The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2006
Filed:
Oct. 23, 2002
Katsunori Toyoshima, Mishima-gun, JP;
Takeharu Morita, Mishima-gun, JP;
Toshio Tada, Mishima-gun, JP;
Youhei Nishimura, Mishima-gun, JP;
Katsunori Toyoshima, Mishima-gun, JP;
Takeharu Morita, Mishima-gun, JP;
Toshio Tada, Mishima-gun, JP;
Youhei Nishimura, Mishima-gun, JP;
Seikisui Chemicals Co., Ltd., Osaka, JP;
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 stepof 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 stepof 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 stepof cooling the mixture obtained in said steprapidly to the glass transition temperature or less without releasing the pressure of the mixture.