Urethane-acrylic copolymer thickening compositions for aqueous s

Details Urethane-acrylic copolymer thickening compositions for aqueous s Urethane-acrylic copolymer thickening compositions for aqueous s

1997-03-07

2000-05-30

Henderson, Christopher

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

524555, C08F22600

Patent

active

060692170

ABSTRACT:
Thickening composition are produced by linking a polyurethane comprising polyisocyanates, polyether polyols, modifying agents and capping agents with an alkali swellable copolymer comprising ethylenically unsaturated carboxylic acid monomers and nonionic vinyl monomers through a connecting monomer having a polymerizable double bond and a hydrogen active group. The thickening composition are used to provide improved viscosity control, flow and leveling to aqueous systems such as paints and coatings, inks, drilling fluids, adhesives, construction materials, personal care and housedhold products.

REFERENCES:
patent: 4730021 (1988-03-01), Zomm
patent: 4732808 (1988-03-01), Krampe
patent: 5023309 (1991-06-01), Kruse
patent: 5691425 (1997-11-01), Klein

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