US Patent 7691477 Polyformals as a coextrusion protective layer on polycarbonate
Patent 7691477 was granted and assigned to Bayer MaterialScience on April, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A multi-layer article is disclosed. The article contains a base layer that contains at least one thermoplastic resin and a second layer containing a thermoplastic (co)polyformal superimposed over the base layer. The (co)polyformal conforms to formulae (1a) or (1b),
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Patent Inventor Names
Claus Rüdiger0
Helmut-Werner Heuer0
Jürgen Röhner0
Marco Roelofs0
Ralf Hufen0
Rolf Wehrmann0
Rüdiger Gorny0
Siegfried Anders0
Sylvia Braun0
Wolfgang Nising0
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Official Website
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US Patent 07691477 Polyformals as a coextrusion protective layer on polycarbonate US Patent 7691477 Polyformals as a coextrusion protective layer on polycarbonate
Infobox
Patent Number
076914770
Patent Number
76914770
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
076914770
Date of Patent
April 6, 2010
0Patent Application Number
112454060
Date Filed
October 6, 2005
0Official Website
Patent Primary Examiner
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US Patent 07691477 Polyformals as a coextrusion protective layer on polycarbonate
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07691477
Date of patent
April 6, 2010
Patent application number
11245406
Date Filed
October 6, 2005
Patent primary examiner
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