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:
Dec. 15, 1992
Filed:
May. 28, 1991
Applicant:
Inventors:
Nobuyuki Tomihashi, Settsu, JP;
Ryuji Iwakiri, Settsu, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526247 ; 526249 ; 526255 ;
Abstract
A fluorine-containing copolymer for paints, having Mn of 5000 to 50000 and Mw/Mn of 2 to 10, which consists essentially of 30 to 70% by mole of the fluoroolefin unit, 15 to 45% by mole of the vinyl ether or vinyl ester unit, 1 to 30% by mole of the hydroxyalkyl vinyl ether unit, and 4 to 30% by mole of the carboxyl-containing unit wherein the carboxyl group is neutralized in an amount of 30% or more with ammonia or a tertiary amine. This copolymer can give a god coating film without water spots and dewetting as well as with a good levelling property, while maintaining the excellent properties which a fluorine resin has be nature.