Polyacrylate thickener and method for making same

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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5253306, C08F 842

Patent

active

057031762

ABSTRACT:
An improved polyacrylate thickener and a method for making same are provided. The polyacrylate thickener is made using a monomer blend containing ethyl acrylate. In one embodiment the ethyl acrylate is polymerized and then hydrolyzed using a metal hydroxide. The resulting thickener contains unhydrolyzed polyacrylates, metal polyacrylates and ethanol. The final product, which is nontoxic and nonhazardous, can then be added to other compositions, such as textile coatings, as a viscosity enhancer.

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patent: 4077926 (1978-03-01), Sanderson et al.
patent: 4138381 (1979-02-01), Chang et al.
patent: 4384096 (1983-05-01), Sonnabend

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