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:
Aug. 17, 2010
Filed:
Feb. 05, 2007
Tadashi Ino, Osaka, JP;
Tadaharu Isaka, Osaka, JP;
Masahiro Kondo, Osaka, JP;
Masanori Ikeda, Fuji, JP;
Nobuyuki Uematsu, Fuji, JP;
Takehiro Koga, Kawasaki, JP;
Tadashi Ino, Osaka, JP;
Tadaharu Isaka, Osaka, JP;
Masahiro Kondo, Osaka, JP;
Masanori Ikeda, Fuji, JP;
Nobuyuki Uematsu, Fuji, JP;
Takehiro Koga, Kawasaki, JP;
Daikin Industries, Ltd., Osaka, JP;
Asahi Kasei E-Materials Corporation, Tokyo, JP;
Abstract
The present invention provides a novel production process by which unstable terminal groups can be sufficiently stabilized under mild conditions. The present invention is related to a method for producing an —SOH group-containing fluoropolymer wherein a fluoropolymer to be treated having a —SOX group-containing monomer unit (X representing F or Cl) is subjected to a procedure comprising at least the steps A, B and C defined below in that order: