公开(公告)号：US10723828B2

公开(公告)日：2020-07-28

申请号：US16300670

申请日：2017-05-02

Applicant: BASF SE

Inventor： Heinz-Dieter Lutter ,  Manuela Faehmel ,  Kirsten Simon ,  Claudio Petrini

IPC: C08G18/12 ,  C08G18/76 ,  C08G18/48 ,  C08G18/18 ,  C08G18/20 ,  C08G101/00 ,  C08G18/08

Abstract: Described herein is a process for producing flexible polyurethane foams, in which (a) polyisocyanate prepolymer, is mixed with (b) polymeric compounds having groups reactive toward isocyanates, (c) optionally chain extenders and/or crosslinkers, (d) catalyst, (e) blowing agent comprising water and (f) optionally additives to give a reaction mixture and reacted to give a flexible polyurethane foam.

公开(公告)号：US20210395431A1

公开(公告)日：2021-12-23

申请号：US17288026

申请日：2019-10-23

Applicant: BASF SE

Inventor： Markus Schuette ,  Heinz-Dieter Lutter ,  Manuela Faehmel ,  Marc Claude Martin ,  Peter Deglmann ,  Joern Duwenhorst

IPC: C08G18/08 ,  C08G18/38 ,  C08G18/24 ,  C08G18/16 ,  C08G18/18 ,  C08G18/20 ,  C08G18/48

Abstract: Described herein is a process for producing polyurethane foams having a density of 30 g/dm3 to 70 g/dm3, in which (a) aromatic polyisocyanate is mixed with (b) polymeric compounds having isocyanate-reactive groups, (c) optionally chain extender and/or crosslinking agent, (d) catalyst, (e) blowing agent including water, (f) 0.1% to 5% by weight of lactam, and (g) optionally additives, at an isocyanate index of 50 to 95 to form a reaction mixture, and the reaction mixture is converted to the polyurethane foam, wherein the catalyst includes metal catalyst and amine catalyst, and the amine catalyst has tertiary nitrogen atoms and the content of tertiary nitrogen atoms in the amine catalyst is from 0.0001 to 0.003 mol/100 g of foam. Also described herein is a polyurethane foam and a method of using such a flexible polyurethane foam for the production of cushions, seat cushions, or mattresses.

公开(公告)号：US20190177463A1

公开(公告)日：2019-06-13

申请号：US16300670

申请日：2017-05-02

Applicant: BASF SE

Inventor： Heinz-Dieter Lutter ,  Manuela Faehmel ,  Kirsten Simon ,  Claudio Petrini

IPC: C08G18/12 ,  C08G18/18 ,  C08G18/20 ,  C08G18/48 ,  C08G18/76

Abstract: Described herein is a process for producing flexible polyurethane foams, in which (a) polyisocyanate prepolymer, is mixed with (b) polymeric compounds having groups reactive toward isocyanates, (c) optionally chain extenders and/or crosslinkers, (d) catalyst, (e) blowing agent comprising water and (f) optionally additives to give a reaction mixture and reacted to give a flexible polyurethane foam