公开(公告)号：DE10160375A1

公开(公告)日：2003-06-18

申请号：DE10160375

申请日：2001-12-10

Applicant: BASF AG

Inventor： FRITZ RALF ,  TAENNY GUENTER ,  SCHNEIDER JUERGEN ,  HOLL SILVIO ,  HOLST CARSTEN

IPC: C08G18/10 ,  C08G18/79 ,  B62D25/00 ,  C08G18/48 ,  C08J9/22

Abstract: Preparation of polyurethanes by reaction of a polyol component (A) with a polyisocyanate prepolymer (B) where the polyol component comprises: (A1) polyetherol of OH number 10-100; (A2) a crosslinking polyetherol of OH number 500-1000; (A3) a chain lengthening agent based on amines and the polyisocyanate prepolymer, (B) obtained by reaction of (B1) a polyisocyanate with (B2) a poly-tetrahydrofuran. A process for preparation of polyurethanes by reaction of a polyol component (A) with a polyisocyanate prepolymer (B) where the polyol component comprises: (A1) polyetherol of OH number 10-100; (A2) a crosslinking polyetherol of OH number 500-1000; (A3) a chain lengthening agent based on amines and the polyisocyanate prepolymer, (B) obtained by reaction of (B1) a polyisocyanate with (B2) a poly-tetrahydrofuran. Independent claims are included for: (1) a polyurethane obtained as above; and (2) automobile external parts containing polyurethane as above.

公开(公告)号：DE10150485A1

公开(公告)日：2003-04-24

申请号：DE10150485

申请日：2001-10-16

Applicant: BASF AG

Inventor： GOESLING ECKHARD ,  SCHMIDT HANS ULRICH ,  HOLL SILVIO ,  HAASE VOLKER

IPC: C08G18/40 ,  C08G18/76 ,  C08G18/48 ,  C08J9/34

Abstract: The hard polyurethane foam is prepared by reaction of (a) at least one polyisocyanate with (b) at least one compound having at least two H atoms reactive to isocyanate groups in a closed mold, where polyisocyanate (a) is a polyisocyanate mixture (a1) containing (wt.%): a mixture of diphenylmethane diisocyanate (I) and polymethylenepolyphenylene polyisocyanate (II) of NCO content 30-32,a two-core isomer content of 46-49, a content of 3-core isomers of 22-25, a content of 4-core isomers of 6-8, and an isomer distribution of the 2-core content of 41-45 of the 4,4- and 4,4'- isomers and 2-5 of the 2,4- and 2,4'- isomers, relative to the mixture of I and II.

公开(公告)号：DE10028210A1

公开(公告)日：2001-12-13

申请号：DE10028210

申请日：2000-06-09

Applicant: BASF AG

Inventor： FRITZ RALF ,  TAENNY GUENTER ,  HOLL SILVIO ,  FREY LOTHAR

IPC: C08G18/48 ,  C09K3/10 ,  C09D5/34 ,  E04B1/66 ,  E04B1/68

Abstract: Isocyanate-reactive compounds with a content of less than 1 wt% oxyethylene units (I) are used in a method for the production of seals based on polyisocyanate-polyaddition products by reacting isocyanates with (I) and optionally blowing agents, catalysts, auxiliary substances and/or additives. Independent claims are also included for seals and all-round seals for windscreens, obtained by this method.