Exxonmobil Chemical Patents Inc.

Luke P Stephens

Periagaram Srinivasan Ravishankar

Yu Feng Wang

Florin Barsan

Douglas A Berti

Michael Brendan Rodgers

Michael B Rodgers

Yuan-Ju Chen

John Patrick Soisson

Marvin C Hill

Shawn W Mowry

Molly W Upton

To obtain an elastomeric composite crumb having a majority of the particle size distribution greater than 0.33 cm, the crumb is obtained by a process whereby the elastomeric composite comprises less than about 0.5 phr of a salt of a Cto Ccarboxylic acid, or 10 to 20 phr of a tackifying resin or a combination of both an absence of carboxylic acid and the presence of the tackifying resin. The use of one or both methods permits control of crumb particle size distribution in emulsion or solution processes for producing elastomeric nanocomposites. The elastomeric composite is also disclosed.

Filled elastomeric composite and process to control composite crumb size

A blended multimodal polymer product is disclosed that comprises a first polymer, wherein the first polymer is a homopolymer of propylene or a propylene copolymer having an ethylene or a Cto Colefin comonomer; and a second polymer, wherein the second polymer is a propylene homopolymer and a propylene copolymer having an ethylene or a Cto Colefin comonomer, and wherein the first polymer and second polymer have a difference in heat of fusion of about 25 J/g or more. Methods for making such a polymer product using at least two reactors in parallel and for separating a propylene-based polymer from a solvent using a liquid-phase separator are also disclosed.

Polyolefin adhesive compositions and methods of preparing the same

Polyolefin adhesive compositions and methods for preparing the same

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Houston, TX, United States of America

Luke P Stephens