Polyurethane hybrid dispersions and coatings having increased wet adhesion and solvent resistance
October 14, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3684759 3705164 Polyurethane latices modified by a vinyl polymer Water reducible coating compositions of acrylic-urethane polymers Aqueous polyurethane - polyolefin compositions Process for preparing aqueous dispersions of acrylic-urethane graft copolymers Method for aqueous dispersion of polyurethane modified polyacrylics Process for the production of aqueous polymer dispersions, the dispersions obtainable by this process and their use for the production of coatings Aqueous dispersions Waterbased methylol (meth) acrylamide acrylic polymer and polyurethane containing coating composition InventorsAssigneeApplicationNo. 172397 filed on 10/14/1998US Classes:524/507, With solid polymer derived from at least one -N=C=X (X is chalcogen) reactant wherein at least one of the reactants forming the solid polymer is saturated; or with SPFI or SICP derived from a -N=C=X reactant wherein at least one of the necessary reactants is saturated427/372.2, Heating or drying (e.g., polymerizing, vulcanizing, curing, etc.)427/385.5, Resin, resin precursor, rubber, or hardenable oil-containing coating428/423.1, Of polyamidoester (polyurethane, polyisocyanate, polycarbamate, etc.)524/539, Solid polymer or SICP derived from at least one carboxylic acid or derivative reactant524/591, Water DNRM524/840N=C=X reactant has ionic group attached thereto, e.g., carboxyl sulfonic, etc.ExaminersPrimary: Niland, Patrick D.Attorney, Agent or FirmInternational ClassesC08J 003/00C08K 003/20 C08L 075/00 B05D 003/02 B32B 027/00 AbstractA polyurethane hybrid dispersion comprising a carboxylated polyurethane dispersion and a functionalized polymer. The functionalized polymer is the emulsion polymerization product of an ethylenically unsaturated monomer and from 0.1 to 5 pphm of a ureido functional comonomer, wherein the functionalized polymer is prepared in the presence of the carboxylated polyurethane dispersion. he polyurethane hybrid dispersions of the invention exhibit improved wet adhesion to alkyd substrates. Moreover, the polyurethane hybrid dispersions provide the treated substrates with improved solvent resistance.Field of SearchWith solid polymer derived from at least one -N=C=X (X is chalcogen) reactant wherein at least one of the reactants forming the solid polymer is saturated; or with SPFI or SICP derived from a -N=C=X reactant wherein at least one of the necessary reactants is saturatedSolid polymer or SICP derived from at least one carboxylic acid or derivative reactant Solid polymer or SICP derived from -N=C=X (X is chalcogen) containing reactant Water DNRM N=C=X reactant has ionic group attached thereto, e.g., carboxyl sulfonic, etc. Of polyamidoester (polyurethane, polyisocyanate, polycarbamate, etc.) Heating or drying (e.g., polymerizing, vulcanizing, curing, etc.) Resin, resin precursor, rubber, or hardenable oil-containing coating | |
