sense, an aesthetic appreciation, and an appearance
property can be extremely improved for the composite container
(A).
[0064] The resin hollow molding body (a) can be previously
manufactured by a blow molding method or by a method of forming two
divided molding bodies in advance and welding the two bodies using
a vibration welding method. However, the manufacturing method is
not restricted in particular. Moreover, in the case in which a
highly transparent resin sheathing body (b) is integrated with an
outside of the resin hollow molding body (a), the resin hollow
molding body (a) is set in a pair of metal mold and is over-molded
in the state in which the cap member 18 has been mounted. The
method for integrating the highly transparent resin sheathing body
(b) with an outside of the resin hollow molding body (a) is not
restricted in particular.
[0065] FIGS. 3 and 4 show another embodiment of a composite
container in accordance with the present invention.
[0066] Elements substantially equivalent to those illustrated in
FIGS. 1 and 2 are numerically numbered similarly and the detailed
descriptions of the equivalent elements are omitted.
[0067] For the composite container (B) shown in FIGS. 3 and 4, the
resin hollow molding body (a) that is formed inside is in a
cylindrical shape, and a cross section in a horizontal direction
for an external shape of the highly transparent resin sheathing
body (b) is in an octagon shape. In other words, a cross-sectional
shape in a horizontal direction of the resin hollow molding body
(a) and that of the highly transparent resin sheathing body (b) are
different from each other.
[0068] It is preferable that the minimum thickness (X) at the major
portion of the highly transparent resin sheathing body (b) is at
least 0.1 mm, in particular at least 1 mm, and the maximum
thickness (Y) of the highly transparent resin sheathing body (b) is
50 mm or less, in particular 30 mm or less.
[0069] Since a shape of the resin hollow molding body (a) and that
of the highly transparent resin sheathing body (b) are different
from each other as described above, a part of the minimum thickness
(X) and a part of the maximum thickness (Y) can be discriminated
with clarity, whereby the resin hollow molding body (a) disposed
inside can be discriminated with clarity from the outside.
Moreover, in the case in which a liquid of a blue color or an
opaque white color has been stored into the resin hollow molding
body (a), the color appears outside via a transparent body, whereby
a shape and a profile of the resin hollow molding body (a) can be
discriminated with clarity.
[0070] FIG. 5 is a cross-sectional view for a major portion of a
composite container (C) in accordance with another embodiment of
the present invention.
[0071] The composite container (C) in accordance with the present
embodiment is composed of a resin hollow molding body (a) in which
a cross section in a horizontal direction is in a quadrangular
shape and a highly transparent resin sheathing body (b) in which a
cross section in a horizontal direction is in a quadrangular
shape.
[0072] A minimum thickness (X) and a maximum thickness (Y) at a
major portion are configured by arranging the resin hollow molding
body (a) and the highly transparent resin sheathing body (b) at the
positions rotated by an angle of 45 degrees.
[0073] An example of a composite container (D) in accordance with
another embodiment shown in FIG. 6 is a combination of a resin
hollow molding body (a) in which a cross section in a horizontal
direction is in a quadrangular shape and a highly transparent resin
sheathing body (b) in which a cross section in a horizontal
direction is in a cylindrical shape.
[0074] An example of a composite container (E) in accordance with
another embodiment shown in FIG. 7 is a combination of a resin
hollow molding body (a) in which a cross section in a horizontal
direction is in a quadrangular shape and a highly transparent resin
sheathing body (b) in which a cross section in a horizontal
direction is in an octagon shape. An example of a composite
container (F) in accordance with another embodiment shown in FIG. 8
is a combination of a resin hollow molding body (a) in which a
cross section in a horizontal direction is in a triangular shape
and a highly transparent resin sheathing body (b) in which a cross
section in a horizontal direction is in a cylindrical shape.
[0075] For any one of the above embodiments, a minimum thickness
(X) at a major portion of the highly transparent resin sheathing
body (b) is at least 0.1 mm and a difference of a maximum thickness
(Y) and the minimum thickness (X) at a major portion of the highly
transparent resin sheathing body (b) is at least 2 mm.
[0076] While the preferred embodiments of the present invention
have been described above, the present invention is not restricted
to the embodiments. For instance, any shapes of the resin hollow
molding body (a) and the highly transparent resin sheathing body
(b) and a combination of any shapes can be adopted depending on an
intended purpose of a user and a use application. Moreover, an
article that is hold in the composite container is not restricted
in particular.
[0077] The point is any shapes and any combination of shapes can be
adopted and a color of the content is not restricted in particular
providing the resin hollow molding body (a) can be discriminated
via the highly transparent resin sheathing body (b). For instance,
the highly transparent resin sheathing body (b) in a cylindrical
shape can also be combined with the resin, hollow molding body (a)
in a cylindrical shape. Moreover, the centers of the inside
container and the outside container can be shifted from each other,
whereby a thickness of one side of the highly transparent resin
sheathing body (b) is larger and a thickness of the other side is
smaller.
* * * * *