Exxonmobil Chemical Patents Inc.

Didier A Naert

Allen David Godwin

Thomas Marshall Larson

Paul Hamden Daniels

Raphael Frans Caers

Claudius Gosse

Pierre Jean Paul Legrand

Stephen Zushma

Christine A Costello

Jihad Mohammed Dakka

Edmund John Mozeleski

Catherine Anne Faler

Lorenzo C DeCaul

Victor DeFlorio

Pierre Osterrieth

Diana S Smirnova

Bernard F Leroy

Nicolaas Anthony De Munck

Diana Smimova

Allen D Goodwin

Claudius P Gosse

Pierre J P Legrand

This disclosure relates to aromatic ester plasticizers, including methyl biphenyl carboxylic acid esters of alcohols having an average carbon number ranging from 9.0 to 9.4 and a degree of branching of 3.0 or less, preferably 2.2 or less, to mixtures of such plasticizers, to compositions comprising the plasticizers and to thermoplastic polymer, such as polyvinylchloride, that contains the plasticizers.

Plasticizers production and use

Provided are compounds of the following: wherein Ris a saturated or unsaturated cyclic hydrocarbon optionally substituted with an alkyl and/or an OXO-ester, and Ris a Cto Chydrocarbyl, preferably the residue of a Cto COXO-alcohol. Also provided are processes for making the compounds and plasticized polymer compositions containing said compounds.

Alkyl aromatic hydroalkylation for the production of plasticizers

Provided are mixtures of 1) compounds of the formula: wherein Ris a saturated or unsaturated cyclic hydrocarbon optionally substituted with an alkyl and/or an OXO-ester, and Ris a Cto Chydrocarbyl; and 2) one or more second plasticizers selected from the group consisting of alkyl terephthalates, alkyl phthalates, alkyl benzoate esters, di-benzoate esters, esters of cyclohexane polycarboxylic acids, and dialkyl adipates. Also provided are plasticized polymer compositions containing said mixtures.

Plasticizer blends and use thereof

A method for performing a flying grade switch in an ester production process, which preferably is operated in semi-continuous mode, maximizes plant equipment productivity while minimizing product cross-contamination. Mixed ester products of the process containing a C-Calkyl or isodecyl benzoate together with a higher molecular weight di-alkyl phthalate or cyclohexanoate, bring performance advantages such as improved permanence in plasticized PVC articles or improved processability in manufacturing these articles.

Ester production

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

Plasticizer blends of Cto Cdialkyl phthalates or Cto Ctrimellitates and Cto Cdialkyl adipates are provided. The blends may be used in the manufacture of flexible PVC formulations, for example, as wire and cable coatings, having in several embodiments, good performance over a wide temperature range and are particularly useful for automotive cables.

Plasticiser blends and compositions and articles made therefrom

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

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.

Cto Calkyl benzoates are used as plasticisers for polyvinyl chloride in particular in combination with plasticisers such as di-2-ethyl hexyl phthalate, diisononyl phthalate, di-2-propyl heptyl phthalate, diisodecyl phthalate or di-2-ethyl hexyl terephthalate. The use of the Cto Calkyl benzoates provides low viscosity low volatility plasticisers, which are fast fusing with lower hot bench gelation temperature and which can be used to reduce the staining problems associated with use of di-2-ethyl hexyl phthalate and diisononyl phthalate. The low viscosity of the Cto Calkyl benzoates allows the formulation of solvent free flexible PVC formulations meeting stringent VOC limitations.

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Brussels, Belgium

Didier A Naert