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Patent applications and USPTO patent grants for Kohnen; Sven.The latest application filed is for "method for the modification of polyvinyl butyrals".
Patent | Date |
---|---|
Process for production of a modified acetalated polyvinyl alcohol Grant 8,178,618 - Frank , et al. May 15, 2 | 2012-05-15 |
Method For The Modification Of Polyvinyl Butyrals App 20090176937 - Frank; Michael ;   et al. | 2009-07-09 |
Modification Of Acetalized Polymers Containing Vinyl Alcohol Groups By Means Of Reaction With Carboxylic Acid Anhydrides And Subsequent Photochemical Crosslinking App 20090092765 - Kohnen; Sven ;   et al. | 2009-04-09 |
Plastic shaped bodies based on polyvinyl alcohol, method for the production thereof involving thermoplastic methods, and their use App 20050001348 - Kohnen, Sven ;   et al. | 2005-01-06 |
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