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. 08, 2005
Filed:
Mar. 11, 2004
Isabelle Betremieux, Coye la Foret, FR;
Karine Loyen, Pont-Audemer, FR;
Nathalie Meeschaert, Serquigny, FR;
Pierre Nogues, Bernay, FR;
Martine Schneider, Lyons, FR;
Isabelle Betremieux, Coye la Foret, FR;
Karine Loyen, Pont-Audemer, FR;
Nathalie Meeschaert, Serquigny, FR;
Pierre Nogues, Bernay, FR;
Martine Schneider, Lyons, FR;
Atofina, Puteaux, FR;
Abstract
A process is presented for the preparation of a latex by the emulsion polymerization at a temperature of between 30 and 90 C. of at least one ethylenically unsaturated monomer in the presence of at least one surfactant and of a seed of polymer particles with a diameter of between 200 and 450 nm. The seed particles represent from 5-25% by weight of the total weight of the monomer and seed. The polymerization is initiated by a mixed water-soluble/fat-soluble system. Also included are lattices obtained from this process.