Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Reexamination Certificate
2006-10-31
2006-10-31
Boykin, Terressa (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
C264S176100, C264S219000, C359S642000, C528S481000, C528S482000, C528S483000, C528S484000, C528S486000
Reexamination Certificate
active
07129322
ABSTRACT:
This invention provides a method for producing a polymer alloy, a polymer alloy as well as a molded article, a transparent molded article and an optical film, which is obtainable by using the polymer alloy.The invention is a method for producing a polymer alloy, which comprises at least: a step1of mixing two or more resins incompatible with each other at ambient temperature and pressure with a solvent being in a liquid or gas state at ambient temperature and pressure; a step2of heating and applying pressure to said solvent into a high-temperature and high-pressure fluid or a supercritical fluid and mixing the solvent in this state; and, a step3of cooling the mixture obtained in said step2rapidly to the glass transition temperature or less without releasing the pressure of the mixture.
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Morita Takeharu
Nishimura Youhei
Tada Toshio
Toyoshima Katsunori
Boykin Terressa
Seikisui Chemicals Co., Ltd.
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