Marvin Lee Pigg Hill

US Patent:

20170009053, Jan 12, 2017

Filed:

Dec 15, 2014

Appl. No.:

15/114312

Inventors:

- Baytown TX, US
John P. Soisson - Houston TX, US
Luke P. Stephens - Humble TX, US
Michael B. Rodgers - Cedar Park TX, US
Marvin C. Hill - Spring TX, US

International Classification:

C08K 5/09
C08L 9/00
C08K 9/04

Abstract:

This invention relates to an elastomeric nanocomposite composition, the composition comprising at least one elastomer, at least one nanofiller, and an ionomer stabilizer in the amount of at least about 0.5 phr of the composition, the elastomer comprising units derived from isoolefins having from 4 to 7 carbon atoms and at least one multiolefin, and the nanofiller consisting of a layered filler, wherein the stabilizer is added to improve the stability of the Mooney viscosity of the composition over time.

US Patent:

20160168338, Jun 16, 2016

Filed:

May 3, 2013

Appl. No.:

14/777639

Inventors:

- Baytown TX, US
Shawn W. Mowry - Houston TX, US
Luke P. Stephens - Humble TX, US
Michael B. Rodgers - Cedar Park TX, US
Yuan-Ju Chen - Houston TX, US
Molly W. Upton - Baytown TX, US
Marvin C. Hill - Spring TX, US

International Classification:

C08J 3/21
C08L 23/28
C08L 25/16
C08K 3/34

Abstract:

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.