公开(公告)号：US20190153187A1

公开(公告)日：2019-05-23

申请号：US16099897

申请日：2017-05-18

Applicant: BASF SE

Inventor： Gianpaolo Tomasi ,  Ludwig Windeler ,  Gunnar Kampf ,  Ulrich Gaukesbrink

IPC: C08J9/14 ,  C08G18/42 ,  C08G18/50 ,  C08G18/48 ,  C08G18/40 ,  C08G18/76 ,  C08G18/22 ,  C08G18/18 ,  C08G18/16 ,  C08K5/521 ,  C08J9/00 ,  F16L59/00

Abstract: Provided herein is a process for preparing a rigid polyisocyanurate foam including reacting a composition (A) including a polyesterol, a blowing agent including formic acid, a catalyst system including at least one trimerization catalyst and at least one polyisocyanate as component (B), wherein composition (A) further includes at least one polyether alcohol prepared by addition of alkylene oxides to toluenediamine. Further provided herein is a rigid polyisocyanurate foam obtained through the process described herein and the use of said rigid polyisocyanurate foam as insulating material.