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:
Jan. 22, 1985
Filed:
Sep. 23, 1976
Applicant:
Inventor:
David R Armbruster, Forest Park, IL (US);
Assignee:
Acme Resin Corporation, Forest Park, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08K / ;
U.S. Cl.
CPC ...
523139 ; 523144 ; 523145 ; 524379 ; 524389 ; 524405 ; 524428 ; 524541 ; 524596 ; 524612 ; 525501 ;
Abstract
A suspension or solution containing an acid-curable fluoride-containing resin which is useful in a foundry process is disclosed. The fluoride-containing resin is curable at room temperatures and above by the addition of a strong acid catalyst. The resin is preferably a phenolic resole resin or a furan-type resin. The fluoride-containing resins, when used in a foundry process are preferably admixed with a foundry sand and a strong acid catalyst. The coated sand is then shaped into the form of a foundry core and is allowed to cure at room temperature or above to a foundry core having excellent tensile strength.