Patent · US Expired

Multilayer element for producing printing or relief plates

US6103451A · kind A · utility

2Cited by

8References

8Claims

0Family size

Assignee

BASF Drucksysteme GmbH · DE

Inventors

Rainer Blum · Ludwigshafen, DE
Sabine Philipp · Mörfelden, DE
Alfred Leinenbach · Ludwigshafen, DE

Key dates

Filing date	Sep 21, 1998
Grant date	Aug 15, 2000
Priority date	—
Expiry date	Sep 21, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG03F7/11
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A multilayer element comprising a substrate, an intermediate layer and a photopolymerizable or photocrosslinkable layer in the stated order is used for producing printing or relief plates. The intermediate layer contains a copolymer of a monomer (A) of the formula (I) or (II) and a copolymerizable monomer (B) ##STR1## where R.sup.1 is vinyl, propen-2-yl, 1-buten-2-yl or styryl or a radical R.sup.2 --O--CO--CH.dbd.CH--, R.sup.2 is an alkyl, aryl, aralkyl or cycloalkyl radical of up to 10 carbon atoms, R.sup.3 is H, methyl or ethyl and n is from zero to 5. The intermediate layer in the multilayer element has improved adhesion in the laminate. It is initially nontacky and does not become tacky until after the application of the photopolymerizable layer, as a result of the interaction with said layer. The improved adhesion in the laminate is retained even after storage and repeated use of the finished printing plates.

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