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:
Jul. 22, 1980
Filed:
Apr. 28, 1978
Applicant:
Inventors:
Jean-Pierre Blanc, Antony, FR;
Francois Meiller, Palaiseau, FR;
Assignee:
Rhone-Poulenc Industries, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28B / ;
U.S. Cl.
CPC ...
106 3835 ; 106 383 ; 106 74 ; 106 84 ;
Abstract
Catalysts for hardening aqueous alkali metal silicate solutions comprising mixtures of alkylene carbonate and methyl esters of organic acids are disclosed. The hardening catalysts are primarily useful in the production of high quality foundry molds and cores based on alkali metal silicate binders.