Dow Global Technolgoies LLC

Rohm and Haas Company

Brian A Jazdzewski

Francis J Timmers

Timothy Todd Wenzel

Phillip Dene Hustad

Edmund M Carnahan

Daniel J Arriola

Paul C Vosejpka

Roger L Kuhlman

Clark H Cummins

David H Bank

William L Winniford

Robert J Wright

Nicole L Wagner

Warren E Smith

Guenter A Jueptner

Zahid Asif

Brian G Landes

Jeremy Chris Reyes

Stephen W King

David D Devore

Kim Louis Walton

Gary Robert Marchand

Colin LiPiShan

Benjamin C Poon

Didem Oner-Deliormanli

Ashwin R Bharadwaj

Edward D Daugs

Christophe R Laroche

Angela I Padilla-Acevedo

Paul R Elowe

Sara B Klamo

John B Cuthbert

Daniel A Aguilar

Cynthia Pierre

Keith Jeffrey Watson

Eric J Klinker

Robert P Dion

Ashish V Kotnis

Philip D Hustad

A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel; said method comprising adding to said petroleum hydrocarbon or liquid biologically derived fuel at least one compound that is a R, R, R, R, R, R, R, R, Rand R-substituted diaryl ether, wherein R, R, R, R, R, R, R, R, Rand Rindependently are hydrogen, hydrocarbyl or hydrocarbyloxy; wherein each compound having formula (I) is present at a level from 0.01 ppm to 20 ppm.

Diaryl ethers as fuel markers

A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel; said method comprising adding to said petroleum hydrocarbon or liquid biologically derived fuel at least one compound that is a R, R, R, R, R, R, Rand R&#x2014;substituted dibenzofuran, wherein R, R, R, R, R, R, Rand Rindependently are hydrogen, hydrocarbyl, hydrocarbyloxy, aryl or aryloxy; provided that R, R, R, R, R, R, Rand Rcollectively have at least two carbon atoms; wherein each compound having formula (I) is present at a level from 0.01 ppm to 20 ppm.

Substituted dibenzofurans as fuel markers

A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel; said method comprising adding to said petroleum hydrocarbon or liquid biologically derived fuel at least one compound that is a R, R, R, R, R, R, R, R, Rand R-substituted xanthene, wherein R, R, R, R, R, R, R, R, Rand Rindependently are hydrogen, hydrocarbyl, hydrocarbyloxy, aryl or aryloxy; wherein each compound of formula (I) is present at a level from 0.01 ppm to 20 ppm.

Xanthenes as fuel markers

The present invention relates to a dehydration composition and method of use thereof for drying gas streams, in particular natural gas streams, wherein the dehydration composition comprises (i) a glycol, (ii) an imidazole compound, and optionally (iii) one or more of an alkali metal carboxylate, an additional glycol different than (i), an alkanolamine, a phosphate acid, a salt of a phosphate acid, a borate acid, a salt of a borate acid, a sweetening agent, a low temperature viscosity improver, a corrosion inhibitor, an antifoaming agent, or mixtures thereof.

Composition and process for the dehydration of gases

Provided are compositions and their use as dispersant and/or detergent additives for lubricants. The compositions comprise an amine alkoxylate of the formula I: (I) wherein R-R, R'-R; x, x&#x2032;, A, A&#x2032; and A&#x2033; are as defined herein. 

Amine alkoxylate compositions and their use as lubricant additives

Embodiments of the invention provide block composites comprising a soft copolymer, a hard polymer and a block copolymer having a soft segment and a hard segment, wherein the hard segment of the block copolymer is the same composition as the hard polymer in the block composite and the soft segment of the block copolymer is the same composition as the soft copolymer of the block composite and their use as impact modifiers.

Block composites and impact modified compositions

Meta-block copolymers and a process for preparing a product mixture comprising meta-block copolymers by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more ethylenically unsaturated polymers, said unsaturation defining one or more polymer segments in each ethylenically unsaturated polymer, at least one polymer segment in at least one ethylenically unsaturated polymer being chemically distinguishable from at least one polymer segment in at least one other ethylenically unsaturated polymer, characterized in that each meta-block copolymer in the product mixture comprises a random distribution of said chemically distinguishable polymer blocks.

Production of meta-block copolymers by polymer segment interchange

Two or more chemically distinguishable ethylenically unsaturated polymers, at least one having from 0.001 to 50 mole percent unsaturation and at least one other having an expected Tg or measured Tm value greater than 100&#xb0; C. are cross-metathesized to form thermoplastic elastomers having improved performance properties.

Production of metathesis products by high melting polymer segment interchange

A polymerization process and the resulting polymer composition, said process comprising polymerizing one or more addition polymerizable monomers and a polymerizable shuttling agent in the presence of at least one addition polymerization catalyst comprising a metal compound or complex and a cocatalyst under conditions characterized by the formation of a branched polymer, preferably comprising pseudo-block molecular architecture.

Catalytic olefin block copolymers via polymerizable shuttling agent

A cross-metathesized product mixture is prepared by contacting a metathesis catalyst under metathesis conditions with a composition comprising two or more chemically distinguishable ethylenically unsaturated polymers, at least one of said ethylenically unsaturated polymers (first polymer) having from 0.001 to 50 mole percent unsaturation and at least one other of said ethylenically unsaturated polymers (second polymer) being an amorphous polymer having a Tg less than 0&#xb0; C. and having from 0.001 to 5 mole percent unsaturation.

Production of metathesis products by amorphous polymer segment interchange

A process for the polymerization of one or more addition polymerizable monomers and the resulting polymer composition, said process comprising contacting an addition polymerizable monomer or mixture of monomers in a reactor or reactor zone with a composition comprising at least one polymerization catalyst and a cocatalyst under polymerization conditions, characterized in that at least a portion of said polymerization is conducted in the presence of a multi-centered shuttling agent thereby causing the composition to have a bimodal molecular weight distribution.

Control of polymer architecture and molecular weight distribution via multi-centered shuttling agent

Cyclic oligomers containing ester linkages are polymerized in the presence of a catalyst having at least one oxygen atom bonded to two metal atoms. At least one of the metal atoms is a tin atom, which is preferably tetravalent, i.e., bonded to three other groups in addition to the oxygen atom. The other metal atom may also be another tin atom, which is again preferably tetravalent, or a zinc, aluminum or titanium atom. The catalyst may contain multiple oxygen atoms that are bonded to two such metal atoms as described. These catalysts are active, efficient polymerization catalysts. They are often liquids at polymerization temperatures. The catalysts can be formed in situ in the polymerization process, which provides additional flexibility in the process and increased storage stability of starting materials.

Catalysts and methods for polymerizing macrocyclic oligomers

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Midland, MI, United States of America

Brian A Jazdzewski