PROCEDE DE PRODUCTION DE POLYMERES DE DISPERSION ANIONIQUES HYDROSOLUBLES- Brevets WO9734933 (A1)

PROCEDE DE PRODUCTION DE POLYMERES DE DISPERSION ANIONIQUES HYDROSOLUBLES

N° de brevet:	WO9734933 (A1)
Date de publication:	1997-09-25
Inventeur(s):	SELVARAJAN RADHAKRISHNAN;HURLOCK JOHN R;
Demandeur(s):	NALCO CHEMICAL CO [US];
Classification:	C08F2/08;C08F2/10;C08F20/06;C08F20/54;C08L33/02;C08L33/24;D21H17/34;
N° de demande:	WO1997US04275 19970319
Numéro(s) de priorité:	US19970781646 19970110

Aqueous dispersions of water-soluble nonionic and anionically charged vinyl and allyl addition polymers can be obtained by polymerizing in the presence of an anionically charged water-soluble polymer stabilizer in a saturated salt solution. Methods for the preparation of these polymers, and their compositions are dislosed.