Chemtura Corporation

Crompton Gmbh

Chemtura USA Corporation

Qinggao Ma

John M Wefer

Paul Stott

William A Wortman

Cyril A Migdal

David J Sikora

Abuzar Syed

Leigh Cameron Allen

Ronald J Muir

Jin-Yun Wang

Paul Edwin Stott

Mitchel Cohn

Kirk A Schlup

Huiling Ding

Jay Wang

John-Louis DiFlavio

Roy Russell

Sung Chul Hong

Cyrill A Migdal

Paul E Stott

Overbased MgO dispersions with high magnesium content and acceptably low viscosities are prepared without gel formation by heating to 280-360&#xb0; C. under high pressure in a sealed reactor a mixture of MgO, selected dispersants, low MW carboxylic acids, water and a hydrocarbon solvent having a boiling point below 280&#xb0; C. No additional solubilizing or dispersing agents, promoters or reactants such as carbon dioxide, amines, alcohols etc are needed to obtain the desired dispersions. Compositions such as lubricating oils and fuels containing the overbased magnesium dispersions as additives are also disclosed.

Pressure process for overbased magnesium oxide dispersions

Overbased MgO dispersions with high magnesium content and acceptably low viscosities are reproducibly prepared without gel formation by heating to 280-360&#xb0; C. a mixture of MgO, selected dispersants, low MW carboxylic acids, water and a combination of high boiling hydrocarbon and organic diluent, wherein water is more than 8%, typically more than 10% of the reaction mixture. No additional solubilizing or dispersing agents, promoters or reactants such as carbon dioxide, amines, alcohols etc are needed to obtain the desired dispersions. Compositions such as lubricating oils and fuels containing the overbased magnesium dispersions as additives are also disclosed.

Overbased magnesium oxide dispersions

A compound having the formula: Rand Rtogether with the carbon atoms to which they are bonded are joined together to form a C-Cring. The C-Cring may be substituted with one or more substituents or unsubstituted. The C-Cring may contain one or more heteroatoms. The C-Cring may be saturated, partially unsaturated, or fully unsaturated.

Acridan derivatives as antioxidants

Lubricating oil compositions containing (a) at least one oil of lubricating viscosity and (b) an effective amount of at least one thio-functionalized phenylenediamine compound of the general formula: wherein R, R, R, Rand n are as defined herein are provided. Methods of operating an engine employing the lubricating oil composition are also provided.

Lubricating oil compositions

A diaromatic amine compound having the general formula: wherein Rand Rtogether with the carbon atoms to which they are bonded are joined together to form a C-Cring, and Ris an allyl, benzyl, or methallyl group. R, R, and Rare independently hydrogen, C-Calkyl group, C-Calkenyl group, C-Ccycloalkyl group, C-Caryl group, C-Carylalkyl group, or C-Calkoxy group.

Diaromatic amine derivatives as antioxidants

Tetraaromatic diamine compounds having the general formula: are provided wherein a is 0-3; b, c and d independently are integers from 0-5, Rand Rtogether with the carbon atoms to which they are bonded are joined together to form a substituted or unsubstituted Cto about Cring, saturated, partially unsaturated or fully unsaturated, optionally substituted with one or more heteroatoms, a is 0-3; b, c and d independently are integers from 0-5, R, R, Rand Rare independently hydrogen, a straight or branched C-Calkyl or alkylene group optionally substituted with one or more substituents, a substituted or unsubstituted C-Ccycloalkyl, a substituted or unsubstituted C-Caryl, a substituted or unsubstituted C-Carylalkyl, a straight or branched C-Calkoxy group optionally substituted with one or more substituents or two Rsubstituents and/or two Rsubstituents and/or two Rsubstituents on adjacent carbon atoms of the aromatic ring associated therewith can be joined together to form a substituted or unsubstituted Cto about Cring, saturated, partially unsaturated or fully unsaturated, optionally substituted with one or more heteroatoms. Lubricating oil compositions containing the tetraaromatic diamine compound additives are also provided.

Tetraaromatic diamine compounds as antioxidants

Disclosed herein are p-urea phenyl derivatives of the formula: wherein Rand Rare independently selected hydrocarbyl groups. These derivatives are useful as haze reducing agents in propylene polymers and copolymers.

&#x3b2;-crystalline polypropylenes

Disclosed herein are urea phenyl derivatives of the formula: wherein each R is an independently selected hydrocarbyl group and n is 2 or 3, and their use as nucleating agents for propylene polymers.

Urea phenyl derivatives and their use as polypropylene nucleating agents

Disclosed herein are aromatic amide derivatives of the formulae: wherein

&#x3b2;-Crystalline polypropylenes

Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of at least one nitroso inhibitor of the structure: wherein R, R, R, and Rare independently selected from the group consisting of hydrogen, nitro, nitroso, halogen, COOR wherein R is hydrogen or alkyl, alkyl, and heteroatom-substituted alkyl; or adjacent groups R, R, R, and Rcan be taken together to form a substituted or unsubstituted fused six-membered ring. Also disclosed is a composition of matter comprising:

Ortho-nitrosophenols as polymerization inhibitors

A composite composition is disclosed that comprises the reaction product of a mixture of a styrenic polymer, as defined herein, a polar component having nucleophilic functional groups, and from 0.5 to 10 wt % of a compatibilizer having the formula:R(I)-(styrene)-[(styrene)(X)]&#x2014;I(R)wherein:

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Naugatuck, CT, United States of America

Qinggao Ma