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:
Dec. 03, 2002
Filed:
May. 22, 2000
Applicant:
Inventors:
Bernd Schilling, Macungie, PA (US);
Georg Riepl, Emmerting, DE;
Assignee:
Wacker-Chemie GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 2/904 ;
U.S. Cl.
CPC ...
C08L 2/904 ;
Abstract
The invention provides a method of producing aqueous, protective colloid stabilized vinyl ester homo- and co-polymer dispersions with a defined solids content by emulsion polymerization in the presence of a protective colloid. The method specifies that a dispersion with a solids content lower than the defined solids content is produced and then thickened to the defined solids content after the polymerization has been completed. The dispersion is thickened by adding a polymer powder which is of the same polymer composition as the emulsion polymerizate and which can be redispersed in water.