公开(公告)号：DE19816525A1

公开(公告)日：1999-10-21

申请号：DE19816525

申请日：1998-04-15

Applicant: BASF AG

Inventor： SERVAY THOMAS ,  LEBERFINGER MARKUS ,  NITSCHKE DIETER

IPC: C08G18/32 ,  C08G18/66 ,  C08G18/65 ,  C08L75/04 ,  D01F6/70 ,  H01B3/42

Abstract: The production of polyisocyanate polyaddition products comprises use of a 1,3- and/or 1,2-propanediol chain extender to isocyanate and isocyanate reactive compounds. A process for the production of polyisocyanate polyaddition products (I) comprises reaction of: (A) isocyanates with (B) isocyanate reactive compounds having a molecular weight of 451-8,000 in the presence of (C) a chain extender consisting of 1,3- and/or 1,2-propanediol and optionally (D) crosslinking agents, (E) catalysts and/or (F) conventional processing aids and/or additives to a characteristic index of at least 104. Independent claims are included for: (i) a process for the production of thermoplastic (I) by reaction of (A) with (B) (molecular weight of 451-8,000 and functionality of 1.8-2.6) in the presence of (C), (E) and/or (F) to a characteristic index of 104; (ii) the resulting polyisocyanate addition products (I); and (iii) cable sheathing, fibers, molded articles, automotive interior cladding, sealants, cable sockets, bellows, tubing, film, rolls, belts and dampers prepared from (I).