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1. (WO2008125202) RADIATION-CROSSLINKING AND THERMALLY CROSSLINKING PU SYSTEMS-BASED ON POLY(ε-CAPROLACTONE)POLYESTER POLYOLS

Pub. No.:    WO/2008/125202    International Application No.:    PCT/EP2008/002467
Publication Date: Fri Oct 24 01:59:59 CEST 2008 International Filing Date: Sat Mar 29 00:59:59 CET 2008
IPC: C08G 18/42
C08G 18/48
C08G 18/63
C08G 18/78
G03H 1/02
G11C 13/04
Applicants: BAYER MATERIALSCIENCE AG
INPHASE TECHNOLOGIES INC.
BAYER MATERIALSCIENCE LLC
STOECKEL, Nicolas
BRUDER, Friedrich-Karl
NIESTEN, Meike
BLUM, Harald
STRAZISAR, Stephanie
Inventors: STOECKEL, Nicolas
BRUDER, Friedrich-Karl
NIESTEN, Meike
BLUM, Harald
STRAZISAR, Stephanie
Title: RADIATION-CROSSLINKING AND THERMALLY CROSSLINKING PU SYSTEMS-BASED ON POLY(ε-CAPROLACTONE)POLYESTER POLYOLS
Abstract:
The present invention provides polyurethane Systems which cure by radiation and thermal action with crosslinking, and use thereof for the produetion of holographic media. The polyurethane compositions of the invention comprise A) polyisocyanates, B) polyols, comprising at least one poly(ε-caprolactone)polyester polyol, C) Compounds having groups which react on exposure to actinic radiation with ethylenically unsaturated Compounds with polymerization (radiation-curing groups), D) optionally free radical stabilizers and E) photoinitiators.