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:
Mar. 25, 1986
Filed:
Jan. 26, 1983
Dieter Barfurth, Troisdorf, DE;
Heinz Nestler, Troisdorf-Eschmar, DE;
Dynamit Nobel Aktiengesellschaft, Troisdorf, DE;
Abstract
The present invention relates to binding agents for coating compositions which can be used for making foundry molds. The new compositions contain known polymeric titanic acid esters which are treated with chelating agents. The preferred chelating agents are beta-dioxo compounds. The chelating agents are contained in the binding agent in amounts between 0.2 and 1 gram molecule per gram atom of titanium. The new binding agents can be prepared in a simple manner from titanic acid esters, water and the chelating agent, the amount of water being selected in accordance with the degree of condensation desired in the polymeric titanic acid ester.