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:
Apr. 11, 1989
Filed:
May. 07, 1987
Applicant:
Inventors:
Virginia C Markevka, Maplewood, MN (US);
John M Zimmel, St. Paul, MN (US);
Elizabeth R Messman, Minneapolis, MN (US);
William L Bunnelle, Stillwater, MN (US);
Assignee:
H. B. Fuller Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
C09J / ;
U.S. Cl.
CPC ...
1563073 ; 1563314 ; 525 93 ; 525 96 ; 525111 ; 525127 ; 525130 ; 525455 ;
Abstract
Hot melt adhesive compositions combining the characteristics of hot melt adhesives and reactive adhesives can be prepared by blending a thermoplastic polymer, having sufficient structural integrity to provide cohesive strength, with a urethane prepolymer and a tackifying agent. The composition has sufficient green strength to form initial bonds. Additionally, over time, the composition cures to a final rigid, resilient structural adhesive bond.