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:
Jan. 07, 2025
Filed:
Apr. 27, 2020
Applicant:
Daikin Industries, Ltd., Osaka, JP;
Inventors:
Satoru Yoneda, Osaka, JP;
Masahiro Higashi, Osaka, JP;
Sumi Ishihara, Osaka, JP;
Hirotoshi Yoshida, Osaka, JP;
Yohei Fujimoto, Osaka, JP;
Yosuke Kishikawa, Osaka, JP;
Assignee:
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J 3/05 (2006.01); C08F 114/26 (2006.01);
U.S. Cl.
CPC ...
C08J 3/05 (2013.01); C08F 114/26 (2013.01); C08J 2327/18 (2013.01);
Abstract
A method for producing a fluoropolymer aqueous dispersion, including a step A of subjecting a pre-treatment aqueous dispersion containing a fluoropolymer obtained by polymerization in the presence of a hydrocarbon surfactant to ultrafiltration, microfiltration, or dialysis membrane treatment, or a combination thereof. The ultrafiltration is performed using an ultrafiltration membrane having a molecular weight cutoff of 0.3×10Da or more.