Exxonmobil Chemical Patents Inc.

Other

John A Clark

Sunny Jacob

Timothy Daniel Shaffer

Timothy D Shaffer

Michael F McDonald, Jr

Joel Edward Schmieg

Leming Gu

Mauritz Kelchtermans

Adam H Scott

Stephen T Dalpe

Torri L Rose

Michael F Mcdonald

Mauritz M Kelchtermans

Michael F Mcdonald Jr

This invention relates to a brominated elastomer composition comprising a free radical scavenger. The scavenger is present in the amount of at least about 0.05 wt % of the composition. The scavenger is added to the composition so that the Mooney viscosity of the composition does not increase by more than about 15% to about 40%, for up to about 15 days at 80&#xb0; C. The scavenger can be a sterically hindered nitroxyl ether, a nitroxyl radical, or both.

Mooney viscosity stable brominated elastomers

This invention relates to a method of preparing a brominated elastomer having a stabilized Mooney viscosity. The method includes polymerizing isomonoolefins and at least one polymerizable unit to obtain an elastomer/polymer; brominating the elastomer/polymer to form a brominated elastomer effluent; neutralizing the brominated elastomer effluent to form a neutralized effluent; volatizing off the hydrocarbon solvent; and recovering a brominated elastomer. In at least one point of the process, preferably prior to any significant temperature change in the brominated polymer, a Mooney stabilizer is added into the system. Portions of the Mooney stabilizer may be added at multiple points into the process.

Process for preparing a halogenated elastomer with improved Mooney viscosity stability

An adjustable gearshift pedal lever for motorcycles and the like designed for attachment to a shift arm. The lever may be designed in a variety of offset lengths that allow for an increase or decrease between the lever and the motorcycle footpeg. In addition, the lever may be raised or lowered vertically by the use of shims selectively placed between the shift arm and the gearshift pedal lever.

Adjustable shift lever assembly

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Seabrook, TX, United States of America

John A Clark