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. 07, 1992
Filed:
Jul. 12, 1989
Ingolf Scheffler, Wiesloch, DE;
Michael Hirthammer, Heidelberg, DE;
Anton M Schleicher, Heidelberg, DE;
Jean-Willem Delbeck, Weinheim, DE;
Teroson G.m.b.H., Heidelberg, DE;
Abstract
In a method for the production of a sealing and adhesive strip, particularly for the direct glazing of motor vheicles, using a moisture-hardening single-component polyurethane composition based on telechelic isocyanate prepolymers of aromatic diisocyanates in stoichiometric excess and polyols a composition is employed comprising a) a catalyst for the moisture-hardening and b) a blocked activatable cross-linking agent, and a solvent or solvent mixture is continually injected into the inside of the strip during the extrusion of the strip which liberate the cross-linking agent. For the implementation of the method an extrusion nozzle for the sealing and adhesive strip is used which comprises an injection needle for the solvent opening into the nozzle, the exit opening of which points in the extrusion direction and is located in the region of the center axis of the extrusion die forming the strip.