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：US20140248813A1

公开(公告)日：2014-09-04

申请号：US14196351

申请日：2014-03-04

Applicant: BASF SE

Inventor： Patrick BOLZE ,  Lars Goedke ,  Franz Xaver Redl ,  Gerd Westermann

IPC: C08G18/78 ,  C09D175/08

CPC classification number: C08G18/7831 ,  C08G18/6677 ,  C09D175/08 ,  Y10T428/31551 ,  Y10T428/31591 ,  Y10T428/31601 ,  Y10T442/2984 ,  Y10T442/2992

Abstract: The present invention relates to processes for preparing compact transparent polyurethanes by mixing (a) isocyanates with (b) compounds having at least two isocyanate-reactive groups, (c) catalysts, and optionally (d) auxiliaries and additives to give a reaction mixture and carrying out reaction to the compact transparent polyurethanes, the isocyanates (a) comprising at least 50 wt % of biurets of hexamethylene diisocyanate. The present invention further relates to a compact, transparent polyurethane prepared by a process of the invention, and to the use of such a compact, transparent polyurethane as a surface coating, more particularly in the interior of means of transport.

Abstract translation: 本发明涉及通过混合（a）异氰酸酯与（b）具有至少两个异氰酸酯反应性基团的化合物，（c）催化剂和任选的（d）助剂和添加剂来制备紧密透明聚氨酯的方法，得到反应混合物和 对紧凑的透明聚氨酯进行反应，所述异氰酸酯（a）包含至少50重量％的六亚甲基二异氰酸酯的缩二脲。 本发明还涉及通过本发明的方法制备的紧凑的透明聚氨酯，以及使用这种紧凑的透明聚氨酯作为表面涂层，更特别地在运输工具的内部。