公开(公告)号：DE3064575D1

公开(公告)日：1983-09-22

申请号：DE3064575

申请日：1980-07-17

Applicant: BASF AG

Inventor： NISSEN DIETMAR DR ,  MARX MATTHIAS DR ,  JARRE WOLFGANG DR ,  SCHOEN ERNST DR ,  DECKER WALTER

IPC: C08G18/08 ,  C08G18/28 ,  C08J9/00 ,  C08K5/34 ,  C08K5/3492 ,  C08L75/04

Abstract: Stable melamine-polyoxyalkylene polyether polyol dispersions are prepared by the in situ reduction of melamine particles wherein 90 percent of the melamine particles have a particle size of less than 10 microns. Stabilizers for the melamine-polyol dispersion are selected from the group consisting of (a) silicic acids and silicates, (b) salts of perfluorinated alkyl carboxylic acids having 4 to 20 carbon atoms, salts of alkyl sulfonic acids and perfluorinated alkylsulfonic acids having 4 to 20 carbon atoms and polyperfluoroether polyols having molecular weights of 300 to 6000, and (c) salts of fatty alcohol sulfates having 6 to 30 carbon atoms. These dispersions are useful for the preparation of polyurethane foams.

公开(公告)号：DE3171743D1

公开(公告)日：1985-09-12

申请号：DE3171743

申请日：1981-12-11

Applicant: BASF AG

Inventor： DECKER WALTER ,  SCHOEN ERNST DR ,  GRABHOEFER HERBERT DR ,  WEYLAND PETER DR

IPC: C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G63/20 ,  C08G65/28

Abstract: The invention concerns a process for the preparation of flexible polyurethane foams having good hydrolytic stability, improved damping, with equal or higher levels of other physical properties and with a high absorption capacity. The foams are prepared by reacting organic polyisocyanates and mixtures of (a) liquid polyester polyols, which are produced by the polycondensation of organic dicarboxcylic acid and a polyol mixture which contains 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, and at least one triol, and (b) di- to tetra-functional polyether polyols having molecular weights of 1500 to 6000 in the presence of catalysts and blowing agents as well as optionally chain extenders, auxiliaries, and additives.

公开(公告)号：AT14741T

公开(公告)日：1985-08-15

申请号：AT81110344

申请日：1981-12-11

Applicant: BASF AG

Inventor： DECKER WALTER ,  SCHOEN ERNST DR ,  GRABHOEFER HERBERT DR ,  WEYLAND PETER DR

IPC: C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G63/20 ,  C08G65/28

公开(公告)号：DE2964667D1

公开(公告)日：1983-03-10

申请号：DE2964667

申请日：1979-05-28

Applicant: BASF AG

Inventor： HORACEK HEINRICH DR ,  SCHOEN ERNST DR ,  REICH ERHARDT DR ,  VOLKERT OTTO DR

IPC: C08G18/00 ,  C08G18/16 ,  C08G18/18 ,  C08G18/22 ,  C08G18/72 ,  C08G18/73 ,  C08G18/75 ,  C08G18/78 ,  C08G18/80 ,  C08G18/14

Abstract: To prepare light-stable polyurethane integral skin foams, especially soft integral foams, aliphatic and/or cycloaliphatic polyisocyanates, both categories preferably containing urethane groups and/or biuret groups, are reacted with polyols in the presence of blowing agents and of a synergistic catalyst combination comprising an alkali metal hydroxide, alkali metal alcoholate, alkali metal phenolate, alkali metal salt of a weak acid and/or hexahydrotriazine derivative and an organic tin, zinc and/or iron(II) compound, in the presence or absence of assistants and adjuvants. The preferred catalyst combination is tri-(dimethylaminopropyl)-s-hexahydrotriazine and dibutyl-tin dilaurate.

公开(公告)号：DE2963360D1

公开(公告)日：1982-09-09

申请号：DE2963360

申请日：1979-03-24

Applicant: BASF AG

Inventor： JARRE WOLFGANG DR ,  STUTZ HERBERT DR ,  SCHOEN ERNST DR

IPC: C08G18/00 ,  C08G18/72 ,  C08G18/76 ,  C08G18/80 ,  C08G18/14