公开(公告)号：US20200368978A1

公开(公告)日：2020-11-26

申请号：US16955462

申请日：2018-12-11

Applicant: BASF SE

Inventor： Georg Partusch ,  Juergen Schneider ,  Gerd Westermann ,  Klaus Schmutzer

IPC: B29C70/34 ,  B32B7/12 ,  B32B37/12 ,  B29C70/08 ,  B32B3/12 ,  B32B5/02 ,  B32B15/14 ,  B32B27/12 ,  B32B29/02 ,  B32B37/14 ,  C09J175/08 ,  C09J5/00 ,  C08G18/76 ,  C08G18/48 ,  C08G18/10

Abstract: Described herein is a process for producing polyurethane sandwich moldings including at least one core layer and at least one reinforcing fiber layer, where (i) at least one reinforcing fiber layer is applied onto a core layer and a moisture-curing polyurethane adhesive is applied to a reinforcing fiber layer, (ii) the part from (i) is placed into a mold and pressed in the mold and the moisture-curing polyurethane adhesive is cured, and (iii) the molding from (ii) is removed from the mold and optionally subjected to further operations, where the moisture-curing polyurethane adhesive is applied before or after application of the reinforcing fiber layer onto the at least one core layer and for the curing the moisture-curing polyurethane adhesive is brought into contact with water or with a solution comprising water. Also described herein are a polyurethane sandwich molding obtainable by such a process and a method of using a polyurethane sandwich molding in vehicles.

公开(公告)号：US10196493B2

公开(公告)日：2019-02-05

申请号：US15100777

申请日：2014-11-27

Applicant: BASF SE

Inventor： Iran Otero Martinez ,  Georg Partusch ,  Christian Hagen

IPC: C08J9/00 ,  C08G18/28 ,  C08G18/08 ,  C08G18/48 ,  C08G18/72 ,  C08G101/00

Abstract: The present invention relates to a process for the production of polyurethanes where (a) polyisocyanate, (b) polymeric compounds having groups reactive toward isocyanates, (c) catalysts, (d) a CH-acidic compound of the general formula R1—CH2—R2, where R1 and R2 independently of one another are an electron-withdrawing moiety of the general formula —C(O)—R3 or —CN, where the moiety R3 is selected from the group consisting of —NH2, —NH—R4—NR5R6, OR7 or R8, where R4, R5, R6, R7, and R8 are independently selected from the group consisting of aliphatic, araliphatic or aromatic hydrocarbons, which may have substitution, and optionally (e) blowing agent, (f) chain extender and/or crosslinking agent, and (g) auxiliaries and/or additives are mixed to give a reaction mixture, and the reaction mixture is allowed to complete a reaction to give the polyurethane. The present invention further relates to polyurethanes produced by this process and to the use of these polyurethanes in the interior of means of transport.