C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/20 (2006.01) C08J 3/00 (2006.01) C08J 5/18 (2006.01) C08L 101/00 (2006.01)
Patent
CA 2463793
A method for producing a polymer alloy which comprises a step (1) of admixing two or more types of resin being incompatible with one another and a solvent being liquid or solid at least at ordinary temperature under ordinary pressure, a step (2) of heating and pressurizing the solvent into a high temperature high pressure fluid or a supercritical fluid and mixing them at this state, and a step (3) of rapidly cooling the mixture formed in the step (2) to a temperature lower than the glass transition temperature of the resin without releasing the pressure; a polymer alloy produced by the method; and a formed article, a transparent formed article and an optical film comprising the polymer alloy.
L'invention concerne un procédé de production d'un alliage polymère qui consiste (1) à mélanger au moins deux types de résines incompatibles entre elles et un solvant liquide ou solide à au moins une température et une pression ordinaires; (2) à chauffer et à mettre sous pression le solvant dans un fluide haute température haute pression ou un fluide supercritique et à les mélanger dans cet état; et (3) à refroidir rapidement le mélange formé en (2) à une température inférieure à la température de transition vitreuse de la résine sans libération de la pression. L'invention concerne en outre un alliage polymère produit selon ce procédé, un article formé, un article formé transparent et un film optique renfermant l'alliage polymère.
Morita Takeharu
Nishimura Youhei
Tada Toshio
Toyoshima Katsunori
Morita Takeharu
Nishimura Youhei
Riches Mckenzie & Herbert Llp
Sekisui Chemical Co. Ltd.
Tada Toshio
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