Vinyl acetate polymer with wet adhesion
Patent 5208285 Issued on May 4, 1993. Estimated Expiration Date: 
August 16, 2011. 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.
August 16, 2011. 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 ReferencesAlkenyl 1-(2-Aminoethyl) alkyleneureido succinamates, their synthesis, and use in aqueous emulsion polymer systems Vinyl acetate copolymer emulsions for paint Patent #: 4219454 InventorsAssigneeApplicationNo. 749613 filed on 08/16/1991US Classes:524/516, Solid polymer derived from nitrogen heterocycle monomer524/522, Solid polymer derived from carboxylic acid-containing monomer524/523, Solid polymer derived from carboxylic acid ester monomer524/524Ester derived from an unsaturated alcohol and a saturated acid, e.g., vinyl acetate, etc.ExaminersPrimary: Schofer, Joseph L.Assistant: Smith, Jerry Attorney, Agent or FirmForeign Patent References
International ClassC08L 031/04Foreign Application Priority Data1989-02-17 CAAbstractWet adhesion properties comparable or superior to all-acrylic latexes for vinyl acetate copolymers and other low cost polymers, such as EVA-vinyl chloride copolymers, is achieved by blending a minor proportion, usually about 5 to 15%, of a small particle size copolymer containing copolymerized wet adhesion monomer which is a cyclic ureido. Very low quantities of the wet adhesion monomer, less than 0.25 wt% of total monomers, only are required to achieve excellent results.Field of SearchSolid polymer derived from nitrogen heterocycle monomerMonomer contains nitrogen atom as part of a heterocyclic ring N-containing monomer other than: unsubstituted ammonium as sole nitrogen, acrylamide, methylol acrylamide, acrylonitrile and the corresponding methacryl compounds or mixtures thereof Solid polymer derived from carboxylic acid-containing monomer Solid polymer derived from carboxylic acid ester monomer Ester derived from an unsaturated alcohol and a saturated acid, e.g., vinyl acetate, etc. | |
