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. 29, 1991
Filed:
Sep. 26, 1989
Fumikatsu Takeuchi, Sayama, JP;
Tsutomu Takeuchi, Sayama, JP;
Noriyuki Osaka, Sayama, JP;
Yoichi Takizawa, Sayama, JP;
Susumu Kawase, Sayama, JP;
Soken Kagaku Kabushiki Kaisha, Tokyo, JP;
Abstract
A graft copolymer having dispersion stabilizing effect, which comprises on the carbon backbone thereof a polymer side chain comprising a carbon chain having a molecular weight of 1,000.about.100,000, a fluorine atom containing fluorine side chain and a hydrophilic side chain containing a hydrophilic group, the total mean molecular weight of said graft copolymer being 5,000 or more. The graft copolymer of this invention can be used as an excellent dispersion stabilizer for emulsion polymerization, whereby in emulsion polymerization it is possible to attain polymer particle dispersion stability to ensure that the polymer particles will not be agglomerated even if they have been grown to larger particles having a diameter of 0.5.mu. or more and that dispersion of the polymer particles having a large and uniform particle diameter is obtained.