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. 20, 2002
Filed:
Feb. 26, 2001
Olivier Anthony, Enghien les Bains, FR;
Cécile Bonnet-Gonnet, Paris, FR;
Mathias Destarac, Paris, FR;
Roya Farhoosh, Paris, FR;
Mathieu Joanicot, Lawrenceville, NJ (US);
Gilda Lizarraga, Cranbury, NJ (US);
Roland Reeb, Gressy, FR;
Jean-Marie Schwob, Noisi le Roi, FR;
Rhodia Chimie, Boulogne Billancourt Cedex, FR;
Abstract
The invention relates to water-soluble block copolymers comprising at least one block of hydrophobic nature and at least one block of hydrophilic nature, the block of hydrophobic nature exhibiting hydrophilic units in an amount of between 33% and 99% by weight with respect to the total weight of the units of the hydrophobic block. These copolymers are preferably diblocks or triblocks and are prepared by a polymerization process referred to as a living or controlled. Control of their hydrophilic-lipophilic balance makes it possible to adjust their solubility in water and their self-association properties. These copolymers can be used in particular as adhesion agents or wetting agents.