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:
Oct. 01, 1985
Filed:
Jul. 15, 1983
Werner Ehmann, Frankfurt am Main, DE;
Alfons Homanner, Sulzbach, DE;
Helmut Rinno, Hofheim am Taunus, DE;
Hoechst Aktiengesellschaft, , DE;
Abstract
An aqueous polyvinyl ester dispersion having a solids content of 35 to 65 weight % and containing 3 to 12 weight % (relative to the total amount of dispersed particles) of polyvinyl alcohol and 2 to 70 weight % (relative to the total amount of dispersed particles) of a natural starch has excellent adhesive properties. It is manufactured by emulsion polymerization of a vinyl ester optionally together with comonomers, and by subsequent distribution of the starch in the dispersion obtained by the emulsion polymerization. The dispersion is especially suitable for the manufacture of adhesives for porous substrates.