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:
Sep. 06, 2005
Filed:
Dec. 04, 2002
Applicants:
Ramon Valls, Barcelona, ES;
Jaim Tuduri, Barcelona, ES;
Rafael Pi Subirana, Granollers, ES;
Inventors:
Assignee:
Cognis Iberia S.L., Barcelona, ES;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F218/16 ; C08F222/02 ; C08F222/16 ;
U.S. Cl.
CPC ...
Abstract
Anionic polymers obtainable by: (a) esterifying maleic acid or its anhydride with alkyl polyalkylene glycols; (b) copolymerizing the esters obtained with (meth)acrylic acid; and (c) converting the polymers obtained into the salt form by addition of alkali metal bases; are disclosed.