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:
Feb. 22, 1994
Filed:
Oct. 28, 1992
Applicant:
Inventors:
Arno Gardziella, Witten-Rudinghasuen, DE;
Achim Hansen, Iserlohn-Letmathe, DE;
Alois Kwasniok, Iserlohn-Letmathe, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ; C08K / ;
U.S. Cl.
CPC ...
524 74 ; 524541 ; 523144 ;
Abstract
A binding agent comprising 95 to 50% by weight of a furan resin, 5 to 50% by weight of lignin from the Organosolv process and organic and/or inorganic acid curing agents useful for the production of curable molding compositions, high temperature-stable molding substances and refractory products, especially casting cores and casting molds.