公开(公告)号：US3582502A

公开(公告)日：1971-06-01

申请号：US3582502D

申请日：1968-12-06

Applicant: NALCO CHEMICAL CO

Inventor： FARROW JAMES E ,  VOSSOS PETER H

IPC: C08J9/40 ,  C08D13/08 ,  C08F47/08

CPC classification number: C08J9/40 ,  C08J2201/038 ,  C08J2321/00 ,  Y10T428/249986 ,  Y10T428/259

Abstract: THE COMPRESSION RESISTANCE OF OPEN CELL FOAM RUBBER IS IMPROVED BY TREATING THE FINISHED FOAM RUBBER WITH AN AQUEOUS METAL-FREE SOLUTION OF ACTIVE SILICA, WHOSE PARTICLE SIZE DOES NOT EXCEED 5 MU.