The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2015
Filed:
Dec. 04, 2012
Harpreet Singh, Pearland, TX (US);
Viviano Bertolone, Lurago Marinone, IT;
Orazio Rubulotta, Limido Comasco, IT;
Jorge Jimenez, Lake Jackson, TX (US);
William H. Heath, Lake Jackson, TX (US);
Amarnath Singh, Pearland, TX (US);
William A. Koonce, Pearland, TX (US);
Harpreet Singh, Pearland, TX (US);
Viviano Bertolone, Lurago Marinone, IT;
Orazio Rubulotta, Limido Comasco, IT;
Jorge Jimenez, Lake Jackson, TX (US);
William H. Heath, Lake Jackson, TX (US);
Amarnath Singh, Pearland, TX (US);
William A. Koonce, Pearland, TX (US);
Dow Global Technologies LLC, Midland, MI (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
A two-component curable adhesive or sealant composition is provided. The first component may comprise a mixture of at least one polyol selected from the group comprising a polyester polyol, a polyester-polycarbonate copolymer polyol, and combinations thereof, a resin, and optionally a solvent. The second component may comprise a prepolymer obtained by reacting a polyester-polycarbonate copolymer polyol which is the reaction product of a polyester polyol which is the reaction product of one or more organic acids, and one or more glycols having a functionality of two or more and one or more polycarbonate polyols, at least one organic polyisocyanate component, and at least one chain extending agent and optionally a solvent. Alternatively, the first component may comprise a polyester-polycarbonate copolymer polyol, a resin, and optionally a solvent. The second component may comprise a polyisocyanate curative and optionally a solvent. The cured adhesive exhibits improved hydrolytic properties while maintaining excellent processability and adhesive properties.