Improved method for producing comb polymers by adding an antioxidant, resulting polymers and uses thereof

Amelioration d'un procede de fabrication de polymeres peignes par ajout d'un antioxydant, polymeres obtenus et leurs applications

Abstract

L'invention reside dans Ia mise en ceuvre d'un antioxydant au cours de Ia reaction de fonctionnalisation d'un polymere (meth)acrylique a l'etat sec par des groupements lateraux polyoxyalkyles, de maniere a ameliorer Ie taux de greffage du polymere final. Les polymeres obtenus constituent un autre objet de l'invention, de meme que les formulations aqueuses qui les contiennent.
The invention lies in the use of an antioxidant during the reaction for functionalization of a (meth)acrylic polymer in the dry state with polyoxyalkyl side groups, so as to improve the degree of grafting of the final polymer. The resulting polymers constitute another subject matter of the invention, as do the aqueous formulations which contain them.

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Patent Citations (3)

    Publication numberPublication dateAssigneeTitle
    FR-2900930-A1November 16, 2007Coatex SasProcede de fabrication de polymeres peigne par sechage puis fonctionnalisation de la chaine principale (meth)acrylique, polymeres obtenus et leurs utilisations
    US-2002132946-A1September 19, 2002Basf AktiengessellschaftUse of polymers containing carboxyl groups and polyalkylene ether side chains as additives in mineral building materials
    US-6433114-B1August 13, 2002Takemoto Yushi Kabushiki KaishaMethod of producing polyetherester monomer and cement dispersants

NO-Patent Citations (2)

    Title
    IONESCU: "Chemistry and Technology of Polyols for Polyurethanes", 2005, 19000101, XP008094529
    PRITCHARD, PLASTIC ADDITIVES: AN A-Z REFERENCE, 1998, XP008094530

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