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:
Feb. 18, 2014
Filed:
Nov. 25, 2009
Gerhard Albrecht, Prien am Chiemsee, DE;
Herbert Hommer, Mühldorf, DE;
Thomas Wohlhaupter, Eggstaett, DE;
Gerhard Albrecht, Prien am Chiemsee, DE;
Herbert Hommer, Mühldorf, DE;
Thomas Wohlhaupter, Eggstaett, DE;
Construction Research & Technology GmbH, Trostberg, DE;
Abstract
The invention relates to a process for the preparation of a polymerization mixture suitable as a dispersant and comprising a copolymer. In the process, a vinyloxyalkylpolyether derivative is reacted with an acid monomer derivative with formation of the copolymer in the presence of a free radical polymerization initiator by free radical polymerization, the free radical polymerization taking place in a medium which contains less than 25% by weight of water and in totality more than 60% by weight of copolymer, vinyloxyalkylpolyether derivative and acid monomer derivative.