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:
Jun. 28, 1983
Filed:
Jan. 07, 1982
Stanley B LaBelle, Anoka, MN (US);
James A Hagquist, St. Paul, MN (US);
H. B. Fuller Company, St. Paul, MN (US);
Abstract
A one-package heat curable polyurethane composition, comprising an isocyanate terminated prepolymer liquid phase and a separate solid polyhydroxy compound phase insoluble in the prepolymer phase, and suitable for use as an adhesive. The liquid prepolymer phase comprises the reaction product of an aromatic polyisocyanate and a polyhydroxy compound. The separate insoluble solid polyhydroxy compound phase is dispersed or suspended throughout the liquid prepolymer phase and remains separate until heat cured. The ratio of OH groups in the solid polyhydroxy compound phase to NCO groups in the isocyanate terminated prepolymer liquid phase is less than 2:1. The one-package polyurethane adhesive composition can also be useful as an in-mold coating and an injection molding compound.