发明授权
US4041003A Process for molding aromatic polycarbonates having perfluoroalkanesulphonic acid derivatives as mold release agents 失效
用于模塑具有全氟烷基磺酸衍生物的芳族聚碳酸酯作为脱模剂的方法

Process for molding aromatic polycarbonates having
perfluoroalkanesulphonic acid derivatives as mold release agents
摘要:
The present invention is concerned with a process for molding thermoplastic, high molecular weight aromatic polycarbonates the improvement which comprises adding to the aromatic polycarbonate from about 0.001 to 1% by weight of a mold release agent selected from the group consisting of perfluoroalkanesulphonic acid amides, cyclimmonium salts of perfluoroalkanesulphonic acids and ammonium salts of perfluoroalkanesulphonic acids.
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