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:
Sep. 15, 1992
Filed:
Jul. 10, 1990
Applicant:
Inventors:
Gunter Rinck, Frankfurt, DE;
Knut Moller, Neuberg, DE;
Sigismund Fullert, Frankfurt, DE;
Frank Krause, Kleve, DE;
Helmut Koch, Tervuren, BE;
Assignees:
Synthomer Chemie GmbH, Frankfurt am Main, DE;
Cerestar Holding B.V., Sas Van Gent, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524 48 ; 524 47 ; 524734 ; 524819 ; 524821 ; 524822 ; 524836 ; 526200 ;
Abstract
A process is described for the production of an aqueous polymer dispersion by polymerization of ethylenically unsaturated compounds by means of free-radical initiators in the presence of starch and/or starch derivatives and optional further conventional adjuvants, and which the dispersions are coagulate-free, have a low viscosity, and a small particle size, said process comprising polymerizing an ethylenically unsaturated diene monomer or mixture of monomers consisting of