Flexible hydrophilic composite coatings

Details Flexible hydrophilic composite coatings Flexible hydrophilic composite coatings

1996-04-19

1998-04-21

Szekely, Peter A.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524523, 524522, 524521, 524514, 524507, 524506, 524565, C08J 302, C08L 3320

Patent

active

057418284

ABSTRACT:
The present invention is directed to a coating composition which includes a component A and component B. Component A is either an emulsion or dispersion having a hydrophobic elastomer stabilized with at lease one emulsifier. Component B is a dispersion or solution of a hydrophilic polymer which is insoluble in water, swellable in water and soluble in one or more water-miscible solvents. The hydrophobic elastomers may be polymers or copolymers of butadiene, isoprene, chloroprene, styrene, acrylonitrile, ethylene, propylene, isobutylene, alkylacrylates and alkylmethacrylates; polyrethanes, polyureas, polysiloxanes, elastomeric polyamides and polyesters. The hydrophilic polymers may be segmented polyurethanes, segmented polyures, segmented polyesters, partially hydrolyzed poly(vinyl acetate), partially hydrolyzed polyacrylonitrile, partially aminolyzed polyacrylonitrile, and ethylene glycol monomethacrylate. An optional Component C may be included which could be organic diluents and plasticizers; surfactants; water-soluble polymeric additives; inorganic or organic salts; pigments; fillers; biocides; UV-absorbers; preservatives; and particulate covalently cross-linked hydrogels.

REFERENCES:
patent: 3030323 (1962-04-01), Turai
patent: 4923920 (1990-05-01), Scholl et al.

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