公开(公告)号：DE10027566A1

公开(公告)日：2001-12-06

申请号：DE10027566

申请日：2000-06-02

Applicant: BASF AG

Inventor： LUTTER HEINZ-DIETER ,  SCHUPP THOMAS ,  RODEWALD DIETER ,  ARLT ANDREAS ,  BRUCHMANN BERND

IPC: C08G18/78 ,  C08G18/79 ,  C08G18/77 ,  C08J9/22 ,  B29C44/02 ,  B68G5/02

Abstract: Use of isocyanates (I) containing allophanate-, biuret- and/or uretedione structures for the production of polyisocyanate-polyaddition products for the reduction of the aromatic amine content in polyisocyanate-polyaddition products. An Independent claim is also included for the use of the isocyanates (I) for the production of polyurethane foams (II).

公开(公告)号：AU6263400A

公开(公告)日：2001-01-31

申请号：AU6263400

申请日：2000-06-15

Applicant: BASF AG

Inventor： ARLT ANDREAS ,  RODEWALD DIETER ,  KREYENSCHMIDT MARTIN ,  TESCH HELMUT

IPC: C08G18/20 ,  C08G18/48 ,  C08K5/15 ,  C08K5/3412 ,  C08L75/04 ,  C08J9/00

Abstract: The invention relates to polyurethane flexible foams which have a density ranging from 15 to 300 kg/m and which contain lactones, lactams and/or cyclic esters.

公开(公告)号：DE19919827A1

公开(公告)日：2000-11-02

申请号：DE19919827

申请日：1999-04-30

Applicant: BASF AG

Inventor： ARLT ANDREAS ,  RODEWALD DIETER ,  TESCH HELMUT

IPC: C08G18/08 ,  C08G18/18 ,  C08G18/83

Abstract: Production of polyisocyanate polyaddition products comprises reacting isocyanates with isocyanate-reactive compounds in the presence of a compound (I) capable of reacting with tertiary amines. Independent claims are also included for the following: (1) mixtures for preparing polyurethane polyaddition products (sic), comprising isocyanates or isocyanate-reactive compound and (I); (2) mixtures of isocyanates and (I); (3) polyisocyanate polyaddition products containing nitrogen bonded to carbon through four bonds.

公开(公告)号：DE19902802A1

公开(公告)日：2000-08-03

申请号：DE19902802

申请日：1999-01-25

Applicant: BASF AG

Inventor： KREYENSCHMIDT MARTIN ,  RODEWALD DIETER ,  LORENZ REINHARD ,  TISCHER GERLINDE

IPC: C08G18/12 ,  C08G18/48 ,  C08G18/76 ,  C08G18/32 ,  C08L75/04 ,  C08J9/00

Abstract: Polyurethane with a loss factor of 0.2-0.8 is based either on (a) a prepolymer obtained by reacting a polyisocyanate with a polyester polyol or polyether polyol with secondary hydroxyl group(s) and a molecular weight of 300-1200 or; (b) a polyol component containing other polyester polyol(s) or polyether polyol(s) with primary and secondary OH groups and a molecular weight of 300-1200. A process for the production of polyurethane (PU) with a loss factor of 0.2-0.8 involves bringing into contact (A) a component containing compound(s) which react with isocyanate and (B) a polyisocyanate component. In this system, either (1) component (B) is a prepolymer obtained by reacting a first polyester polyol or polyether polyol with at least one secondary hydroxyl group and a number-average molecular weight (MW) of 300-1200, or at least two of these, with an NCO group-containing compound, or; (2) component (A) contains other polyester polyol(s) or polyether polyol(s) with primary and secondary OH groups and MW of 300-1200. Independent claims are also included for (i) PU obtained by this process, with a loss factor of 0.2-0.8 and also with a natural frequency of 30-500 Hz and/or a dynamic elastic modulus of 1-50 N/cm ; (ii) a method for obtaining PU with a loss factor in the above range or also with at least one of the other properties in (i), by incorporating polyester polyol(s) or polyether polyol(s) with MW in the above ranges into the PU; (iii) formed articles containing PU as in (i).