Latex paints
Patent 5124393 Issued on June 23, 1992. Estimated Expiration Date: 
April 30, 2010. 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.
April 30, 2010. 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 Re31936 3509085 3594337 3616166 3843584 Water insoluble hydrophilic polymer composition Vinyl acetate copolymer emulsions for paint Acrylamide copolymer thickener for aqueous systems Non woven fabrics suitable for diaper and diaper coverstock Acrylic resin dispersions InventorsAssigneeApplicationNo. 516241 filed on 04/30/1990US Classes:524/458, Polymerizing in the presence of water and in the presence of a solid polymer derived from ethylenic reactants only524/555, From nitrogen-containing monomer other than acrylonitrile or methacrylonitrile524/558, Acid or ester contains an oxygen atom which is other than part of a free carboxyl group or carboxylic acid ester group524/566, Inorganic nonreactive material525/903INTERPENETRATING NETWORKExaminersPrimary: Schofer, Joseph L.Assistant: Smith, Jerry Attorney, Agent or FirmForeign Patent References
International ClassC08L 031/02AbstractThe ICI viscosity of a paint is improved by incorporating into the paint a binder that comprises, in part, a supplemental polymer. The supplemental polymer comprises about 20 to about 60 weight percent of a substantially non-self-polymerizable monomer and about 40 to about 80 weight percent of a copolymerizable monomer having a water-soluble homopolymer. The supplemental polymer and binder are substantially inseparable by chromatographic means.Other References
Field of SearchPolymerizing in the presence of water and in the presence of a solid polymer derived from ethylenic reactants onlyFrom nitrogen-containing monomer other than acrylonitrile or methacrylonitrile Acid or ester contains an oxygen atom which is other than part of a free carboxyl group or carboxylic acid ester group From ester derived from at least one unsaturated carboxylic acid and a saturated alcohol, e.g., methyl methacrylate, etc. INTERPENETRATING NETWORK | |
