Bridgestone Corporation

Firestone Polymers, LLC

Other

Christopher G Robertson

William L Hergenrother

Terrence Eugene Hogan

James Herman Pawlow

Xiaorong Wang

Christine M Rademacher

Yaohong Chen

James D Ulmer

Waruna C B Kiridena

Michael C Davis

Alberto Scurati

David F Lawson

Yuan-Yong Yan

Daniel F Graves

Amy M Randall

Kevin Michael McCauley

Georg G A Böhm

Hideki Kitano

Arif Omer Gozen

Sandra M Warren

Steven Luo

James E Hall

Jason T Poulton

Chenchy Jeffrey Lin

Jessica C Kurasch

Sandra Warren

Mitch Barry

Jeffrey Quinn

Hiroshi Mouri

Sheel Agarwal

Mark Arigo

Takayuki Yako

Atsushi Fukushima

Noriko Mori

Chenchy J Lin

Maria Tallman

Maria E Uhall

Kevin M McCAULEY

Kevin M Mccauley

A polymeric composition includes a diene elastomer; an azodicarboxy compound; and a reinforcing filler comprising silica. The composition is not foamed. A method for preparing a polymeric composition includes mixing in one or more steps: a diene elastomer; an azodicarboxy compound; and a reinforcing filler. The mixing temperature is less than 160&#xb0; C. in mixing steps in which the azodicarboxy compound is present. In an embodiment, the mixing temperature is kept below the decomposition temperature of the azodicarboxy compound.

Azodicarboxy additives for rubber compositions

A nanoparticle includes a copolymer comprising a vinyl-aromatic monomer and a heterocyclic monomer. The copolymer is crosslinked with a multifunctional crosslinking agent polymerizable through an addition reaction. A nanoparticle and elastomer composition is disclosed. Several methods of mixing heterocyclic and non-heterocyclic monomer nanoparticles into an elastomer are also disclosed. These methods include mixing in a multi-elements static mixer and an intermeshing mixer with venting, among others.

Nanoparticle fillers and methods of mixing into elastomers

The present disclosure is directed to rubber compositions containing a chemical additive capable of generating or enhancing strain-induced crystallization into the compositions, and tires containing the rubber compositions in one or more components such as sidewalls or treads. The chemical additive is at least one nucleating agent of formula (I) or formula (II). As well, certain embodiments relate to methods for achieving reduced wear or improved durability in a tire tread or tire sidewall by using the chemical additives.

Rubber compositions and uses thereof

A wake-up alarm with occupant-sensing apparatus attached to a bed which is configured via wireless protocol with a personal computing device of the occupant of the bed. During an alarm period, defined by a turn-on time and turn-off time, the alarm will emit an alarm sound when an occupant is detected in the bed. During the alarm period, the alarm cannot be disabled.

Wireless wake-up alarm with occupant-sensing apparatus

A process for treating a polymer having a hydrolyzable functionality, the method comprising: (i.) providing a polymer having hydrolyzable functionality; and (ii.) introducing a stabilizing agent to the polymer, where the stabilizing agent is defined by the formula (I) where &#xf7; is a hydrolyzable group that forms an acidic species upon hydrolysis, where R, R, and Rare each independently a halogen atom, a hydrocarbyl group, a hydrocarboxylate group, or a hydrocarbyloxy group.

Stabilization of polymers that contain a hydrolyzable functionality

Compositions and methods are included for preparing a hairy polymeric nanoparticle including first and second shell block polymer arms are at least partially phase-separated and surround a polymeric core. One type of polymeric arm can have a greater polarity than the other type(s) of polymeric arms. A rubber composition including the hairy nanoparticles is also provided.

Hairy polymeric nanoparticles with first and second shell block polymer arms

The present invention provides a rubber composition comprising (a) a liquid polymer, (b) polymer nanoparticles, and (c) a rubbery matrix. The composition may comprise less or even no aromatic oil. Rubber articles manufactured from such composition, such as tires and power belts, have gained improved reinforcement and controllable hysteresis properties.

Combined use of liquid polymer and polymeric nanoparticles for rubber applications

The present disclosure is directed to tire rubber compositions containing at least one rubbery polymer (with 10 to 100 weight percent of monomer units derived from conjugated diene monomer having between 4 and 8 carbon atoms and 0 to 90 weight percent of monomer units derived from vinyl aromatic monomer); 0.5 to 100 phr of silica filler; 0.05 to 20 phr of a bi-functional silica coupling agent; and 1 to 30 phr of a non-elastomer reactive filler reinforcing agent capable of interacting with at least two silica particles. The bi-functional silica coupling agent and the filler reinforcing agent are utilized in a weight ratio of from 1:100 to 1:0.2. Also disclosed are methods for preparing the tire rubber compositions.

Rubber composition with improved bis-silane reinforcement

The present disclosure is directed to methods for preparing rubber compositions where those rubber compositions comprise at least one telechelic polymer and at least one filler. The methods make use of a mixer that includes a mixing chamber and at least one rotor with wings of specified configuration. Use of the disclosed methods yields a rubber composition with improved properties including an improved dispersion index after master batch mixing as compared to the same rubber composition mixed using standard 4 wing mixers.

Mixing of telechelic rubber formulations

Branched polymers including multi-branched polymers, functionalized branched polymers, star-branched polymers, and dendigraft polymers. Methods for the synthesis of branched polymers and method for the use of branched polymers in tire components are also included.

Branched polymers and methods for their synthesis and use

Elastomeric interpolymers comprising at least two, or more, cyclic olefin monomers that are prepared by ring opening metathesis polymerization, and that are characterized by having no crystallinity, a glass transition temperature (T) of less than &#x2212;80&#xb0; C., and a number average molecular weight (M) of at least 40 kg/mole, and functionalized products thereof. A ring opening metathesis polymerization process for producing the elastomeric interpolymers having no crystallinity. Uses of the elastomeric interpolymers in applications such as rubber compounds, tires, and the like. Cores of golf balls that are prepared by using metathesis polymerization produced elastomeric interpolymers having 0 to about 30% crystallinity.

Elastomers, process for preparation, and uses thereof

Growing community of inventors

Akron, OH, United States of America

Christopher G Robertson