公开(公告)号：ES2120093T3

公开(公告)日：1998-10-16

申请号：ES95104610

申请日：1995-03-29

Applicant: BASF AG

Inventor： LUTTER HEINZ-DIETER DR ,  ZSCHIESCHE RUTH DR ,  MERTES JURGEN DR ,  BRUCHMANN BERND DR ,  PITTRICH KLAUS ,  BRANDT PETER DR

IPC: C08G18/00 ,  C08G18/08 ,  C08G18/10 ,  C08G18/40 ,  C08G18/48 ,  C08J9/02 ,  C08G18/72 ,  C08G18/76 ,  C08G101/00 ,  C08J9/14

Abstract: The prepn. of chlorofluorocarbon (CFC)-free polyurethane soft foams comprises reacting: (A) liq. diphenylmethane diisocyanate-based polyisocyanate mixts. contg. bonded urethane gps.; with (B) high mol. wt. polyhydroxyl cpds.; and (C) opt. low mol. wt. chain extenders and/or cross linking agents; in the presence of (D) propellants; (E) catalysts; and (F) opt. additives. (A) contains 22-30 wt. % NCO gps. and is prepd. by reacting a diphenylmethane diisocyanate/polyisocyanate mixt. (a) contg. 55-99 wt. % diphenylmethane diisocyanate isomers, with at least one trifunctional polyoxypropylene polyol (b) with a hydroxy value of 20-60. (A) are also claimed per se.

公开(公告)号：ES2052795T3

公开(公告)日：1994-07-16

申请号：ES89105095

申请日：1989-03-22

Applicant: BASF AG

Inventor： BAUMGARTNER EHRENFRIED DR ,  ECHTE ADOLF PROF DR ,  MERTES JURGEN DR

IPC: C08F212/10 ,  C08F20/52 ,  C08F212/00 ,  C08F212/08 ,  C08F220/42 ,  C08F220/44 ,  C08F220/54 ,  C08F220/56

Abstract: The moulding composition contains a copolymer of a) styrene, b) optionally acrylonitrile and c) an N-substituted amide of methacrylic acid, the monomers being present in amounts of from 1 to 95% by weight of a), up to 40% by weight of b) and from 98 to 5% by weight of c), and the monomer c) used being the methacrylamide of the formula … … in which R is a primary, secondary or tertiary alkyl radical, cycloalkyl radical, aryl radical or aralkyl radical having 1 to 12 carbon atoms, with the proviso that, if the alkyl radical is methyl or isopropyl, the copolymers have a styrene content of less than 75% by weight.