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. 27, 1979
Filed:
Nov. 29, 1977
Egon Bierwirth, Orizaba, MX;
Norbert Esper, Bergkamen, DE;
Christian Burba, Ascheberg-Herbern, DE;
Rolf Spickers, Kamen, DE;
Schering Aktiengesellschaft, Berlin and Bergkamen, DE;
Abstract
What is disclosed is an adhesion improved plastisol composition adaptable to use as a coating material or adhesive and comprising a finely-divided vinyl chloride polymer together with a plasticizer and filler and an adhesion improver which is (1) a condensation product formed between a polymerized fatty acid mixture having a content, X, measured in weight percent of said mixture, of tripolymeric and higher polymeric fatty acids and excess polyalkylene polyamine; (2) a product formed by reacting said condensation product (1) with an aldehyde or ketone; or (3) an adduct formed between said condensation product (1) and an epoxy compound; said adhesion improver (1), (2), or (3) having a content, Y, of imidazoline groups, expressed as a percent by weight of condensation product (1), such that the values of both X and Y are at least 40, or if the value of either X or Y is below 40 then the other value is at least 40+Z, where Z is the difference between 40 and the smaller value.