Philip J Roach

US Patent:

6841615, Jan 11, 2005

Filed:

Oct 17, 2001

Appl. No.:

09/978827

Inventors:

Clarence A. Andersson - Wallingford PA, US
Philip J. Roach - Townsend DE, US

Assignee:

M Cubed Technologies, Inc. - Monroe CT

International Classification:

C08J 300
C08K 338
C08K 328
C08L 7900
C08G 6344

US Classification:

524612, 524401, 524405, 524428, 524430, 524437, 524442, 528363

Abstract:

A composite adhesive featuring a matrix phase that includes a cyanate ester and a filler or reinforcement phase that includes a plurality of bodies of at least one material comprising a high shear strength and/or high modulus material. Preferably, the filler also possesses at least one of high thermal conductivity and low coefficient of thermal expansion. Unlike certain commercially available cyanate esters, those of the instant invention substantially maintain or even increase in strength upon addition of the filler to the system. The instant composite adhesives may also display reduced coefficients of moisture expansion relative to the unfilled or “neat” resin. Such a composite adhesive is extremely useful for joining articles where high strength and minimal swelling in moist environments are required, such as in the precision equipment industry. In particular, the instant adhesives find great utility in joining components for semiconductor fabrication equipment, such as those that support the optics in a lithography machine.

US Patent:

20050075438, Apr 7, 2005

Filed:

Oct 17, 2001

Appl. No.:

10/399541

Inventors:

Clarence Andersson - Wallingford PA, US
Philip Roach - Townsend DE, US

International Classification:

C08K003/38

US Classification:

524404000, 524424000

Abstract:

A composite adhesive featuring a matrix phase that includes a cyanate ester and a filler or reinforcement phase that includes a plurality of bodies of at least one material comprising a high shear strength and/or high modulus material. Preferably, the filler also possesses at least one of high thermal conductivity and low coefficient of thermal expansion. Unlike certain commercially available cyanate esters, those of the instant invention substantially maintain or even increase in strength upon addition of the filler to the system. The instant composite adhesives may also display reduced coefficients of moisture expansion relative to the unfilled or “neat” resin. Such a composite adhesive is extremely useful for joining articles where high strength and minimal swelling in moist environments are required, such as in the precision equipment industry. In particular, the instant adhesives find great utility in jointing components for semiconductor fabrication equipment, such as those that support the optics in a lithography machine.

US Patent:

54397448, Aug 8, 1995

Filed:

Feb 25, 1993

Appl. No.:

7/979853

Inventors:

Terry D. Claar - Newark DE
Vilupanur A. Ravi - Bear DE
Philip J. Roach - Newark DE

Assignee:

Lanxide Technology Company, LP - Newark DE

International Classification:

C04B 3565
C04B 3558

US Classification:

428408

Abstract:

This invention relates generally to a novel directed metal oxidation process which is utilized to produce self-supporting bodies. In some of the more specific aspects of the invention, a parent metal (e. g. , a parent metal vapor) is induced to react with at least one solid oxidant-containing material to result in the directed growth of a reaction product which is formed from a reaction between the parent metal and the solid oxidant-containing material. The inventive process can be utilized to form bodies having substantially homogeneous compositions, graded compositions, and macrocomposite bodies.

US Patent:

61139823, Sep 5, 2000

Filed:

Jun 7, 1995

Appl. No.:

8/472619

Inventors:

Terry Dennis Claar - Newark DE
Vilupanur Alwar Ravi - Bear DE
Philip Joseph Roach - Newark DE

Assignee:

Lanxide Technology Company, LP - Newark DE

International Classification:

C23C 1600

US Classification:

4272481

Abstract:

This invention relates generally to a novel directed metal oxidation process which is utilized to produce self-supporting bodies. In some of the more specific aspects of the invention, a parent metal (e. g. , a parent metal vapor) is induced to react with at least one solid oxidant-containing material to result in the directed growth of a reaction product which is formed from a reaction between the parent metal and the solid oxidant-containing material. The inventive process can be utilized to form bodies having substantially homogeneous compositions, graded compositions, and macrocomposite bodies. In a preferred embodiment, the reaction product may be chemically modified or a different reaction product may be coated thereon. Specifically, once a first reaction product is formed on a solid oxidant-containing material, the formed body may be exposed to a vapor-phase parent metal different from the first parent metal. Alternatively the formed body may be exposed to a vapor-phase oxidant having a different chemical composition then the solid oxidant-containing material.

US Patent:

52779335, Jan 11, 1994

Filed:

Dec 23, 1991

Appl. No.:

7/812775

Inventors:

Terry D. Claar - Newark DE
Vilupanur A. Ravi - Bear DE
Philip J. Roach - Newark DE

Assignee:

Lanxide Technology Company, LP - Newark DE

International Classification:

C23C 1600

US Classification:

4272481

Abstract:

This invention relates generally to a novel directed metal oxidation process which is utilized to produce self-supporting bodies. In some of the more specific aspects of the invention, a parent metal (e. g. , a parent metal vapor) is induced to react with at least one solid oxidant-containing material to result in the directed growth of a reaction product which is formed from a reaction between the parent metal and the solid oxidant-containing material. The inventive process can be utilized to form bodies having substantially homogeneous compositions, graded compositions, and macrocomposite bodies.

US Patent:

52427102, Sep 7, 1993

Filed:

May 6, 1992

Appl. No.:

7/880479

Inventors:

Terry D. Claar - Newark DE
Vilupanur A. Ravi - New Castle DE
Philip J. Roach - Newark DE

Assignee:

Lanxide Technology Company, LP - Newark DE

International Classification:

C23C 1600

US Classification:

4272481

Abstract:

This invention relates generally to a novel directed metal oxidation process which is utilized to produce self-supporting bodies. In some of the more specific aspects of the invention, a parent metal vapor is induced to react with a solid oxidant to result in the directed growth of a reaction product which is formed from a reaction between the parent metal vapor and the solid oxidant. The inventive process can be utilized to form bodies having substantially homogeneous compositions, graded compositions, and macrocomposite bodies.

US Patent:

56745621, Oct 7, 1997

Filed:

Jun 7, 1995

Appl. No.:

8/476158

Inventors:

Terry Dennis Claar - Newark DE
Vilupanur Alwar Ravi - Bear DE
Michael Allan Richmond - Newark DE
Philip Joseph Roach - Newark DE
Barry Robert Rossing - Hockessin DE

Assignee:

Lanxide Technology Company, LP - Newark DE

International Classification:

C23C 1630

US Classification:

4272481

Abstract:

This invention relates generally to a novel directed metal oxidation process which is utilized to produce self-supporting bodies. In some of the more specific aspects of the invention, a parent metal (e. g. , a parent metal vapor) is induced to react with at least one solid oxidant-containing material to result in the directed growth of a reaction product which is formed from a reaction between the parent metal and the solid oxidant-containing material. The inventive process can be utilized to form bodies having substantially homogeneous compositions, graded compositions, and macrocomposite bodies. In a preferred embodiment, the reaction product may be chemically modified or a different reaction product may be coated thereon. Specifically, once a first reaction product is formed on a solid oxidant-containing material, the formed body may be exposed to a vapor-phase parent metal different from the first parent metal. Alternatively, the formed body may be exposed to a vapor-phase oxidant having a different chemical composition then the solid oxidant-containing material.

US Patent:

51334941, Jul 28, 1992

Filed:

Dec 4, 1991

Appl. No.:

7/803709

Inventors:

James C. Wang - Newark DE
Terry D. Claar - Newark DE
Philip J. Roach - Newark DE

Assignee:

Lanxide Technology Company, LP - Newark DE

International Classification:

B22D 1914
B23K 3100

US Classification:

228122

Abstract:

This invention relates generally to a novel method for joining at least one first self-supporting body, to at least one second self-supporting body which is similar in composition to or different in composition from said at least one first self-supporting body and to novel products which result from such joining. In some of its more specific aspects, this invention relates to different techniques for joining ceramic matrix composite bodies to other ceramic matrix composite bodies of similar characteristics and for joining ceramic matrix composite bodies to bodies which have different characteristics (e. g. , metals). The ceramic matrix composite bodies of this invention are produced by a reactive infiltration of a molten parent metal into a bed or mass containing a boron source material and a carbon source material (e. g. , boron carbide) and/or a boron source material and a nitrogen source material (e. g. , boron nitride) and, optionally, one or more inert fillers.