Molding material, process for producing molded article, and molded article
AssigneeIdemitsu Petrochemical Co., Ltd.
InventorsTakuma Aoyama, Akihiko Okada
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AssigneeIdemitsu Petrochemical Co., Ltd.
InventorsTakuma Aoyama, Akihiko Okada
Estimating the term…
There are disclosed a molding material which is used for molding a styrenic polymer and which is capable of affording moldings that are excellent in solvent resistance and mechanical strength even when produced at a molding temperature almost same as that of ordinary atactic polystyrene, namely at a resin temperature of 260° C. or lower, dispensing with a melt kneading step; a process for producing a molding by molding the above molding material, which process enables to shorten molding cycle time and curtail the producton cost; and the moldings produced thereby. The molding material comprises a dry blend of 10 to 95% by weight of a (A) styrenic polymer having atactic configuration and 2 to 90% by weight of a (B) styrenic polymer having a melting point of 250° C. or lower, a weight average molecular weight of at most 200,000 and mainly syndiotactic configuration.
A molding material, comprising a dry blend of 10 to 95% by weight of a (A) styrenic polymer having atactic configuration and 2 to 90% by weight of a (B) styrenic polymer having a melting point of 250° C. or lower, a weight average molecular weight of at most 200,000 and mainly syndiotactic configuration
A process for producing a molding comprising molding a molding material at a resin temperature of 260° C. at the highest, wherein
Dependencies are inferred from the claim text.