Chevron Oronite Company LLC

Chevron Chemical Company LLC

Gulf Research & Development Company

University of Southern Mississippi

Chevron Research & Technology Company

Chevron Research Company

Gulf Oil Corporation

Chevron Research and Technology Company, a Division of Chevron U.s.a.

Chevron Oronite LLC

Chevron Chemical Corporation

James Joseph Harrison

William R Ruhe, Jr

Kenneth Dale Nelson

Robson F Storey

Casey Don Stokes

David L Beach

Mitra Hosseini

Kelby Simison

Wilford S Baker

Curtis Bay Campbell

Charles M Selwitz

Nemesio Martinez-Castro

Eugene Edward Spala

Paula S Rogers

Jesse Meyer

William F King

Richard J Nelson

Edward T Sabourin

Curt B Campbell

Anatoli Onopchenko

John P Pellegrini, Jr

John McDonald

Juan A Buitrago

Terry V Friesen

Jack E Morris

Jacques Cazin

Roger C Williamson

Kenneth D Nelson

D Kenneth Nelson

Disclosed is a method of preparing terminally functionalized telechelic polymers using a cationic living polymer product or a terminal tert-chloride chain end of a carbocationic quasiliving polymer product, which comprises quenching the polymer product with a functionalized N-substituted pyrrole to thereby introduce the functionalized N-substituted pyrrole at the terminal reactive polymer chain end(s). A method is also disclosed whereby the N-substituent may be derivatized to a basic amine containing functional group. Also disclosed are the terminal functionalized polyisobuyl N-substituted pyrrole compounds where the polyisobutyl group is substituted at the 2 and 3 position of the N-substituted pyrrole.

Amine-terminated telechelic polymers and precursors thereto and methods for their preparation

An oil-soluble lubricating oil additive composition prepared by the process which comprises reacting (A) reacting a copolymer of an (i) an unsaturated acidic reagent; and (ii) a mono-olefin, with at least one linking hydrocarbyl di-primary amine, thereby producing a hybrid succinic anhydride copolymer having from about 10% to about 90% unreacted anhydride groups; and subsequently (B) reacting the hybrid succinic anhydride copolymer with a second amine compound, thereby producing the succinimide; and (C) reacting the succinimide with at least one post-treating agent selected from a cyclic carbonate, a linear mono-carbonate, a linear poly-carbonate, an aromatic polycarboxylic acid, an aromatic polycarboxylic anhydride, an aromatic polycarboxylic acid ester, or mixtures thereof.

Post-treated additive composition and method of making the same

The present invention is directed to Mannich condensation product sequestering agents or mixtures of Mannich condensation product sequestering agents for use in fuels and lubricating oils. The present invention is also directed to a process for preparing the Mannich condensation product sequestering agents. The present invention is also directed to a product formed by combining, under reaction conditions, a polyisobutyl-substituted hydroxyaromatic compound, an aldehyde, an amino acid or ester thereof, and an alkali metal base to form the Mannich condensation product sequestering agent. The present invention is also directed to a lubricating oil composition, a lubricating oil concentrate, a fuel composition, and a fuel concentrate having the Mannich condensation product sequestering agents of the present invention.

Mannich condensation products useful as sequestering agents

The present invention is directed to a method for preparation of polyolefins containing exo-olefin chain ends. The method involves quenching a cationic quasi-living polyolefin polymer system with a nitrogen-containing five-membered aromatic ring having at least two hydrocarbyl substituent compounds attached to the ring.

Method for preparation of polyolefins containing exo-olefin chain ends

The present invention is directed to a method for preparing polyolefins containing a high percentage of exo-olefin chain ends. The method involves ionizing a polyolefin containing tert-chloride chain ends and reacting the ionized polyolefin with one or more nitrogen-containing five-membered aromatic ring or one or more hindered secondary or tertiary amines, or mixtures thereof.

Method for preparing polyolefins containing a high percentage of exo-olefin chain ends

An alkylated hydroxyaromatic compound is disclosed which is prepared by reacting at least one hydroxyaromatic compound with at least one branched olefinic propylene oligomer having from about 20 to about 80 carbon atoms in the presence of an acid catalyst, wherein the at least one branched olefinic propylene oligomer is substantially free of any vinylidene content. The alkylated hydroxyaromatic compound has been determined to be substantially free of endocrine disruptive chemicals when the effects were quantified on pubertal development and thyroid function in the intact juvenile female rat.

Alkylated hydroxyaromatic compound substantially free of endocrine disruptive chemicals

Disclosed is a process for preparing a molybdated succinimide complex, the process comprising: wherein R is an about Cto Calkyl or alkenyl group, R' is a straight or branched-chain alkylene group having 2 to 3 carbon atoms, x is 1 to 11, and y is 1 to 10, with an &#x3b1;,&#x3b2;-unsaturated mono-carboxylic acid or carboxylic acid ester, in a charge mole ratio of the &#x3b1;,&#x3b2;-unsaturated mono-carboxylic acid or carboxylic acid ester to the succinimide of formula I or formula II or mixtures thereof of about 0.1:1 to about 6:1, and wherein the reaction temperature is no greater than about 135&#xb0; C.; and

Process for preparation of low molecular weight molybdenum succinimide complexes

Disclosed is a process for preparing a molybdated succinimide complex, the process comprising: wherein R is an alkyl or alkenyl group having a number average molecular weight of about 500 to about 5,000, R' is a straight or branched-chain alkylene group having 2 to 3 carbon atoms, x is 2 to 11, and y is 1 to 10, with an &#x3b1;,&#x3b2;-unsaturated mono-carboxylic acid or carboxylic acid ester, in a charge mole ratio of the &#x3b1;,&#x3b2;-unsaturated mono-carboxylic acid or carboxylic acid ester to the succinimide of formula I or formula II or mixtures thereof of greater than 1.05:1 to about 6:1, and wherein the reaction temperature is in the range of from greater than 80&#xb0; C. to no greater than about 150&#xb0; C.; and

Process for preparation of high molecular weight molybdenum succinimide complexes

The present invention provides for polyisobutenyl sulfonates, methods for preparing them, and composition employing them; wherein said polyisobutenyl sulfonates have improved low temperature and high temperature viscometric properties. The polyisobutenyl sulfonates are prepared by sulfonating polyisobutene and reacting the polyisobutenyl sulfonate with an alkali metal or alkaline earth metal, wherein the polyisobutene is characterized by having at least 90 mole percent methyl-vinylidene, a number average molecular weight of about 350 to 5,000, and a ratio of weight average molecular weight to number average molecular weight M/Mof from about 1.01 to about 1.4.

Polyisobutenyl sulfonates having low polydispersity

Growing community of inventors

Novato, CA, United States of America

James Joseph Harrison