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. 06, 1976
Filed:
Feb. 06, 1974
Karl-Heinz Risken, Mainz-Finthen, DT;
Abstract
The invention relates to a process for the insulative coating of electrical conductors with thermosetting resins. According to the invention, the resins used are thermosetting ester resins produced from polyhydric alcohols, carboxylic acids with two or more carboxyl groups attached to an aromatic ring and, as optional components, an aliphatic carboxylic acid and amino group-containing compounds. Low molecular weight resins are used containing from 0.85 to 1 mol of polyhydric alcohols per equivalent of co-condensed carboxylic acid. The resins used have a melt viscosity of at most 40,000 m Pa s at 120.degree.C. Coating is preferably carried out using a solvent-free composition, and at a low temperature.