Allied Colloids Limited

Ciba Specialty Chemicals Water Treatments Limited

Basf Se Corporation

Ciba Specialty Chemicals Corporation

Malcolm Skinner

David Farrar

Peter Flesher

Emmanuel Martin

John B Clarke

Ian Michael Johnson

David Marshall

David Normington

Keith Graham

Mark Sirfaraz Ghafoor

Malcolm Hawe

Brian Dymond

Michael Green

Tony Whittaker

Steven Weir

Céline Hossenlopp

Martin Peter Butters

Ian Stuart Biggin

Tamal Ghosh

Beatrix Loehner

John Stephen Robinson

Laurent Brauge

Tiina Luttikhedde

Ian Biggin

The present invention provides rheology modifiers, which are water-soluble polymers having a weight average molecular weight (Mw) of at least 1,000,000 g/mol and an intrinsic viscosity of at least 2.5 dl/g, both as determined by size exclusion chromatography, and wherein the water-soluble polymers are in the form of solid particles. It also provides mixtures of rheology modifiers comprising a first rheology modifier, which is a water-soluble polymer having a weight average molecular weight (Mw) of at least 1,000,000 g/mol and an intrinsic viscosity of at least 2.5 dl/g, both as determined by size exclusion chromatography, and a second rheology modifier, which has a weight average molecular weight of from 2,000 g/mol to 800,000 g/mol. It also provides coating composition containing the rheology modifiers, respectively, mixtures of rheology modifiers, a process for their preparation, a process for coating a substrate using these coating compositions and substrates coated with these coating compositions.

Rheology modifiers for modifying the rheological behaviour of coating compositions

Water-swellable compositions, dispersions and polymer microparticles for their preparation as well as their manufactures and uses are described.

Reverse phase hydrophilic polymers and their use in water-expandable elastomeric compositions

This invention relates to fabric softener compositions comprising a fabric softener component or a mixture of fabric softener components and at least one polymer formed from the polymerization of c) a water soluble ethylenically unsaturated monomer or blend of monomers comprising at least one cationic monomer and/or at least one non-ionic monomer, d) a cross-linking agent or a mixture of cross-linking agents in an amount of less than 5 ppm by the weight of component a), and c) optionally at least one chain transfer agent, with the proviso that (i) if the polymer is a cationic homopolymer then the amount of the crosslinking agent is always more than 0 ppm, as thickeners, as well as to new fabric softener compositions.

Fabric softener compositions comprising homo- and/or copolymers

The invention relates to aqueous compositions, preferably aqueous compositions comprising at least one polymer with a particle size of more than 10 &#x3bc;m, formed from the polymerisation of a) at least one monomer of formula (I), wherein R, signifies hydrogen or methyl, Rsignifies hydrogen or C-Calkyl, Rsignifies C-Calkylene, R, Rand Rsignify independently from each other hydrogen or C-Calkyl, X signifies &#x2014;O&#x2014; or &#x2014;NH&#x2014; and Y signifies Cl; Br; l; hydrogen-sulphate or methosulfate, b) and/or at least one non-ionic monomer, c) at least one cross-linking agent in an amount of 0-50 ppm by the weight of component a) and b) optionally at least one chain transfer agent with the proviso that (i) if the polymer is a cationic homopolymer then the amount of the crosslinking agent is always more than 0 ppm and less than 50 ppm. 

Aqueous cleaning compositions comprising cationic copolymers

A process of flocculating and dewatering an aqueous suspension of suspended solids comprising, introducing into the suspension, (a) substantially linear polymer, (b) structured polymer, characterised in that the polymers are introduced into the substrate sequentially. The process brings about improvements in filtration.

Process for flocculating suspensions

A stable, pourable, liquid composition contains 20 to 60% by weight of a blend of a water soluble high IV polymer and a water soluble low IV cationic coagulant polymer, is selected from polyamines, cationic dicyandiamide polymers and polymers of 70 to 100% ethylenically unsaturated cationic monomer with 0 to 30% by weight acrylamide, and contains 0.01 to 1 part by weight of a water soluble multi-hydroxy compound per part by weight of the coagulant polymer.

Polymeric compositions and their production and uses

A stable, pourable, liquid composition contains a blend of at least 8% (usually at least 15%) water soluble high IV cationic polymer and a water soluble low IV cationic coagulant polymer which preferably comprises polyamine, and water soluble inorganic salt.

A water absorbing particulate polymer material wherein the polymer material when in dry powder form has a particle size of about 50 .mu.m to about 500 .mu.m and wherein the particles consist of internally bonded finer particles which finer particles have a size below 50 .mu.m. The process of using the water absorbing polymer, material to convert a wet sticky mass of inorganic particulate such as coal fines into a crumbly or flowable solid. A process using a water absorbing particulate polymer material to convert a wet sticky mass of organic particulate material into a crumbly or flowable solid wherein the organic matter can be, for example, food waste or sewage.

Water absorbing polymers

Methods of making crystalline-coated polymeric materials

A wet filter cake of coal fines or other inorganic particulate material is converted to a crumbly mass by blending with water absorbent polymer particles.

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Bradford, United Kingdom

Malcolm Skinner