Imperial Chemical Industries Limited

Croda International, Inc.

Derek John Irvine

Vernon Charles Gibson

Paul Alexander Cameron

Harold Russell Motson

Trevor Graham Blease

Eric Appelman

Andrew F Parsons

Paul Christian

Steven Huntley

Steven Melvyn Howdle

Richard J Harrison

Bruce C Gilbert

Fatty branched polyalkoxylates, particularly of the formula: RO(AO)R(I) where Ris Cto Caliphatic hydrocarbyl or acyl; AO is predominantly branched alkyleneoxy, particularly propyleneoxy; m is from 2 to 50; and Ris H or a is Cto Caliphatic hydrocarbyl or acyl, are used as fabric conditioners in CObased dry cleaning systems. The cleaning medium may include detergent surfactant and/or non surfactant cleaning additive or may be free from such additives in which case the treatment can be provided in a rinse cycle in a cleaning process.

Method for conditioning textiles

Ethylenically unsaturated, particularly acrylic, monomers are polymerized using a catalyst system including a manganese carbonyl initiator, an organic halogen reactive substrate and an allylic halide chain termination agent. Desirably the manganese carbonyl initiator is a dimanganese compound, particularly dimanganese decacarbonyl (Mn(CO)). The catalysis mechanism appears to involve initiator homolysis, abstraction of halogen from the reactive substrate forming an organic free radical which acts as a chain initiator for polymerization and eventual reaction of the propagating chain radical with the chain terminating agent. The speed or extent of reaction may be modified by the inclusion of Lewis acids in the reaction mixture. The resulting polymers are telechelic and may have different end groups. The polymers can be reacted further to functionalize them and/or to form block copolymers.

Polymerisation of ethylenically unsaturated monomers

Detergent or micelle free cleaning media based on detergent free and/or micelle free liquid COand including from 0.01 to 5% by weight of the formulation of a cleaning additive which is at least one multi-ester having a molecular weight of not more than 750 can be used in dry cleaning of textiles. Desirable cleaning additives are of the formula (1): R(XR)where X, R, R, and n have defined meanings, particularly to be esters of multi-carboxylic acids and mono-hydroxy alcohols or esters of mono-carboxylic acids and multi-hydroxy alcohols.

Method for cleaning textiles

Cleaning media based on liquid COand including from 0.01 to 5% by weight of the formulation of a cleaning additive which is at least one Cto Chydrocarbyl ester of a multi-carboxylic acid can be used in dry cleaning of textiles. Desirable cleaning additives are of the formula (I): R(COR)where Ris the residue of a Cto Chydrocarbyl group from which n hydrogen atoms have been removed, Ris a Cto Chydrocarbyl, particularly alkyl or alkenyl, group; and n is from 2 to 5; particularly Cto Cadipate esters.

Cleaning textiles

An enolate functionalized reaction intermediate of general formula (I), wherein X is an alkyl group; Z is selected from the group consisting of alkyl, hydrogen, halogen, alkoxy, thiol, aryloxy or ester; n is an integer and is at least one; Y is alkyl or H; the tetradentate ligand around the Al is optionally substituted. Also claimed is a process for the preparation of the enolate functionalized reaction intermediate and its reaction with a vinylic monomer and a Lewis acid to produce the corresponding vinylic polymer.

Aluminium compounds for producing vinylic polymers

A polymerisation process for the preparation of vinylic polymers from the corresponding vinylic monomers which process comprises the step of reacting a vinylic monomer in the presence of a catalyst system comprising a) a metal complex of general formula (I) where A is selected from the group consisting of nickel, iron, cobalt, chromium, manganese, titanium, zirconium, vanadium and the rare earth metals; L , L , L and L are ligands and b) a Lewis acid of general formula (II) wherein at least one of W, Y or Z is capable of forming a co-ordination bond with A and the others of W, Y and Z are bulky groups; D is selected from the group consisting of aluminium, magnesium, zinc and boron.

Process for preparing vinylic polymers with catalyst system containing metal complex and Lewis acid

A method of producing a polymer comprises the steps of forming a heterogeneous reaction mixture comprising at least one addition polymerizable monomer, a supercritical fluid, and a stabilizer, wherein the stabilizer comprises a chain which is soluble in the supercritical fluid and functional end-group which is not polymerizable by a free-radical mechanism, and polymerizing said at least one monomer in the reaction mixture. In a preferred system for polymerizing acrylic monomers, the fluid comprises supercritical carbon dioxide and the stabilizer comprises an acid-functionalized perfluoropolyether.

Addition polymerization in a homogeneous reaction mixture

A polymerization process for the preparation of vinylic polymers from the corresponding vinylic monomers which process comprises the step of reacting a vinylic monomer in the presence of a catalyst system comprising a) a compound of general formula (I) where M is any metal capable of coordinating to an enolate or delocalized enolate-like species; B , B , B and B are chosen from nitrogen, oxygen, sulphur or phosphorus containing moieties wherein each of said nitrogen, oxygen, sulphur or phosporus is linked to at least one carbon atom of an organic group and to M; X is selected from the group consisting of alkyl, H, halogen, alkoxy, thiol aryloxy, ester, b) a metal, complex of general formula (II) where A is selected from the group consisting of nickel, iron, cobalt, chromium, manganese, titanium, zirconium, vanadium and the rare earth metals; L , L , L and L are ligands and c) a Lewis acid of general formula (III) wherein at least one of W, Y or Z is capable of forming a co-ordination bond with A and the others of W, Y and Z are bulky groups; D is selected from the group concsisting of aluminium, magnesium, zinc and boron

Living polymerization process

An enolate functionalized reaction intermediate, represented by the formula (I) shown in the specification, such as, N,N&prime;-ethylenebis (3,5-di-tertbutylsalicylidene imine) enolate of ter-butyl-isobutyrate aluminum, is useful for the production of vinyl polymers, such as polymethylmethacrylate, from the corresponding vinyl polymers, e.g., methylmethacrylate, by a living polymerization reaction. A Lewis acid may be used in the polymerization.

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Stockton on Tees, United Kingdom

Derek John Irvine