公开(公告)号：AU633111B2

公开(公告)日：1993-01-21

申请号：AU5803690

申请日：1990-06-29

Applicant: UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC.

Inventor： STANLEY LEE HAGER

IPC: C08J9/02 ,  C08G18/00 ,  C08G18/28 ,  C08G18/42 ,  C08G18/48 ,  C08G18/63 ,  C08G18/66 ,  C08G101/00

Abstract: A process for making low density and optionally low resilience, soft, flexible polyurethane slabstock foam having a substantially open cell structure without crushing, without requiring auxiliary inert blowing agents, by reacting under a condition which permits the foam to rise freely, a conventional hydroxyl-containing polyether polyol with a polyisocyanate at an isocyanate index of between about 60 and 95 in the presence of a foam processing aid comprising a low equivalent weight crosslinking agent and/or extending agent and, as needed, a cell opening agent.