Exxonmobil Chemical Patents Inc.

Exxon Chemical Patents, Inc.

Other

David Yen-Lung Chung

Timothy Daniel Shaffer

Robert Norman Webb

Michael Francis McDonald

Walter Harvey Waddell

Scott Thomas Milner

Andy Haishung Tsou

Hsien-Chang Wang

Michael Gerard Matturro

Donald Sheley Tracey

Richard Dwight Hembree

Robert Christopher Napier

Anthony Jay Dias

Toshio Suzuki

Weiqing Weng

Raymond Lee Tabler

Donald S Tracey

Robert C Napier

Caiguo Gong

Maneesh Bahadur

Anil Kumar Saxena

Yuan-Ju Chen

Richard C Yeh

John Patrick Soisson

Dirk Frans Rouckhout

Chia Shian Chee

Yuan-Ju (Ray) Chen

Dirks F Rouckhout

Michael Francis Mcdonald

The invention discloses improved processes to halogenate polymers. In particular, the invention discloses to improved processes to halogenate polymers made from C-10isoolefins.

Halogenation processes

The invention provides for processes to produce elastomeric compositions, the processes including contacting at least one elastomer with a processing aid, wherein the processing aid includes the reaction product of at least one functionalized polymer having at least one anhydride group contacted with at least one polyamine, wherein the at least one polyamine includes at least one primary amine. The invention also provides for articles such as innerliners for tires produced from the aforementioned elastomeric compositions.

Processing aids for elastomeric compositions

The invention provides for processes to produce elastomeric compositions, the processes including contacting at least one elastomer with a processing aid, wherein the processing aid comprises at least one functionalized polymer having at least one halogen group. The invention also provides for articles such as innerliners for tires produced from the aforementioned elastomeric compositions.

The invention provides for processes to produce elastomeric compositions, the processes including contacting at least one elastomer with a processing aid, wherein the processing aid comprises at least one functionalized polymer having at least one anhydride group. The invention also provides for articles such as innerliners for tires produced from the aforementioned elastomeric compositions.

The invention relates to new polymerization processes using hydrofluorocarbons to produce polymers. In particular, the invention relates to new polymerization processes using turbulent flow reactor systems using diluents including one or more hydrofluorocarbon(s) to produce polymers.

Reactor systems for use in polymerization processes

The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent.

Polymerization processes

The invention relates to novel air barriers made from elastomeric compositions. In particular, the invention relates to novel air barriers such as innerliners, air sleeves, and innertubes made from novel Cto Cisoolefin based polymers with new sequence distributions or that are substantially free of long chain branching.

Elastomeric compositions, air barriers, and processes for the making the same

The present invention provides a thermoplastic composition which may be unvulcanized or vulcanized. The thermoplastic composition can be a blend of a thermoplastic engineering resin, a halogenated terpolymer of a Cto Cisomonoolefin, a para-alkylstyrene, and a multiolefin. The engineering resin can be a polyamide, such as nylon 6/66 copolymers for example. The isomonoolefin can be an isobutylene for example. The multiolefin can be a Cto Cdiene, such as isoprene for example.

Thermoplastic elastomer compositions and methods for making the same

The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers substantially free of long chain branching. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene, and a multiolefin, preferably a conjugated diene, more preferably isoprene, substantially free of long chain branching.

Polymers substantially free of long chain branching

The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel halogenated polymers with new sequence distributions. In particular, the invention relates to halogenated copolymers of an isoolefin, preferably isobutylene, and a multiolefin, preferably a conjugated diene, more preferably isoprene, with new sequence distributions.

Halogenated polymers with new sequence distributions

The present invention includes blends of a halogenated elastomer such as a butyl rubber or an interpolymer of, on one embodiment, a Cto Cisomonoolefin, a para-methylstyrene and a para-(halomethylstyrene), the interpolymer having been pre-mixed with an exfoliating compound and clay, the entire blend forming a nanocomposite in one embodiment. The clay may or may not have undergone an additional exfoliating treatment prior to blending with the halogenated elastomer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an air barrier.

Low permeability nanocomposites

The present invention is a blend of an halogenated elastomer and a clay, desirably an exfoliated clay, to form a nanocomposite suitable for an air barrier. In one embodiment, the halogenated elastomer is a polymer comprising Cto Cisoolefin derived units, a para-methylstyrene derived units, and para-(halomethylstyrene) derived units. In another embodiment, the halogenated elastomer is a butyl-type rubber. The clay may or may not have an additional exfoliating treatment present prior to blending with the interpolymer. The interpolymer/clay mixture forms a distinct phase in the nanocomposite blend of the invention. The blend of the invention has improved air barrier properties and is suitable as an innerliner or innertube.

The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene, and an alkylstyrene, preferably methylstyrene, even more preferably para-methylstyrene, with new sequence distributions. The copolymer may optionally be halogenated.

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Bellaire, TX, United States of America

David Yen-Lung Chung