公开(公告)号：DE3908237A1

公开(公告)日：1990-09-20

申请号：DE3908237

申请日：1989-03-14

Applicant: BASF AG

Inventor： LAUSBERG DIETRICH DR ,  BRAUN HANS-GEORG DR ,  STREU JOACHIM DR ,  FAEHNDRICH KNUD

IPC: C08L75/00 ,  C08L75/04

公开(公告)号：DE3614038A1

公开(公告)日：1987-11-05

申请号：DE3614038

申请日：1986-04-25

Applicant: BASF AG

Inventor： STREU JOACHIM DR ,  STRAEHLE WOLFGANG DR

IPC: C08G18/42 ,  C08G63/16 ,  C08G63/20 ,  C08G18/66

Abstract: This invention relates to polyester polyols which are liquid at 25 DEG C. and contain units having the structure -OCH2-CH(CH3)-CH2CH2O- which are bound together and have an average functionality of from about 2 to 3, a hydroxyl number of from about 25 to 300, an acid number of less than about 2, and a viscosity of from about 200 to 105 mPas at 25 DEG C. The polyols are prepared through polycondensation in the molten state, in the presence of or absence of esterification catalysts, of an aliphatic di- and/or polycarboxylic acid and/or di- and/or polycarboxylic acid ahydride and 2-methyl-1,4-butanediol or mixtures comprised of 2-methyl-1,4-butanediol and at least one linear or branched, aliphatic di- through tetravalent alcohol, which optionally contains ether bridges and has a 2-methyl-1,4-butanediol content of at least 20 weight percent based on the weight of the alcohol mixture. The polyester polyols are suited for the preparation of non-cellular or cellular polyurethane plastics or polyurethane-polyurea plastics and preferably polyurethane elastomers, using the polyisocyanates addition polymerization process.

公开(公告)号：DE3613650A1

公开(公告)日：1987-10-29

申请号：DE3613650

申请日：1986-04-23

Applicant: BASF AG

Inventor： WERNER FRANK DR ,  STREU JOACHIM DR ,  MUELLER HERBERT DR

IPC: C08G18/42 ,  C08G18/66