公开(公告)号：US3584089A

公开(公告)日：1971-06-08

申请号：US3584089D

申请日：1969-09-12

申请人： CELANESE CORP

发明人： KUNKEL ROLAND KEITH ,  MUNRO JOHN GALVIN

IPC分类号： C08J11/06 ,  D01F2/28 ,  D01F8/02 ,  B29H19/00

CPC分类号： C08J11/06 ,  C08J2301/10 ,  D01F8/02 ,  Y02W30/701

摘要： METHOD OF UTILIZING "WASTE" CELLULOSE TRIACRETATE-SECONDARY CELLULOSE ACETATE MULTICOMPONENT FILAMENTARY MATERIAL IN PRODUCING A MULTICOMPONENT FILAMENTARY MATERIAL. INVOLVES INJECTING INTO DOPE STREAM OF SECONDARY CELLULOSE ACETATE A SOLUTION OF "WASTE" MULTICOMPONENT FILAMENTARY MATERIAL OF CELLULOSE TRIACETATE AND SECONDARY CELLULOSE ACETATE, CONTRACTING THE SO-MODIFIED CELLULOSE ACETATE DOPE STREAM WITH A DOPE STREAM OF CELLULOSE TRIACETATE TO FORM A COMPOSITE STREAM, PASSING THE COMPOSITE DOPE STREAM BY LAMINAR FLOW TO A JET, AND EXTRUDING THE COMPOSITE DOPE STREAM THROUIGH THE JET TO FORM MULTICOMPONENT FILAMENTARY MATERIAL. THEREAFTER MAY SELECTIVELY SAPONIFY SO AS TO REGENERATE CELLULOSE FROM THE CELLULOSE ACETATE, RESULTING IN MULTICOMPONENT FILAMENTS OF CELLULOSE TRIACETATE AND REGENERATED CELLULOSE.