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:
Oct. 19, 1993
Filed:
Oct. 26, 1992
Applicant:
Inventors:
Arno Gardziella, Witten-Rudinghausen, DE;
Achim Hansen, Iserlohn-Letmathe, DE;
Stephan Schroter, Essen, DE;
Josef Suren, Wunnenberg Haaren, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525398 ; 528-1 ; 528129 ; 528149 ; 528155 ; 528163 ; 528218 ; 528230 ; 528250 ; 528254 ; 528423 ; 525405 ; 525480 ; 525481 ; 525491 ; 525496 ; 525497 ; 428224 ; 428288 ; 428290 ; 428291 ; 106 382 ; 106 386 ; 106218 ; 106602 ; 106603 ; 527403 ; 1882 / ;
Abstract
A binding agent for molded bodies and molding compositions produced by prereacting a mixture of 5 to 60% by weight of lignin or a lignin fraction produced by the Organosolv process and 40 to 95% by weight of a phenol novolac resin and subjecting the latter to high shear forces in a kneader or extruder and optionally mixing the same with a curing agent useful in molding compositions and high temperature-stable molded products such as refractory products, friction coatings, textile fleeces and carbon or graphite materials.