Exxonmobil Chemical Patents Inc.

Raphael Frans Caers

Hubertus Joseph Beckers

Allen David Godwin

Eddy Theophile Van Driessche

John Stephen Godsmark

Ramzi Yanni Saleh

John Richard Shutt

Georges M K Mathys

Didier A Naert

Thomas Marshall Larson

Paul Hamden Daniels

Stephen Harold Brown

Claudius Gosse

Pierre Jean Paul Legrand

Ronald Dean Garton

Luc Roger Marc Martens

David Wayne Turner

Arie Van Vliet

Stephen Wayne Beadle

Carolyn B Duncan

Jane C Cheng

Luc R M Martens

Georges Marie Mathys

Charles Morris Yarbrough

Jose M Vargas

Philippe Louis Buess

Eddy T A Van Driessche

Eddy Theophyle Andrea Van Driessche

Marcel Johannes Janssen

Roger Eijkhoudt

James L Propp

Ernest E Green

J Richard Shutt

Jon Edmond Randoph Stanat

Georges Marie K Mathys

Jihad Mohammed Dakka

Kenneth L Riley

Jon E Stanat

Karla Schall Colle

Krishna Kulai Rao

Michael J Keenan

Nicolaas Anthony De Munck

Hans K T Goris

Paul Hamilton

Jon E R Stanat

Aad Gerrit Oskam

John Lyford, Iv

Marc P H Puttemans

Brady A Compton

Magdiel Agosto

Corey W Reed

Jean-Jacques G Muls

James T Ritchie

Bruce D Lilly

Edwin Kooke

Mauritz Kelchtermans

Luc Rm Martens

Alfons Cuyckens

Luc Roger Mare Martens

Bertrand Raymond Da Cruz

Michel J P Lepagnol

Cesar M Cheng Guajardo

Claudius P Gosse

John J Houben

Pierre J P Legrand

Eddy Theophile Andrea Van Driessche

Klaas Bandstra

Berend Jan Van Der Veen

Georges Maria Mathys

Didier Naert

Luc RM Martens

Nicolaas A De Munck

Jon ER Stanat

Ken L Riley

Luc M R Martens

Hubertus J Beckers

Thomas Larson

Pierre Legrand

Ronald D Garton

Ronald Garton

John Lyford Iv

Michel Lepagnol

Hubertus Beckers

Bertrand Da Cruz

Triglyceride and other polyol ester PVC plasticizers can be produced by recovery of branched C6 to C9 aldehydes from a hydroformylation product, optional hydrogenation to the alcohol, oxidation to the acid with oxygen and/or air, recovery of the resulting acid, and esterification with glycerol, ethylene glycol, propylene glycol or mixtures thereof. The branched alkyl chains comprise at least 10% methyl branching. Special triglycerides are derived from branched aliphatic acids having alkyl chains with average carbon numbers from 6 to 9 and at least 10% methyl branching. These triglycerides are fast fusing plasticizers if before esterification with glycerol, an aryl acid is introduced together with the aliphatic acids.

Polyol ester plasticizers and process of making the same

The present invention relates to alcohols and in particular to Cto Calcohols that are used in the production of esters.

Processes relating to alcohols for the production of esters

Mixed butene streams containing butene-1 and isobutylene and optionally butene-2 are hydroformylated under conditions that hydroformylates all the monomers to yield a mixture of valeraldehydes. Higher temperatures and/or longer residence times and/or higher partial pressure of carbon monoxide than in conventional processes are used to ensure hydroformylation of all the monomers.

Hydroformylation of butenes

The conversion and run length for oligomerization of olefins over a molecular sieve catalyst in a tubular reactor is improved by controlling the peak temperature to not exceed 50 degrees C. above the temperature of the temperature control fluid exiting the shell side outlet of the reactor. A tubular reactor containing molecular sieve catalyst is provided with a multipoint thermocouple in at least one tube, and optionally with a bottom design adapted for fast unloading of the molecular sieve catalyst from the tubular reactor.

Oligomerisation of olefins with zeolite catalyst

Esters of cyclohexane polycarboxylic acids are used as plasticisers for polyvinyl chloride to enable products with comparable mechanical properties to be obtained using less polyvinyl chloride. Use of these esters also produces formulations with increased stability to ultra-violet light, improved low temperature properties, lower viscosity and improved processability as well as reduced smoke on burning. The esters of cyclohexane polycarboxylic acids may be used alone or in admixture with other plasticisers when the esters of cyclohexane polycarboxylic acids may act as viscosity depressants. Fast fusing plasticisers may also be included. The formulations and processes of making these formulations are particularly useful in the production of a range of goods from semi-rigid to highly flexible materials and are particularly useful in the production of medical materials, toys, and food contact articles.

Plasticised polyvinyl chloride and processes for making the same

The invention relates to series reactor beds containing different oligomerization catalysts and having independent temperature control, and processes for the oligomerization of light olefins to heavier olefins using such series reactor beds.

Series catalyst beds

In the hydroformylation of C5-C14 olefins with cobalt catalyst to produce C6-C15 oxygenates, where offgasses from the hydroformylation or cobalt removal step contain volatile cobalt compounds, the cobalt compounds are recovered by scrubbing the offgas with a liquid, and recycling the liquid to the cobalt removal step. Suitable scrubbing liquids are the organic cobalt-depleted hydroformylation reaction product or a downstream derivative thereof, or an aqueous solution of a Cosalt, preferably such salt of formic acid.

Offgas cleanup in olefin hydroformylation

The efficiency of catalyzed batch esterification reactions is improved by the use of a particular temperature and pressure profile during the reaction cycle. In particular elevated pressure is maintained to prevent alcohol boil off during initial mixing and reaction of the reactants prior to any catalyst addition, and preferably the pressure is reduced rapidly after the desired reaction temperature has been reached.

Batch esterification

Acetals are formed from an aldehyde hydrogenation product mixture comprising alcohols and at most 2% of alde-hydes and the product is distilled to yield purified alcohols and a second stream containing acetals and/or unsaturated ethers.

Manufacture of purified alcohols

Esters of cyclohexane polycarboxylic acids are used as plasticizers for polyvinyl chloride to enable products with comparable mechanical properties to be obtained using less polyvinyl chloride. Use of these esters also produces formulations with increased stability to ultra-violet light, improved low temperature properties, lower viscosity and improved processability as well as reduced smoke on burning. The esters of cyclohexane polycarboxylic acids may be used alone or in admixture with other plasticizers when the esters of cyclohexane polycarboxylic acids may act as viscosity depressants. Fast fusing plasticizers may also be included. The formulations are particularly useful in the production of a range of goods from semi-rigid to highly flexible materials and are particularly useful in the production of medical materials such as blood bags and tubing.

Plasticised polyvinyl chloride

An alkylaromatic hydrocarbon composition prepared by the process which comprises oligomerizing an olefin selected from the group consisting of propylene, n-butene and mixtures thereof over an oligomerization catalyst, to form a oligomerization product comprising at least 95% by weight of mono-olefin oligomers of the empirical formula:CHwherein n is greater than or equal to 10, the mono-olefin oligomers comprise at least 20% by weight of olefins having at least 12 carbon atoms, and the olefins having at least 12 carbon atoms having an average of from 0.8 to 2.0 C-Calkyl branches per carbon chain. Sulfonation of the alkylaromatic hydrocarbon product produces an alkylaryl sulfonate mixture that exhibits advantageous properties, such as biodegradability and hard and cold water performance.

Preparation of alkylaromatic hydrocarbons and alkylaryl sulfonates

Mixed butene streams containing butene-1 and isobutylene and optionally butene-2 are hydroformylated under conditions that hydroformylates all the monomers to yield a mixture of valeraldehydes.

Processes related to the hydroformylation of butenes

Esters of cyclohexane polycarboxylic acids are used as plasticisers for polyvinyl chloride to enable products with comparable mechanical properties to be obtained using less polyvinyl chloride. Use of these esters also produces formulations with increased stability to ultra-violet light, improved low temperature properties, lower viscosity and improved processability as well as reduced smoke on burning. The esters of cyclohexane polycarboxylic acids may be used alone or in admixture with other plasticisers when the esters of cyclohexane polycarboxylic acids may act as viscosity depressants. Fast fusing plasticisers may also be included. The formulations are particularly useful in the production of a range of goods from semi-rigid to highly flexible materials and are particularly useful in the production of medical materials such as blood bags and tubing.

Hydroformylation of butenes comprising isobutylene

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Edegem, Belgium

Raphael Frans Caers