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:
Apr. 05, 1977
Filed:
Jun. 03, 1974
Jurgen Ritz, Nierstein, DT;
Johannes Reese, Wiesbaden-Biebrich, DT;
Hoechst Aktiengesellschaft, Frankfurt, DT;
Abstract
An epoxy resin containing acetoacetic ester groups in which at least a part of the acetoacetic ester groups is enolized by atoms of at least one metal from groups I to VI or Ia to Viiia of the Periodic Table according to Meyer and Mendelejeff which metal atoms are partially bound to the enolic oxygen of the acetoacetic ester group in the form of a chelate. A process for preparing said resins wherein an epoxy resin product containing acetoacetic ester groups is further reacted in the presence of a solvent (a) first with an alkali metal alcoholate and subsequently with at least one salt of at least one chelate-forming metal; or (b) with at least one chelate-forming metal in the presence of a tertiary amine or (c) for the preparation of an epoxy resin containing chemically bound atoms of at least one metal partially bound as a chelate an epoxy resin containing acetoacetic ester groups is further reacted in the presence of a solvent with an alcoholate of at least one chelate-forming metal.