A CONTINUOUS PROCESS FOR MAKING UNIFORM SMALL CELL FOAMS
摘要
A continuous method for making foams having uniform and/or small cell sizes and articles made with these foams are described. The method allows for adjusting or controlling cell size and cell size distribution by controlling temperature and/or blowing agent concentration. The foams feature small and/or uniform cell sizes and may be comprised of amorphous thermoplastic polymers, pressure sensitive adhesive compositions, and immiscible thermoplastic polymer compositions. A method for coextruding the foams is also described.
申请公布号
EP1173318(A1)
申请公布日期
2002.01.23
申请号
EP20000921484
申请日期
2000.03.27
申请人
3M INNOVATIVE PROPERTIES COMPANY
发明人
GEHLSEN, MARK, D.;VALL, DAVID, L.;PERMAN, CRAIG, A.;ALBRECHT, BONNIE, W.