Method for producing low-molecular weight polytetrafluoroethylene, and powder

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12227608
APP PUB NO 20220127391A1
SERIAL NO

17571031

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Abstract

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A method for producing low-molecular-weight polytetrafluoroethylene which includes: (1) irradiating high-molecular-weight polytetrafluoroethylene with radiation to a dose of 250 kGy or higher substantially in the absence of oxygen to provide low-molecular-weight polytetrafluoroethylene having a melt viscosity at 380° C. of 1.0×102 to 7.0×105 Pa·s. Also disclosed is a powder containing the low-molecular-weight polytetrafluoroethylene, the powder being substantially free from any of perfluorooctanoic acid and salts thereof.

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Patent Owner(s)

  • DAIKIN INDUSTRIES, LTD.; OSAKA UNIVERSITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Higashi, Chisato Osaka, JP 1 0
Masuda, Eiji Osaka, JP 63 655
Nakano, Yasuhiro Osaka, JP 51 204
Oshima, Akihiro Suita, JP 23 183
Shimodo, Akira Osaka, JP 2 0
Tsuji, Masayuki Osaka, JP 136 895

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