Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1983-12-22
1985-02-26
Griffin, Ronald W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
424 70, 424 73, 424 78, 424 81, 424DIG2, 514781, 523105, 524523, A61K 700, A61K 706, B32B 2104
Patent
active
045018340
ABSTRACT:
The formation of novel water soluble and water insoluble gels by interpolymer reactions of selective anionic polymers with selective cationic polymers in an aqueous medium, with either polymer serving as a cross-linking agent under specific conditions of speed and concentration. The selective cationic polymer is a quaternized ammonium polyelectrolyte selected from the group consisting of poly (diallyldimethylammonium chloride), poly (diallyldimethylammonium chloride-co-acrylamide), and a quaternary ammonium cellulose ether polymer. The anionic polymer is selected from the group consisting of a polysulfonic acid and alginic acid. The formation of the gel structure depends on fast and intensive interaction of the two opposite charges to insure a maximum amount of ion pair formation. The solubility of the gel depends on the formation of intimate or loose ion pairs; which depends on the charge density and structure of the polyelectrolytes. These interpolymer gels exhibit a dramatic increase in viscosity. The water soluble gels produced can be used as foam enhancers and conditioning agents in cosmetic compositions such as shaving gels, shampoos and the like; and in sewage treatment (removal of sebum and traces of organic substances). The water insoluble gels are clear and of extremely high viscoelasticity which can be made into clear films.
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Colgate-Palmolive Company
Griffin Ronald W.
Grill Murray M.
Miller Richard N.
Sylvester Herbert S.
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