公开(公告)号：DE19811289A1

公开(公告)日：1999-09-23

申请号：DE19811289

申请日：1998-03-16

Applicant: BASF AG

Inventor： MALETZKO CHRISTIAN ,  BAUMANN EDWIN ,  BEUERMANN ILKA RENATE ,  ROCHE PETER ,  TREULING ULRICH ,  FREI HANS-PETER

IPC: C08G18/10 ,  C08G18/40 ,  C08G18/73 ,  C08G18/75 ,  C08G18/79 ,  C08G18/42 ,  C08G18/48 ,  C08G18/78 ,  C09D175/04 ,  C08L75/04

Abstract: A process for the production of compact, transparent polyisocyanate-polyaddition products by reacting (a) isocyanates with (b) compounds which react with isocyanates, optionally in the presence of catalysts and/or additives etc., in which (b) is a mixture with an average functionality of more than 3 and an average hydroxyl number of 300-950 mg KOH/g. Independent claims are also included for (a) compact, transparent polyisocyanate-polyaddition products obtained by this process; and (b) sun roofs, front, rear and side windows for cars or aircraft, and lamp covers containing these products.

公开(公告)号：DE19831290A1

公开(公告)日：2000-01-20

申请号：DE19831290

申请日：1998-07-13

Applicant: BASF AG

Inventor： BEUERMANN ILKA RENATE ,  KUHN KIRSTEN ,  THEIS DIRK

IPC: C08G18/08 ,  C08G18/10 ,  C08G18/80 ,  C09D175/04

Abstract: In the production of isocyanate prepolymers with blocked isocyanate end groups by reacting a difunctional isocyanate with a blocking agent and a difunctional alcohol, a portion of the isocyanate groups are reacted with the blocking agent followed by reaction with the alcohol.

公开(公告)号：CA2263646A1

公开(公告)日：1999-09-16

申请号：CA2263646

申请日：1999-03-15

Applicant: BASF AG

Inventor： FREI HANS-PETER ,  ROCHE PETER ,  TREULING ULRICH ,  BEUERMANN ILKA RENATE ,  BAUMANN EDWIN ,  MALETZKO CHRISTIAN

IPC: C08G18/42 ,  C08G18/10 ,  C08G18/40 ,  C08G18/73 ,  C08G18/75 ,  C08G18/79 ,  C08G18/08 ,  C08L75/04 ,  C08G18/70

Abstract: Compact, transparent polyisocyanate polyaddition products are produced in a process by reacting (a) isocyanates with (b) compounds reactive to isocyanates, if desired in the presence of (c) catalysts and (d) auxiliaries and/or additives, which comprises using as (b) compounds reactive to isocyanates a mixture (i) which has an average functionality of >3 and an average hydroxyl number of from 300 to 950 mg KOH/g.