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:
Aug. 18, 1992
Filed:
Feb. 01, 1991
Horst Muhlfeld, Grasellenbach, DE;
Gunter Schuhmacher, Weinheim, DE;
Michael Hiller, Birkenau, DE;
Georg Schloer, Abtsteinach, DE;
Firma Carl Freudenberg, Weinheim/Bergstr., DE;
Abstract
A pasty molding compound, which is reactive only above room temperature and is intended for manufacturing temperature-resistant, elasticized duromer molded components, consists of a dimerized trimethylol propane (melting point 109.degree. C., molecular weight 250, OH number 900) and of 1 to 625 parts by weight (per 100 parts of methylene diphenyldiisocyanate) of low-molecular weight and an isocyanate-limited polyesterpolyol-diisocyanate-prepolymer, prepared from polycaprolactone and an isomeric mixture of the toluenediisocyanate. This masterbatch, which has an NCO excess of up to 15% over the equivalent quantity of the free OH components can be fortified with fillers and is moldable at low pressures. Furthermore, its application as an impregnating agent for glass-fiber mats to be molded is provided.