Process for producing polymer alloy and polymer alloy

Details Process for producing polymer alloy and polymer alloy Process for producing polymer alloy and polymer alloy

C - Chemistry, Metallurgy

08

J

C08J 3/20 (2006.01) C08J 3/28 (2006.01) C08J 7/00 (2006.01) C08L 29/04 (2006.01) C08L 101/00 (2006.01)

Patent

CA 2725558

An object of the present invention is to provide a method for producing a polymer alloy which can provide a polymer alloy that can be, for example, defoamed or molded while maintaining its micro phase-separated structure. The method for producing a polymer alloy of the present invention includes at least: a step 1 of mixing two or more resins with a solvent, the two or more resins being immiscible with each other at an ordinary temperature and an ordinary pressure, the solvent being liquid or gaseous at an ordinary temperature and an ordinary pressure; a step 2 of heating and pressurizing the solvent into a high- temperature, high-pressure fluid or a supercritical fluid, and mixing the solvent in this state with the resins; a step 3 of restoring the mixture obtained in the step 2 to an ordinary temperature and an ordinary pressure; and a step 4 of irradiating the mixture obtained in the step 3 with ionizing radiation.

L'invention porte sur un procédé pour la fabrication d'un alliage de polymère, dans lequel une désaération, un moulage, etc. peuvent être effectués tout en conservant une structure de séparation de phases microscopique. Le procédé pour la fabrication d'un alliage de polymère comprend au moins l'étape (1) consistant à mélanger au moins deux types de résines qui sont incompatibles l'une avec l'autre à température ordinaire/pression ordinaire avec un solvant qui est liquide ou gazeux à température ordinaire/pression ordinaire ; l'étape (2) consistant à chauffer et mettre sous pression le solvant pour le transformer en un fluide à haute température/haute pression ou un fluide supercritique et effectuer le mélange dans cet état ; l'étape (3) consistant à remettre le mélange obtenu à l'étape (2) à température ordinaire/pression ordinaire ; et l'étape (4) consistant à irradier le mélange obtenu à l'étape (3) avec un rayonnement ionisant.

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