公开(公告)号：US20220098383A1

公开(公告)日：2022-03-31

申请号：US17426539

申请日：2020-01-28

Applicant: BASF SE

Inventor： Bang Wei Xi ,  YingHao Liu ,  Wei Liang Chien ,  Jin Lin Liu ,  Bo Chen

IPC: C08J9/14 ,  C08G18/76 ,  C08G18/66 ,  C08G18/48 ,  C08G18/42 ,  C08G18/40 ,  C08G18/32

Abstract: Described herein is a method for preparing polyurethane foams, including (1) placing a reaction mixture into a pressurizable chamber, and (2) polymerizing the reaction mixture at an additional pressure, where the reaction mixture comprises an isocyanate, an isocyanate-reactive compound and a blowing agent, and the reaction mixture is placed into the pressurizable chamber at a packing factor of 2.0-4.0. Also described herein is a polyurethane foam prepared by such a method.