Novel oriented polyester film composites
Patent 4880700 Issued on November 14, 1989. Estimated Expiration Date: 
August 12, 2007. 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 12, 2007. 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 2627088 2794742 Polyester resin aqueous dispersion Copolyester primed polyester film Polyester film primed with crosslinked acrylic polymers Polymeric films Patent #: 4704325 InventorsAssigneeApplicationNo. 084219 filed on 08/12/1987US Classes:428/337, Of base or substrate428/341, Of coating428/458, Next to polyester, polyamide or polyimide (e.g., alkyd, glue, or nylon, etc.)428/480, Of polyester (e.g., alkyd, etc.)428/481, Next to cellulosic428/482, Of cross-linked polyester428/483Next to addition polymer from unsaturated monomersExaminersPrimary: Herbert, Thomas J. Jr.Attorney, Agent or FirmInternational ClassesB32B 027/08B32B 027/10 B32B 027/36 Foreign Application Priority Data1986-08-12 FRAbstractOriented polyester film composites comprise, on at least one face surface of the polyester base, a primer coating adapted to enhance the adhesion of topcoats thereto, said adhesive primer coating comprising a modified copolymer produced by aqueous phase radical polymerization of at least one acrylic monomer in the presence of a water-soluble or water-dispersible copolyester containing a plurality of sulfonyloxy groups.Field of SearchOf polyester (e.g., alkyd, etc.)Of cross-linked polyester 1 mil or less Of base or substrate Of coating Next to addition polymer from unsaturated monomers Next to cellulosic Next to polyester, polyamide or polyimide (e.g., alkyd, glue, or nylon, etc.) Lateral stretching Polymer of unsaturated ester or halide Carboxyalkyl or alkali metal salt thereof Nitrogen-containing reactant Sulfur-containing aryl compound | |
