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:
Feb. 22, 2005
Filed:
Sep. 19, 2001
Applicants:
Mitsuo Tsukamoto, Settsu, JP;
Masao Otsuka, Settsu, JP;
Mitsuhiro Otani, Settsu, JP;
Tatsuya Morikawa, Settsu, JP;
Hideya Saito, Settsu, JP;
Inventors:
Mitsuo Tsukamoto, Settsu, JP;
Masao Otsuka, Settsu, JP;
Mitsuhiro Otani, Settsu, JP;
Tatsuya Morikawa, Settsu, JP;
Hideya Saito, Settsu, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C017/266 ; C07C021/18 ;
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for preparing an elastomeric ethylene-hexafluoropropylene copolymer with excellent vulcanization properties, which comprises emulsion polymerizing ethylene, hexafluoropropylene and when in demand, a monomer copolymerizable therewith in a aqueous medium at a low temperature of −20° C. to 40° C. using a radical polymerization initiator.