Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Dagmar Kaufhold0
Roland Wursche0
Berthold Teloeken0
Date of Patent
November 7, 2006
Patent Application Number
10784712
Date Filed
February 24, 2004
Patent Primary Examiner
Patent abstract
A molding composition which is composed of at least 60% by weight of transparent polyamide, where the molding composition comprises an effective amount of one or more optical brighteners, and where the amount of the optical brightener has been judged in such a way thata) the b value, which is a measure of yellowness, is at most 7, and moreoverb) between 370 and 430 nm, at least in a lower part of the range, the transmittance is smaller than 1%, measured at a layer thickness of 4 mm,can be processed to give products which are substantially impermeable to UV light.
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