公开(公告)号：US3574803A

公开(公告)日：1971-04-13

申请号：US3574803D

申请日：1966-11-15

Applicant: CELANESE CORP

Inventor： ALLEN BRUCE B ,  RILEY JESSE L

IPC: A24D3/02 ,  B29C44/00 ,  C08J9/00 ,  C08L1/12 ,  B29D7/02 ,  C08B21/02 ,  C08B27/04 ,  C08B27/22 ,  C08B29/38

CPC classification number: B29C44/00 ,  A24D3/02 ,  C08J9/00 ,  C08J2301/00 ,  C08L1/12

Abstract: CELLULOSE ESTER FOAMS ARE PREPARED BY DISSOLVING AN INERT GAS UNDER PRESSURE INTO RIPENED CELLULOSE ESTER DOPE AT ITS INCIPIENT PRECIPITATION POINT AND PRECIPITATING THE CELLULOSE ESTER WHILE REDUCING TH PRESSURE ON SAID DOPE TO PRODUCE A SOLID FOAM.

公开(公告)号：US3538079A

公开(公告)日：1970-11-03

申请号：US3538079D

申请日：1968-05-14

Applicant: CELANESE CORP

Inventor： ALLEN BRUCE B ,  STEINMANN HENRY W

IPC: C08B3/00 ,  C08B3/14

CPC classification number: C08B3/14 ,  C08B3/00

公开(公告)号：US3071807A

公开(公告)日：1963-01-08

申请号：US84876759

申请日：1959-10-26

Applicant: CELANESE CORP

Inventor： LAUGHLIN KENNETH C ,  ALLEN BRUCE B

IPC: D01D5/06 ,  D01F2/28

CPC classification number: D01D5/06 ,  D01F13/02 ,  Y02P70/627