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:
Jul. 10, 2012
Filed:
Oct. 24, 2003
Hans-peter Weitzel, Reischach, DE;
Kurt Stark, Burgkirchen, DE;
Hans-Peter Weitzel, Reischach, DE;
Kurt Stark, Burgkirchen, DE;
Wacker Chemie AG, Munich, DE;
Abstract
Protective-colloid-stabilized polymers in the form of their aqueous dispersions or of their water-redispersible powders are based on homo- or copolymers of one or more monomers from the group consisting of vinyl esters of optionally branched alkyl carboxylic acids having from 1 to 15 carbon atoms, (meth)acrylic esters of alcohols having from 1 to 15 carbon atoms, vinylaromatics, olefins, dienes, and vinyl halides, wherein partially hydrolyzed vinyl acetate-ethylene copolymers with an ethylene content of from 1 to 15 mol %, a degree of hydrolysis DH of the vinyl acetate units of 80 mol %<DH<95 mol %, and a Höppler viscosity in 4% by weight aqueous solution of from 2 to 30 mPas, are present as protective colloids.