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. 19, 1986
Filed:
Jul. 13, 1984
Chantal Bonnans, Le Mans, FR;
Guy Levesque, Saint Mars sous Ballon, FR;
Societe Nationale Elf Aquitaine, Courbevoie, FR;
Abstract
The present invention relates to a process for the preparation of beads of copolymers bearing reactive groups, by polymerization in suspension in a non-aqueous medium. According to the invention a free radical polymerization is effected of at least two unsaturated monomers, of which one is the carrier of a reactive group such as acid chloride, alkyl chloride, alkyl dithiobenzoate or carboxyalkyl, in a medium composed of two emulsified, immiscible organic liquids, to form beads of chemically reactive copolymers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile