Sealing compositions
Patent 4699810 Issued on October 13, 1987. Estimated Expiration Date: 
February 5, 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.
February 5, 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 3338456 3515569 3592782 3615972 3864181 Resilient organic microspheres in mastic adhesives, sealants, caulks, coating compounds and related products, and methods of manufacture Expandable sealing compositions Process of producing transparent foamed plastics materials Molding compound for molding body portions and process for producing this molding compound Patent #: 4451584 InventorsAssigneeApplicationNo. 07/011489 filed on 02/05/1987US Classes:427/244, Filter, sponge, or foam220/378, Having gasket or packing220/614, Including a packing element (e.g., gasket)427/284, Edge or border coating521/139, At least one polymer is derived from an ethylenically unsaturated aromatic reactant or wherein the polymer-forming system contains the same type of reactant521/140, At least one polymer is derived from reactant containing two or more ethylenic groups or wherein the polymer-forming system contains the same type of reactant521/54, Treating a cellular solid polymer by adding a solid polymer or solid polymer-forming composition521/59, Expandible system contains two or more solid polymers or at least one solid polymer and at least one polymer-forming system521/72Utilizing cell forming agent other than airExaminersPrimary: Foelak, MortonAttorney, Agent or FirmInternational ClassesC09K 3/10 (20060101)C08J 9/32 (20060101) C08J 9/00 (20060101) Foreign Application Priority Data1985-03-19 GBAbstractA storage-stable container sealing composition which is fluid and comprises an aqueous dispersion of a visco elastic, generally elastomeric, polymer and hollow microspheres of a thermoplastic polymeric material containing a liquid blowing agent. The compositions are applied as gaskets to container closures and are heated to volatilize the blowing agent and expand the microspheres.Field of SearchFilter, sponge, or foam | |
