公开(公告)号：DE59711065D1

公开(公告)日：2004-01-15

申请号：DE59711065

申请日：1997-03-29

Applicant: BASF AG

Inventor： HAEUSSLING DR ,  KOCH DR ,  LEBKUECHER WERNER

IPC: C07D211/94 ,  C08F2/40 ,  C08J3/03 ,  C08K5/3432 ,  C08K5/3435 ,  C08K5/353 ,  C08L57/00 ,  C08L75/16 ,  C09D7/45 ,  C09D175/14 ,  C09D7/02

Abstract: Aqueous dispersions of compounds with copolymerisable ethylenically unsaturated groups contain a stabiliser containing at least a piperidin-N-oxyl group tetrasubstituted in 2,2,6,6-position by a 1-6C hydrocarbon group. he stabiliser is most preferably of formula (V). The stabiliser is present in an amount of 0.001-0.5 wt.%. The dispersions contains polyurethane compounds in an amount of 0.005-0.4 mol. ethylenically unsaturated groups per 100 g polyurethane.

公开(公告)号：DE50004228D1

公开(公告)日：2003-12-04

申请号：DE50004228

申请日：2000-08-25

Applicant: BASF AG

Inventor： PRECHTL DR ,  SCHNEIDER NORBERT ,  MEYER DR ,  PARKER ROBERT ,  RICHTER VOLKER ,  HEILMANN DR ,  KOCH DR ,  SCHUHMACHER DR

IPC: G02B5/30 ,  C08F2/46 ,  C08F20/26 ,  C09B67/00 ,  C09B67/02 ,  C09B67/08 ,  C09B67/20 ,  C09D5/29 ,  C09D5/36 ,  C09D201/00 ,  C09K19/00 ,  G02F1/1335

Abstract: Cholesteric laminate material has at least one 3-dimensionally crosslinked, oriented cholesteric layer (I) showing a homogeneous interference line pattern over the entire thickness. Independent claims are also included for the following: (a) cholesteric pigment comprising layer(s) (I) with an average particle size of 5-50 mu m and thickness of 0.2-5 mu m; (b) compositions containing the pigment(s); (c) polarizers, comprising the laminate and optionally a substrate foil; (d) broad band polarizers comprising laminates with a total thickness of about 2-50 mu m (without substrate film) and 3-20 cholesteric layers with attuned reflection maxima; and (e) the production of the laminate with layer(s) (I).