Flow-regulated latex systems
AssigneeCelanese Corporation
InventorsGunilla E. Gillberg-La Force, Helen A. Kravas
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Abstract
This invention provides flow-regulated adhesive latex formulations which exhibit unique shear-thinning properties for coating of substrates such as tire cord. The essential components of an invention aqueous adhesive composition for textile-rubber bonding consist of (1) an associative thickener, (2) a phenol-aldehyde resin; and (3) a latex of curable elastomer.
Claims11
A shear-thinning aqueous adhesive composition comprising (1) between about 0.1-25 weight percent of water-soluble associative polyether surfactant, based on the total weight of polymeric components, wherein the associative polyether surfactant is a polymer consisting of a hydrophilic polyoxyalkylene backbone with at least two pendant hydrophobic side chains;
- (2) water-soluble dihydric phenol-aldehyde resin;
- and (3) a latex of curable elastomer.
An adhesive formulation adapted for textile-rubber bonding comprising a shear-thinning aqueous medium containing (1) between about 0.1-25 weight percent of an associative thickener which is a water-soluble copolymer of a 1,3-dioxolane monomer and a C.sub.8 -C.sub.36 monoepoxide monomer, based on the total weight of polymeric components;
- (2) between about 1-20 weight percent of a water-soluble resorcinol-formaldehyde resin, based on the formulation weight;
- and (3) between about 5-50 weight percent of curable colloidal elastomer, based on the formulation weight.
Dependencies are inferred from the claim text.