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. 06, 2005
Filed:
Feb. 13, 2003
Peter Tschirner, Emmerting, DE;
Andreas Lumpp, Burghausen, DE;
Robert Singer, Burghausen, DE;
Guenter Braunsperger, Kirchdorf, DE;
Peter Tschirner, Emmerting, DE;
Andreas Lumpp, Burghausen, DE;
Robert Singer, Burghausen, DE;
Guenter Braunsperger, Kirchdorf, DE;
Wacker Polymer Systems GmbH & Co. KG, Burghausen, DE;
Abstract
The invention relates to a process for preparing solid polyvinyl ester resins using a bulk or solution polymerization process in the presence of a chain transfer agent, wherein one or more vinyl esters of unbranched or branched alkyl carboxylic acids having 1 to 15 carbon atoms are polymerized in the presence of a compound selected from the group consisting of monovalent aliphatic alcohols having 1 to 6 carbon atoms, esters of aliphatic monocarboxylic acids and aliphatic alcohols each having 1 to 4 carbon atoms, or aliphatic ketones having 3 to 6 carbon atoms.