Caiguo C Gong

7371793, May 13, 2008

Mar 15, 2004

10/800455

Caiguo Gong - Pearland TX, US
Alan J. Oshinski - Friendswood TX, US
Beverly J. Poole - Houston TX, US
Jerry W. Ball - Conroe TX, US
Thomas W. Sykes - Santa Fe TX, US

ExxonMobil Chemical Patents Inc. - Houston TX

C08K 9/04

524445, 524447

This invention relates to nanocomposites comprising organo-clay and at least one stabilization functionalized thermoplastic polyolefin. Preferably the stabilization functionalized thermoplastic polyolefin is represented by the formula:T-(RG)Wherein.

7417093, Aug 26, 2008

May 21, 2007

11/804775

Karla S. Colle - Houston TX, US
Caiguo Gong - Pearland TX, US
Kevin R. Squire - Kingwood TX, US

ExxonMobil Chemical Patents Inc. - Houston TX

C08C 19/04
C08F 8/06

525387, 525383, 5253321, 5253319

In a process for functionalizing an α-olefin/diene copolymer, a copolymer comprising units derived from at least one α-olefin and units derived from at least one diene, which copolymer contains at least one double bond, is contacted in a reaction medium with an alkyl hydroperoxide in the presence of a catalyst comprising a metal of Group 5 or 6 of the Periodic Table or a compound thereof, under reaction conditions which promote formation of an oxirane ring or hydroxyl groups at the site of the double bond.

7485677, Feb 3, 2009

May 29, 2002

10/478281

Anthony Jay Dias - Houston TX, US
Andy Haishung Tsou - Houston TX, US
David Yen-Lung Chung - Bellaire TX, US
Weiqing Weng - Houston TX, US
Caiguo Gong - Pearland TX, US

ExxonMobil Chemical Patents Inc. - Houston TX

C08K 3/34
C08C 19/22
C08L 27/00

524445, 524552, 525379, 525380

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.

7501460, Mar 10, 2009

Jul 18, 2005

11/183361

Weiqing Weng - Houston TX, US
Caiguo Gong - Pearland TX, US
Anthony Jay Dias - Houston TX, US
Robert Norman Webb - Kingwood TX, US
James Peter Stokes - Houston TX, US

ExxonMobile Chemical Patents Inc. - Houston TX

C08J 3/20

523351, 524445, 524446, 524447

The present invention is a process to produce a nanocomposite of a elastomer and organic clay, e. g. an exfoliated clay, suitable for use as an air barrier. The process can include the steps of: (a) contacting a solution () of butyl rubber in an organic solvent with a halogen () to form a halogenated butyl rubber solution (); (b) neutralizing the halogenated butyl rubber solution; (c) functionalizing at least a portion () of the halogenated butyl rubber; (d) mixing a dispersion () of clay with the functionalized butyl rubber () to form a masterbatch () comprising a polymer-clay nanocomposite; (e) combining the masterbatch () with the rest of the halogenated butyl rubber solution () to form a second mixture (); (e) recovering the nanocomposite from the second mixture (). The nanocomposite so formed has improved air barrier properties and is suitable for use as a tire innerliner or innertube.

7514491, Apr 7, 2009

Jul 18, 2005

11/184000

Weiqing Weng - Houston TX, US
Anthony Jay Dias - Houston TX, US
Carmen Neagu - Friendswood TX, US
Beverly Jean Poole - Houston TX, US
Caiguo Gong - Pearland TX, US
James Richard Ayers - Highlands TX, US
Kriss Randall Karp - Copley OH, US
Molly Westermann Johnston - Baytown TX, US

ExxonMobil Chemical Patents Inc. - Houston TX

C08K 3/34

524445, 524446, 524447

A nanocomposite of a halogenated elastomer and an inorganic, exfoliated clay, suitable for use as an air barrier, is disclosed. The halogenated elastomer can be a polymer comprising Cto Cisoolefin derived units, para-methylstyrene derived units, and para(halomethylstyrene) derived units, or can be a butyl-type rubber. The nanocomposite can be formed by contacting an aqueous slurry of inorganic clay with a polymer cement while agitating vigorously to form emulsions or micro-emulsions to intimately mix the inorganic clay and the elastomer. The nanocomposite so formed has improved air barrier properties and is suitable for use as an innerliner or innertube.

7589145, Sep 15, 2009

Sep 6, 2005

11/220114

Patrict Brant - Seabrook TX, US
Mun Fu Tse - Seabrook TX, US
Caiguo Gong - Pearland TX, US
Peijun Jiang - League City TX, US
Hideaki Wakabayashi - Kanagawa, JP

ExxonMobil Chemical Patents Inc. - Houston TX

C08K 5/00

524515, 524528, 525191, 525240, 526348

Disclosed herein is a polymer comprising an amorphous syndiotactic rich polyolefin comprising greater than about 50 wt % C-Calpha olefins and having about 50% to less than about 80% r dyads, based on the total number of r and m dyads present in the polymer; a heat of fusion of 10 joules/g or less according to the procedure described in ASTM E 794-85; and an ash content of 1 wt % or less. A functionalized amorphous syndiotactic rich polyolefin is also disclosed, along with methods to produce and a method to use the inventive polymer.

7605205, Oct 20, 2009

Nov 7, 2005

11/267981

Caiguo Gong - Pearland TX, US
Anthony Jay Dias - Houston TX, US
Weiqing Weng - Houston TX, US
Ramanan Krishnamoorti - Bellaire TX, US
Carmen Neagu - Friendswood TX, US
Molly Westermann Johnston - Baytown TX, US
Beverly Jean Poole - Houston TX, US
Kriss Randall Karp - Copley OH, US

ExxonMobil Chemical Patents, Inc. - Houston TX

C08K 3/34

524445, 524186, 524447

The invention provides for processes for preparing a nanocomposite compositions including the steps of: contacting a multifunctional intercalant including a cationic moiety separated from an anionic moiety by at least 1 carbon, with a clay at a temperature and for a period of time sufficient to produce an at least partially intercalated clay; and contacting the at least partially intercalated clay with a functionalized interpolymer including one or more functional groups, at a temperature, and for a period of time sufficient to produce the nanocomposite compositions. Cured nanocomposite compositions, and articles including such nanocomposite compositions are also provided.

7632886, Dec 15, 2009

Dec 2, 2005

11/293561

Weiqing Weng - Houston TX, US
Anthony Jay Dias - Houston TX, US
Kriss Randall Karp - Copley OH, US
Molly Westermann Johnston - Baytown TX, US
Caiguo Gong - Pearland TX, US
Carmen Neagu - Friendswood TX, US
Beverly Jean Poole - Houston TX, US

ExxonMobil Chemical Patents Inc. - Houston TX

C08K 9/04

524445, 524519, 524114, 524432, 524399, 524322

The present invention provides a nanocomposite of an elastomer, a polymer or oligomer functionalized with a polar group, and a clay. The nanocomposite can be a mixture of a halogenated elastomer, an acid or acid anhydride modified polymer, and a clay, desirably an exfoliated clay, suitable for use as an air barrier. Also disclosed is a nanocomposite that can be a mixture of a halogenated elastomer, a polymer modified with a carboxylic acid, and an organoclay.