Lever Brothers Company, Division of Conopco, Inc.

National Starch and Chemical Investment Holding Corporation

Judith L Kerschner

Sharon Harriott Jureller

Robert W Humphreys

Rosemarie Harris

Dennis Stephen Murphy

Stephen A Madison

Myongsuk Bae-Lee

Lisa Del Pizzo

Carol Resch

Cathy Wada

Catherine Victoria Chin Quee-Smith

Sharon M Jureller

Lisa DelPizzo

Carmine P Iovine

John Socrates Thomaides

Jean Hypolites Koek

Peter T Trzasko

Charles Craig Nunn

Ronald P Potman

Lodewijk Van Der Wolf

Vikki Chin Quee-Smith

A system for dry cleaning soils from fabrics comprising densified carbon dioxide and a surfactant in the densified CO . The densified carbon dioxide is in a temperature range of about &minus;78.5&deg; C. to about 100&deg; C. and a pressure range of about 14.7 to about 10,000 psi. At least 0.1% by volume of a modifier is preferably present. The surfactant has a polysiloxane a branched polyalkylene oxide or a halocarbon group which is a functional CO -philic moiety connected to a CO -phobic functional moiety. The surfantant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.

Dry cleaning system with low HLB surfactant

A system for dry cleaning soils from fabrics comprising densified carbon dioxide and a surfactant in the densified CO,. The densified carbon dioxide is in a temperature range of about &minus;78.5&deg; C. to about 100&deg; C. and a pressure range of about 14.7 to about 10,000 psi. At least 0.1% by volume of a modifier is preferably present. The surfactant has a polysiloxane, a branched polyalkylene oxide or a halocarbon group which is a functional CO,-philic moiety connected to a CO,-phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.

Method of dry cleaning using densified carbon dioxide and a surfactant

A polyurethane polymer and method of preparing it is described. The process requires the combination of a soluble polyol with a di- or polyisocyanate under densified fluid conditions. The process to prepare a waterborne polyurethane involves the utilization of a polyol containing ionic or latent ionic groups which must undergo preneutralization before combining with the di- or polyisocyanate under densified fluid conditions. The resulting polyurethane is substantially free of an organic solvent.

Synthesis of condensation polymers in densified fluids

A system for dry cleaning soils from fabrics comprising densified carbon dioxide and a surfactant in the densified CO.sub.2. The densified carbon dioxide is in a temperature range of about -78.5.degree. C. to about 100.degree. C. and a pressure range of about 14.7 to about 10,000 psi. At least 0.1% by volume of a modifier is preferably present. The surfactant has a polysiloxane, a branched polyalkylene oxide or a halocarbon group which is a functional CO.sub.2 -philic moiety connected to a CO.sub.2 -phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.

Dry cleaning system using densified carbon dioxide and a surfactant

This invention relates to a process for chemically modifying polysaccharides in a densified fluid. In particular, the modification includes esterification and/or etherification of a starch in supercritical carbon dioxide. The process is advantageous in that it allows for a high degree of substitution without the use of organic solvents or repeated reactions.

Polysaccharide modification in densified fluid

A bleach system is described that includes a peroxygen compound which is hydrogen peroxide or an inorganic substance that generates hydrogen peroxide in water, a C.sub.1 -C.sub.30 imine and a transition metal catalyst. Use of the transition metal catalyst promotes the interaction of the hydrogen peroxide and imine thereby enhancing bleach performance.

Bleaching compositions containing imine hydrogen peroxide and a

A system for dry cleaning soils from fabrics comprising densified carbon dioxide and a surfactant in the densified CO.sub.2. The surfactant has a polysiloxane, a branched polyalkylene oxide and a halocarbon group which is a functional CO.sub.2 -philic moiety connected to a CO.sub.2 -phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.

A method of dry cleaning fabrics using a dry cleaning system is described. The system comprises densified carbon dioxide, preferably in a liquid phase, and a selected surfactant which is soluble in the densified CO.sub.2. The surfactant has a polysiloxane, a branched polyalkylene oxide or a halocarbon group which is a functional CO.sub.2 -philic moiety connected to a CO.sub.2 -phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.

Method of dry cleaning fabrics using densified liquid carbon dioxide

A method of dry cleaning fabrics using a dry cleaning system is described. The system comprises densified carbon dioxide and a surfactant in the densified CO.sub.2. The surfactant has a polysiloxane, a branched polyalkylene oxide and a halocarbon group which is a functional CO.sub.2 -philic moiety connected to a CO.sub.2 -phobic functional moiety. The surfactant either exhibits an HLB of less than 15 or has a ratio of siloxyl to substituted siloxyl groups of greater than 0.5:1.

Method of dry cleaning fabrics using densified carbon dioxide

Bleaching compositions containing imine, hydrogen peroxide and a

A method for epoxidizing olefins is provided wherein an olefin and an oxygenating agent are contacted together in the presence of a manganese complex catalyst having at least one manganese atom coordinated with a nitrogen-containing ligand such that the manganese atom to coordinated nitrogen atom is 1:3 and thereafter isolating the resultant epoxide product. Catalyst compositions are also provided formed from the adsorption of the manganese complex catalyst onto a solvent insoluble support.

Epoxidation of olefins via certain manganese complexes

A process is described for the preparation of a manganese complex catalyst having the formula: ##STR1## wherein Mn is manganese in the +4 oxidation state; R is a C.sub.1 -C.sub.20 radical selected from the group consisting of alkyl, cycloalkyl, aryl, benzyl and radical combinations thereof;

Process for the preparation of manganese bleach catalyst

A process for preparing a dinuclear manganese complex of formula (A) ##STR1## wherein: Mn represents manganese in the III or IV oxidation state, each X is independently a co-ordinating or bridging species selected from H.sub.2 O, O.sub.2.sup.-, O.sup.2-, OH.sup.-, SH.sup.-, S.sup.2-,&gt;S=O, Cl.sup.-, N.sub.3.sup.-, SCN.sup.-, N.sup.3-, RCOO.sup.-, NH.sub.2.sup.- and NR.sub.3 where R is hydrogen, alkyl or aryl (optionally substituted);

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Ridgewood, NJ, United States of America

Judith L Kerschner