Patent · US Expired

Transparent molding composition for optical applications

US7133209B2 · kind B2 · utility

7Cited by

16References

20Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Roland Wursche · Schneverdingen, DE
Dagmar Kaufhold · Recklinghausen, DE
Berthold Teloeken · Marl, DE

Key dates

Filing date	Feb 24, 2004
Grant date	Nov 7, 2006
Priority date	—
Expiry date	Feb 24, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31732
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

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 that

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.