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US3847881A Stress-crack resistant ethylene-perhaloethylene copolymers 失效
抗应力乙烯 - 邻苯二甲酸乙二醇酯共聚物

Stress-crack resistant ethylene-perhaloethylene copolymers
Abstract:
1. SOLID COPOLYMERS OF FROM ABOUT 40 TO 60 MOL PERCENT OF WTHYLENE, FROM ABOUT 40 TO 60 MOL PERCENT OF HALOGENATED COMONOMER SELECTED FROM THE GROUP CONSISTING OF TETRAFLUOROETHYLENE, CHLOROTRIFLUOROETHYLENE AND MIXTURES THEREOF AND FROM 0.1 TO 10 MOL PERCENT, BASED ON THE MOLS OF HALOENATED COMONOMER, OF 3,3,3-TRIFLUORO-2-TRIFLUOROMETHYL PROPENE.
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