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US Patent 7763265 UV barrier formulation for polyesters

Patent 7763265 was granted and assigned to DAK Americas (company) on July, 2010 by the United States Patent and Trademark Office.

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Patent
Patent

Patent attributes

Current Assignee
‌
DAK Americas (company)
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7763265
Date of Patent
July 27, 2010
Patent Application Number
10879160
Date Filed
June 30, 2004
Patent Citations Received
‌
US Patent 11891479 Thermoformed packaging and methods of forming the same
3
‌
US Patent 11858241 Transparent polymer film with discolouration compensation
4
Patent Primary Examiner
‌
Johann R. Richter
Patent abstract

The invention provides UV-barrier formulations which result in products which effectively resist the transmission of ultraviolet light therethrough. The invention also provides UV-barrier formulations which result in products with improved resistance to ultraviolet light. In particular, the invention provides UV barrier formulations for polyester resins that have improved resistance to ultraviolet radiation, and significantly reduce ultraviolet light transmission in the resulting resin products. The invention also provides products and manufacturing processes based on the above formulations.

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