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公开(公告)号：US3558762A
公开(公告)日：1971-01-26
申请号：US3558762D
申请日：1969-03-03
Applicant: BASF AG
Inventor： KOEHNLEIN ERNST , BAUER PETER , STANGE KARL
CPC classification number: B29C47/0009 , B29C47/0026
Abstract: A PROCESSS FOR THE PRODUCTION OF SHEETING OR FILM WHEREIN A MIXTURE IS PREPARED FROM (A) A POLYISOBUTYLENE, (B) AN ETHYLENE POLYMER, (C) A FILLER, (D) A CARBON BLACK AND (E) A SLIP ADDITIVE AT ELEVATED TEMPERATURE AND THIS MIXTURE, WHILE STILL HOT, IS SUPPLIED TO AN EXTRUDER AND SHAPED INTO TUBULAR SHEETING AND FILM AT ELEVATED TEMPERATURE.
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