Antonio P Chaves

US Patent:

6369139, Apr 9, 2002

Filed:

Nov 24, 1997

Appl. No.:

08/977097

Inventors:

Frederick D. Osterholtz - Pleasantville NY
Eric R. Pohl - Mt. Kisco NY
Ming J. Chen - Garnerville NY
Antonio Chaves - White Plains NY

Assignee:

Crompton Corporation - Middlebury CT

International Classification:

C08K 51515

US Classification:

524114, 1062871, 10628713, 10628714, 10628716, 10628722, 524107

Abstract:

The present invention provides stable epoxy silane emulsions and methods for the preparation of such compositions comprising (I) a water insoluble or slightly soluble epoxysilane; (II) an emulsifier; (III) water; and (IV) a water dispersible polymer containing a functional group with an active hydrogen. Also provided are two part systems such that an epoxysilane emulsion comprising components (I)-(III) are combined and the component (IV) may be added upon use of components (I)-(III). Moreover, additional components (V), such as catalysts and pH buffers, may be added. Such compositions may be used for, among other things, coatings, adhesives and sealants.

US Patent:

6627682, Sep 30, 2003

Filed:

Aug 29, 2000

Appl. No.:

09/650035

Inventors:

Antonio Chaves - White Plains NY
Eric R. Pohl - Mount Kisco NY
Frederick D. Osterholtz - Pleasantville NY

Assignee:

Crompton Corporation - Middlebury CT

International Classification:

C08K 320

US Classification:

523406, 523407, 523404

Abstract:

The present invention is directed to fast reacting epoxy compositions employing select unidentate and chelated Ti(IV) and Sn(II) curing catalysts.

US Patent:

7368584, May 6, 2008

Filed:

Aug 14, 2006

Appl. No.:

11/505221

Inventors:

Antonio Chaves - Chappaqua NY, US
Eric R. Pohl - Mount Kisco NY, US
Christopher M. Hartshorn - Ossining NY, US

Assignee:

Momentive Performance Materials Inc. - Wilton CT

International Classification:

C07F 7/02

US Classification:

556400

Abstract:

The disclosure herein relates to organofunctional silanes and mixtures of organofunctional silanes possessing mercaptan and hydrocarbyl and/or heterocarbyl functionality. These silanes reduce or eliminate the generation of volatile organic compounds (VOC's) during use, aid in the processing of filled elastomeric materials and enhance the end-use properties of the filled elastomer. The present disclosure relates to the composition of these silanes.

US Patent:

7432321, Oct 7, 2008

Filed:

Jul 8, 2003

Appl. No.:

10/617165

Inventors:

Prashant G. Joshi - Ossining NY, US
Antonio Chaves - Chappaqua NY, US
Lesley Hwang - White Plains NY, US
Michael Stout - Brookfield CT, US
Martin Hofstetter - Bellrose Manor NY, US
Louis M. Panzer - Ridgefield CT, US

Assignee:

Momentive Performance Materials Inc. - Wilton CT

International Classification:

C08K 3/34

US Classification:

524492, 524493

Abstract:

A method for increasing the hardness of silica/rubber mixtures includes blending with the mixture at least one silane and a hardness-increasing amount of at least one member selected from the group consisting of thixotropic fumed silica, precipitated silica and an MQ resin, wherein Q is SiO, M is RRRSiO, and R,R,and Rare the same or different functional or non-functional organic groups, carbon black, a thermoplastic resin or a thermosetting resin.

US Patent:

7504456, Mar 17, 2009

Filed:

Feb 21, 2006

Appl. No.:

11/358861

Inventors:

Antonio Chaves - Chappaqua NY, US
Eric R. Pohl - Mount Kisco NY, US
Linda Vecere - Fishkill NY, US
Lesley Hwang - Chappaqua NY, US
Robert Pickwell - Tonawanda NY, US

Assignee:

Momentive Performance Materials Inc. - Albany NY

International Classification:

C08L 9/00
C07F 7/08

US Classification:

524571, 524574, 524575, 428403, 428405, 556427, 556429, 556464

Abstract:

A rubber composition containing a rubber component, a filler and at least one organofunctional silane and/or mixture of organofunctional silanes in which individual silanes possess both free and blocked mercaptan functionality or particular mixtures of the organofunctional silanes possess both free and blocked mercaptan functionality. The organofunctional silanes and silane mixtures are useful, inter alia, as coupling agents for elastomeric compositions, e. g. , rubber formulations employed in the manufacture of tires, where they exhibit a desirable balance of low scorch and good performance properties.

US Patent:

7510670, Mar 31, 2009

Filed:

Feb 21, 2006

Appl. No.:

11/358369

Inventors:

Antonio Chaves - Chappaqua NY, US
Eric R. Pohl - Mount Kisco NY, US
Linda Vecere - Fishkill NY, US
Lesley Hwang - Chappaqua NY, US

Assignee:

Momentive Performance Materials Inc. - Albany NY

International Classification:

C09K 3/00

US Classification:

2521823, 25218311, 25218313, 556427, 525105

Abstract:

Free flowing filler composition based on organofunctional silane and/or mixtures of organofunctional silanes possessing mercaptan and blocked mercaptan functionality. The invention also relates to articles of manufacture, particularly tires, made from the elastomer compositions described herein.

US Patent:

7550524, Jun 23, 2009

Filed:

Oct 6, 2006

Appl. No.:

11/544142

Inventors:

Antonio Chaves - Chappaqua NY, US
Eric Raymond Pohl - Mount Kisco NY, US
Richard W. Cruse - Yorktown Heights NY, US
Daniel Gurovich - Lake Peekskill NY, US

Assignee:

Momentive Performance Materials Inc. - Albany NY

International Classification:

B60C 1/00

US Classification:

524262, 524265, 524267, 524419, 524421, 524437, 524451

Abstract:

A filled elastomer composition comprises:.

US Patent:

7550540, Jun 23, 2009

Filed:

Aug 14, 2006

Appl. No.:

11/505178

Inventors:

Antonio Chaves - Chappaqua NY, US
Eric R. Pohl - Mount Kisco NY, US
Christopher M. Hartshorn - Ossining NY, US

Assignee:

Momentive Performance Materials Inc. - Albany NY

International Classification:

C08C 19/20
B32B 18/00

US Classification:

525343, 525342, 525350, 428403, 428405, 556427, 556429, 556443, 556449, 556469

Abstract:

The disclosure herein relates to organofunctional silanes and mixtures of organofunctional silanes possessing mercaptan and hydrocarbyl and/or heterocarbyl functionality. These silanes reduce or eliminate the generation of volatile organic compounds (VOC's) during use, aid in the processing of filled elastomeric materials and enhance the end-use properties of the filled elastomer. The present disclosure relates to a rubber composition and article comprising these silanes.