Clariant Finance (Bvi) Limited

Archroma IP Gmbh

Clariant International Ltd

John Stuart Cowman

Roman Morschhaeuser

Dirk Fischer

Peter Naumann

Damien Julien Corpet

Achim Kohler

Antonella Leone-Kammler

Paul Dekock

John Martin Farrar

Mark David Graham

Neil Mackinnon

Andrew Mottram

Adrian Fox

The present invention relates to a copolymer comprising at least one hydrophilic monomer; at least one hydrophobic monomer and at least 10% by weight of methyl styrene, particularly suitable to be used as detackifying agent for reducing negative effects caused by natural pitch and/or adhesive contaminants in both pulping and papermaking operations.

Copolymer, aqueous solution comprising the copolymer and method for reducing negative effects of natural pitch and adhesive contaminants in both pulping and papermaking operations

Method of making a substrate comprising cellulosic fibres such as paper comprising at least steps (a) and (b):

Use of an acrylate copolymer as retention aid in a method of making a substrate comprising cellulosic fibres

The invention relates to the use of polyesters for increasing the surface tension and improving the hydrophilic behavior of hydrophobic surfaces, wherein said polyesters are obtainable by polymerization of

Polyester for the paper industry

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.

Method for reducing negative effects of adhesive contaminants in systems of substances comprising waste paper

Optical brightening agents

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Bradford, United Kingdom

John Stuart Cowman