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. 22, 2014
Filed:
Jul. 27, 2010
Achim Kohler, Heilbronn, DE;
John Stuart Cowman, Bradford, GB;
Damien Corpet, Oslon, FR;
Antonella Leone-kammler, Muenchenstein, CH;
Achim Kohler, Heilbronn, DE;
John Stuart Cowman, Bradford, GB;
Damien Corpet, Oslon, FR;
Antonella Leone-Kammler, Muenchenstein, CH;
Clariant Finance (BVI) Limited, Tortola, VG;
Abstract
The invention relates to a method for reducing the negative effects of adhesive contaminants in the processing of waste paper, wherein an aqueous polymer dispersion comprising one component A and one component B for coagulation and detackification of stickies is added during the processing of waste paper, wherein component A is a homo- and/or copolymer of methyl methacrylate, acrylate and/or styrene and component B is a styrene copolymer having acrylic acid, maleimide and/or maleic acid hydride. The polymer dispersion can optionally comprise another component C, a cationic fixing agent that supports the coagulation of the stickies.