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:
Nov. 30, 2004
Filed:
Sep. 12, 2002
Applicant:
Inventors:
Martine Cerf, Breuil Magne, FR;
Karine Triballier, Bernay, FR;
Françoise Benard, Corneville la Fouquetiere, FR;
Assignee:
ATOFINA, Elf Atochem, S.A., , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/32 ; C08F 4/04 ;
U.S. Cl.
CPC ...
C08F 2/32 ; C08F 4/04 ;
Abstract
The invention concerns a water-in-oil polymer emulsion containing in an organic and continuous phase practically non-miscible in water, finely comminuted water soluble polymers or capable of being swollen in water, a water-in-oil emulsifying agent and optionally wetting agents. The invention also concerns a method for preparing said emulsion. More particularly, it concerns a method for invert emulsion in the presence of one or several initiators belonging a specific family of azacarboxylic acid esters.