公开(公告)号：US3692602A

公开(公告)日：1972-09-19

申请号：US3692602D

申请日：1969-06-23

申请人： TOYO RAYON CO LTD

发明人： OKADA HIROSHI ,  OSAKADA ATSUSHI ,  MINAMI SATOYUKI ,  AOKI TOSHIKAZU ,  HISAMORI TETSUO ,  KOYANAGI HIRONOBU ,  OTSUKA HIROMI

IPC分类号： B32B27/00 ,  C08J9/06 ,  C08J9/34 ,  B32B5/20

CPC分类号： B32B27/065 ,  B32B5/18 ,  B32B27/00 ,  B32B27/26 ,  B32B27/304 ,  B32B27/32 ,  B32B2266/0235 ,  B32B2266/025 ,  B32B2305/72 ,  B32B2309/105 ,  C08J9/06 ,  C08J9/34 ,  Y10S264/05 ,  Y10S264/16 ,  Y10S264/18

摘要： A PROCESS FOR MAKING THERMOPLASTIC RESIN FOAM COMPRISING FORMING A LAMINATE COMPRISED OF A SHEET OF FOAMABLE THERMOPLASTIC INTERPOSED BETWEEN AND BONDED TO OUTER THERMOPLASTIC RESIN FILMS. WHEN THE LAMINATE IS HEATED, A FOAM PRODUCT IS FORMED WHICH, BECAUSE THE OUTER FILMS LIMIT THE ESCAPE OF FOAMING GAS, MAY BE THINNER AND/OR HAVE HIGHER EXPANSION RATIOS THAN THERMOPLASTIC RESIN FOAMS HERETOFORE PRODUCIBLE BY ANY OTHER ATMOSPHERIC PROCESS.