公开(公告)号：US20200231737A1

公开(公告)日：2020-07-23

申请号：US16489744

申请日：2018-03-07

Applicant: BASF SE

Inventor： Amir Doroodian ,  Marco Ortalda ,  Cristian Baravalle ,  Robert Frenzel

IPC: C08G18/42 ,  C08G18/10 ,  C08G18/18 ,  C08G18/48 ,  C08G18/24 ,  A43B1/14

Abstract: Disclosed is a process for producing polyurethane boots. The method includes mixing organic polyisocyanates with a combination of polyols, a chain extender, a blowing agent, a catalyst, and optionally other auxiliaries and/or additives. The resulting reaction mixture is introduced, in only one injection, into a mold including a sole and an upper of the mold and allowed to react to form a polyurethane boot. At least one catalyst including a tertiary amine and sebacic acid is employed in a molar ratio of 1:0.19 to 0.27.