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:
May. 30, 1978
Filed:
Oct. 01, 1976
Shojiro Ito, Niihama, JA;
Toshiyuki Kobashi, Okayama, JA;
Yasuhiro Kitagawa, Okayama, JA;
Katsumi Kunikata, Okayama, JA;
Japan Exlan Company, Limited, Osaka, JA;
Sumitomo Chemical Company, Limited, Osaka, JA;
Abstract
Process for the production of a stable polymer emulsion by polymerizing a radical-polymerizable monomer having an unsaturated bond in the presence of a water-soluble polymer containing monomer units consisting essentially of an ethylenically unsaturated carboxylic acid or salts thereof, and an ethylenically unsaturated sulfonic acid or a salt thereof and an anionic surface active agent. This polymerization takes place in an aqueous medium at a pH not higher than 4 in the presence of a water-soluble catalyst. The polymer emulsion of the present invention is much more stable chemically and mechanically than conventional polymer emulsions and the polymers produced by applicants' process have an extremely small particle size making the emulsions immediately suitable for a variety of purposes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile