Chemtura Corporation

Uniroyal Chemical Company, Inc.

Lanxess Solutions US Inc.

Crompton Gmbh

Lanxess Corporation

Infineum International Limited

Stieber, Joseph

Robert G Rowland

Cyril A Migdal

John R Baranski

Ronald Abbott

Jacob I Emert

Joseph F Stieber

William D Sigworth

Jie Cheng

Mark Richardson

Theodore E Nalesnik

Frederick D Osterholtz

Rolfe J Hartley

David J Sikora

Tushar Kanti Bera

Joseph P Hartley

Clifford M Pratt

Huiyuan Chen

Bruce W Downs

Subban Ramesh

Kevin DiNicola

Cyril Migdal

Joseph Peter Hartley

Ronald D Abbott

Joseph F Stiebler

Liquid alkylated N-phenyl-α-naphthylamine (PANA) compositions are disclosed containing a high concentration of mono-alkylated PANA and low levels of di-alkylated and less than 1% by weight of unsubstituted PANA. The novel compositions may be prepared by controlled alkylation of PANA with propylene oligomers followed by subsequent alkylation with at least one second olefin.

Liquid mono-alkylated N-phenyl-α-naphthylamine compositions and methods of manufacturing the same

Alkylated diaryl amines further substituted by an alkoxy group on one or more aryl carbon atoms exhibit excellent antioxidant activity in lubricant compositions.

Alkylated alkoxydiarylamine antioxidants

Diaryl amines are selectively alkylated by reaction with branched olefins, which olefins are capable of forming tertiary carbonium ions and can be conveniently prepared from readily available branched alcohols. The diaryl amine products are effective antioxidants and often comprise a high amount of di-alkylated diaryl amines and a low amount of tri- and tetra-alkylated diaryl amines.

Diaryl amine antioxidants prepared from branched olefins

Lubricant compositions comprising a lubricating oil and a mixture of one or more alkylated diarylamine and one or more alkylated hydroxydiarylamine exhibit excellent antioxidant and deposit control performance.

Lubricant compositions stabilized by mixtures of diarylamine and hydroxydiarylamine antioxidants

Certain alkylated 3-hydroxyphenylamine antioxidants wherein one phenyl is substituted by at least one hydroxyl group at the 3-position relative to the amine and the other phenyl is substituted by at least one substituent having 4 or more carbon atoms are surprisingly effective antioxidants, especially in lubricating oils.

Alkylated 3-hydroxydiphenylamine antioxidants

Liquid diphenylamine compositions comprising predominately p,p'-di-alkylated diphenylamines and low amounts of mono-alkylated diphenylamines are prepared by adding an olefin to a mixture comprising mono-alkylated diphenylamines, di-alkylated diphenylamines, Lewis acid catalyst and an amount of another olefin sufficient to suppress dealkylation of the alkylated diphenylamines.

Selective alkylation method for producing p, p'-di-alkylated diphenylamine antioxidants

Radical initiated reactions of phenylenediamines with alkylated aromatic amines produce an antioxidant mixture containing cross reaction products of the phenylenediamines and alkylated aromatic amines which are useful, for example, as antioxidants, stabilizers, and antiozonants for lubricants, electronic chemicals, rubbers, urethanes and other polymer resins, crop protection, pharmaceuticals, dyes and toners.

Cross products and co-oligomers of phenylenediamines and aromatic amines as antioxidants for lubricants

Tetra-alkylated phenylenediamine compounds useful as ashless TBN sources for lubricating oil compositions that are compatible with fluoroelastomeric engine seal materials and meet copper corrosion requirements, and lubricating oil compositions containing such phenylenediamine compounds.

Lubrication and lubricating oil compositions

An alkylated 1,3-benzenediamine compound used as a deposit-control lubricant additives for organic materials including lubricating oil, gasoline, and diesel fuels. The invention improves the oxidative stability of the lubricants and fuels by adding the alkylated 1,3-benzenediamine compound. The alkylated 1,3-benzenediamine compound is formed using a catalytic hydrogenation that alkylates the 4 and/or 6 position of the central aromatic ring.

Alkylated 1,3-benzenediamine compounds and methods for producing same

Compositions in the form of lubricating oil compositions, greases, fuels or functional fluids containing, in the form of Michael adducts, N-substituted phenylenediamine additives in which at least one of the substituents on the N atoms carries a carbonyl group that is connected to an alkyl, alkoxyalkyl, or alkylthioalkyl group either directly or via an oxygen atom.

Additive compositions

Reaction products of mercaptobenzothiazoles, mercaptothiazolines, and mercaptobenzimidalzoles with epoxides as lubricant additives

Fuels, especially hydrocarbon fuels, and lubricants, especially lubricating oils, contain a class of anti-corrosion, anti-wear, anti-fatigue, and extreme pressure additives that are derived from 1,3-dithiolane-2-thiones.

1,3 dithiolane-2-thione additives for lubricants and fuels

Provided is a composition comprising fatty acid bis-amide, inorganic particulate such as pumice, cellulosic particulate, thermoplastic and maleic anhydride grafted polyolefin. The combination of an ethylene bis-amide and a minor amount of pumice produces cellulosic-thermoplastic composite that has superior extrusion properties over conventional metal stearate/ethylene bis-stearamide (EBS) compositions such as improved flex strength and resistance to water absorption.

Growing community of inventors

Woodbridge, CT, United States of America

Robert G Rowland