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1.发明授权Novel polytetrafluoroethylene prepared in the presence of a fluoroalkanoic acid salt dispersing agent and octafluorocyclobutane 失效在氟代酸性分散剂和OCTAFLUOROCYCLOBUTANE存在下制备的新型聚四氟乙烯
公开(公告)号：US3752796A
公开(公告)日：1973-08-14
申请号：US3752796D
申请日：1970-11-19
Applicant: ALLIED CHEM
Inventor： MUELLER M , SALATIELLO P , SAWHNEY D
CPC classification number: C08J3/12 , C08F6/20 , C08J2327/18 , Y10S526/909 , Y10S526/911
Abstract: PARTICULATE POLYTETRAFLUOROETHYLENE DISPERSION RESIN CHARACTERIZED BY HIGH MOLECULAR WEIGHT, RELATIVELY LARGE PARTICLE SIZE, UNIFORM SPHERICAL PARTICLE SHAPE AND NARROW PARTICLE SIZE DISTRIBUTION, WHICH IS SUITABLE FOR MAKING STABLE CONCENTRATED AQUEOUS POLYTETRAFLUOROETHYLENE DISPERSIONS OF CONCENTRATIONS HIGHER THAN HERETOFORE AVAILABLE, IS MADE BY POLYMERIZATION OF TETRAFLUOROETHYLENE IN AQUEOUS DISPERSION IN THE CONJOINT PRESENCE OF LIQUID OCTAFLUOROCYCLOBUTANE AND CERTAIN POLYFLUORINATED CARBOXYLIC ACID SALT DISPERSING AGENTS, USING WATER-SOLUBLE PEROXIDE INITIATORS.
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