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method of preparing modified vinylidene fluoride hexafluoroisobutylene / copolymeres has characteristics of processing improved and new products thus obtained
method of preparing modified vinylidene fluoride hexafluoroisobutylene / copolymeres has characteristics of processing improved and new products thus obtained
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机译:改性偏二氟乙烯六氟异丁烯共聚物的制备方法,具有加工性能提高的特点,从而得到新产品
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摘要
This invention provides 3,3,3-trifluoro-2-trifluoromethyl propene/1,1-difluoroethylene copolymers additionally containing from about 0.1 to 30 mol percent of perhalogenated monomer selected from the group consisting of tetrafluoroethylene, chlorotrifluoroethylene and mixtures thereof, and method for making them. Addition of the perhalogenated monomer reduces melting point and crystallization temperature of the copolymer, thereby improving its melt processing characteristics, without seriously deteriorating its good mechanical properties and chemical resistance.
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