Patent · US Expired

Photopolymerizable copying composition

US3930865A · kind A · utility

38Cited by

4References

16Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Raimund J. Faust · Wiesbaden, DE
Kurt Klupfel

Key dates

Filing date	Dec 18, 1974
Grant date	Jan 6, 1976
Priority date	—
Expiry date	Dec 18, 1994

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/111
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to a photopolymerizable copying composition comprising at least one polymerizable compound, at least one photo-initiator, and at least one copolymer of (A) an unsaturated carboxylic acid, (B) an alkyl methacrylate with at least 4 carbon atoms in the alkyl group, and (C) at least one additional monomer which is capable of copolymerization with monomers (A) and (B), the homopolymer of said additional monomer having a glass transition temperature of at least 80.degree.C.

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