Process for producing a low dust transparent thermoplastic...

C - Chemistry – Metallurgy – 08 – J

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400/3012, 400/70

C08J 3/00 (2006.01) B01D 21/26 (2006.01) C08F 6/06 (2006.01) C08G 65/46 (2006.01) C08G 85/00 (2006.01) G02B 1/04 (2006.01)

Patent

CA 1304181

MO-9-44483C/HO/87 ABSTRACT OF THE DISCLOSURE A process for producing a low-dust transparent thermoplastic resin solution, which comprises centrifuging a solution of a transparent thermoplastic resin optionally containing pure water to separate it into a resin solution phase and an aqueous phase, and separating the resin solu- tion phase from the aqueous phase and the interface between them. By this process, the number of dusts having a size of at least 0.5 m in the resin solution can be decreased to 10,000 or less, preferably substantially zero, per gram of the transparent thermoplastic resin.

527796

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