公开(公告)号：DE50000856D1

公开(公告)日：2003-01-16

申请号：DE50000856

申请日：2000-04-22

Applicant: BASF AG

Inventor： BRUCHMANN DR ,  SERVAY DR ,  TREULING DR

IPC: C08G18/08 ,  C08G18/32 ,  C08G18/66 ,  C08G18/72

Abstract: Linear, unbranched oligo- and polyurethanes are prepared by reaction of a diisocyanate with compounds having two isocyanate reactive groups, of differing reactivity such that only certain functional groups react. Linear, unbranched oligo- and polyurethanes (I) are prepared by reaction of (A) 1 mole of a diisocyanate with (B) 1 mole of compounds having two isocyanate reactive groups whereby the functional groups of (A) and./or (B) have a different reactivity wit respect to the functional groups of the other reaction partners and the reaction conditions are chosen such that only certain functional groups of (A) and (B) react with each other.