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:
Sep. 22, 1992
Filed:
Dec. 01, 1988
Richard Hemel, Monheim-Baumberg, DE;
Julius Herold, Gettysburg, MI (US);
Hans-Juergen Buecken, Monheim, DE;
Peter Hofmann, Duesseldorf, DE;
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf-Holthausen, DE;
Abstract
Heat curable adhesives, based on polybutadiene containing hydroxyl groups, which have a content of (a) polybutadiene having a number average molecular weight of from about 1000 to 3500 and OH values in the range from about 20 to 100; (b) blocked multi-isocyanates, (c) sulfur and (d) conventional vulcanization accelerators, an which may also contain conventional, especially mineral, fillers, pigments and/or auxiliaries, show good elasticity behavior and high tensile shear strength after curing and have a relatively low viscosity favorable for processing before curing.