公开(公告)号：DE19922377A1

公开(公告)日：2000-11-16

申请号：DE19922377

申请日：1999-05-14

Applicant: BASF AG

Inventor： HAEBERLE KARL ,  TREIBER REINHARD ,  WEYLAND PETER

IPC: C08G18/08 ,  C08G18/12 ,  C08G18/66 ,  C09D175/04 ,  C08J3/03 ,  C08L75/02 ,  C08L75/04 ,  C09J175/04

Abstract: Aqueous polyurethane-polyurea dispersions are produced by making a polyurethane prepolymer with hydrophilic groups and isocyanate groups, reacting this with a mixture (M) of an aliphatic ketone or aldehyde and an amine (A1) with at least 2 primary and/or secondary amino groups and then dispersing the mixture obtained in water. An Independent claim is also included for aqueous dispersions of polyurethane-polyurea obtained by this process.

公开(公告)号：CA1165500A

公开(公告)日：1984-04-10

申请号：CA393751

申请日：1982-01-08

Applicant: BASF AG

Inventor： GRABHOEFER HERBERT ,  WEYLAND PETER

IPC: C08G18/42 ,  C08G63/20 ,  C08G18/14

Abstract: A Process for the Preparation of Flexible Polyurethane Foams With Improved Resistance to Hydrolysis and Good Die CuttabilitY of the Invention The invention concerns a process for the preparation of flexible polyurethane foams by reacting organic polyisocyanates, liquid polyester polyols having hydroxyl numbers of 40 to 80 and molecular weights of 1500 to 5000, which are produced by the polycondensation of organic dicarboxylic acids with either polyol mixture A, based on the overall polyol weight consisting of: 5 to 50 percent by weight of 1,4-butanediol, 20 to 60 percent by weight of 1,5-pentanediol, 8 to 35 percent by weight of 1,6-hexanediol, 2 to 15 percent by weight of at least one triol, and 0 to 65 percent by weight of diethylene glycol, or polyol mixture B, based on the overall polyol weight consisting of: 10 to 50 percent by weight of 1,4-butanediol, 15 to 45 percent by weight of 1,6-hexanediol, 2 to 15 percent by weight of at least one triol, in the presence of catalysts and blowing agents as well as optionally chain extenders, auxiliaries and additives.

公开(公告)号：CA1146700A

公开(公告)日：1983-05-17

申请号：CA368464

申请日：1981-01-14

Applicant: BASF AG

Inventor： HORN PETER ,  HESSE ANTON ,  WEYLAND PETER ,  STRAEHLE WOLFGANG ,  MARX MATTHIAS

IPC: C08G18/00 ,  C08G18/02 ,  C08G18/28 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/50 ,  C08G18/56 ,  C08G18/60 ,  C08G18/64 ,  C08G18/65 ,  C08G18/66 ,  C08G18/14

Abstract: This invention relates to a process for preparing cellular polymers having urethane groups, isocyanurate groups, or both. The cellular polymers are prepared by reacting an organic polyisocyanate with certain polymer dispersions in the presence of a blowing agent. The polymer dispersions comprise (a) as a continuous phase, a polyol having a functionality of 2 to 8 and a hydroxyl number of 150 to 700; and (b) as a dispersed phase, an organic compound having (a) at least one Zerewitinoff active hydrogen atom, (b) a melting point of 30-C to 260-C, and (c) a molecular weight of 178 to 100,000.