Advanced Elastomer Systems, L.p.

Exxon Chemical Patents, Inc.

Jacques Horrion

Trazollah Ouhadi

Krishna Venkataswamy

Raman P Patel

Sabet Abdou-Sabet

Donald N Schulz

Wai Y Chow

Jay D Audett

Richard G Austin

Angelo A Montagna

John Michael Scoarste

Kenneth O McElrath, Jr

Ernst Van Issum

Y Fujita

The invention relates to a method of high frequency welding of non-polar thermoplastic elastomers characterized in that said elastomers comprise a polar modifier. Furthermore, the invention relates to shaped articles obtainable by said method.

Method for high frequency welding of non-popular thermoplastic elastomers

The present invention relates to new block copolymers of chemically modified polyolefins and thermoplastic polyurethanes, copolyesters or copolyamides a method for the preparation of said block copolymers and their use for compatibilizing blends of polar and non-polar thermoplastic elastomers. The block copolymers according to the present invention can further be used for promoting the adhesion of thermoplastic elastomers onto various polar engineering resins.

Block copolymers of polyolefins with polyurethanes, copolyesters or

Desirable thermoplastic vulcanizates can be prepared from a polar engineering thermoplastic; a halogenated copolymer of p-alkylstyrene and an isomonoolefin having from 4 to 7 carbon atoms; and either an ethylene rubbery polymer or a diene based rubbery polymer or combinations thereof. The ethylene rubbery polymer desirably has at least one pendant carboxylic acid group, amine group, epoxy group, hydroxyl group or an anhydride of two carboxylic acid groups or combinations thereof. Desirable diene based rubbery polymers include epoxidized natural rubber and epoxidized homopolymers and copolymers of dienes.

Thermoplastic elastomer triblend from an engineering thermoplastic,

The invention relates to a method to adhere a hard cellulose ester compound to a surface of a soft thermoplastic elastomer compound and shaped composite articles comprising said components.

Composite article of cellulose esters and thermoplastic elastomers

Thermoplastic elastomers having improved surface properties

A thermoplastic elastomer composition has a plastic phase or matrix of an engineering thermoplastic such as an ester polymer and a crosslinked phase of cured acrylic rubbers. The rubbers are cured by a curing agent and contain at least two functionalized acrylic rubbers wherein the functional group such as a carboxyl, an epoxy, or a hydroxyl can be the same or different. The composition can be dynamically vulcanized and desirably when one of the functionalized acrylic rubbers is a terpolymer of ethylene-alkyl acrylate-unsaturated carboxylic acid, the composition has a single low temperature brittle point.

Co-cured rubber-thermoplastic elastomer compositions

A thermoplastic elastomer composition has a plastic phase or matrix of an engineering thermoplastic such as a polyamide and a crosslinked phase of cured acrylic rubbers. The rubbers contain at least two functionalized acrylic rubbers wherein the functional group such as a carboxyl, an epoxy, or a hydroxyl can be the same or different. The curing agents generally react via covalent bonding with the reactive functional groups of the rubbers. The composition can be dynamically vulcanized and when one of the rubbers is a terpolymer of ethylene-alkyl acrylate-unsaturated carboxylic acid, the composition has a single low temperature brittle point.

The invention relates to a soft thermoplastic elastomeric composition having improved resistance to oil swell and compression set comprising a blend of an engineering thermoplastic resin, a cured rubber concentrate and optionally a compatibilizer and a method for its preparation. The invention further relates to the cured rubber concentrate, a method for its preparation and the use thereof.

Soft thermoplastic elastomers having improved resistance to oil swell

Disclosed herein are block and random graft copolymer compositions comprising a base polymer of crystalline polyolefin to which is grafted at least one side or end chain of a hydroxy-ended polylactone, the process for making said graft copolymer compositions, and use thereof in engineering thermoplastic resins.

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Tilff, Belgium

Jacques Horrion