Ronald C Hurst

US Patent:

39520870, Apr 20, 1976

Filed:

Sep 13, 1974

Appl. No.:

5/505616

Inventors:

Randolph Antonsen - Boston MA
Allan Clark Morgan - Sudbury MA
Roger T. Ball - Pampa TX
Ronald C. Hurst - Pampa TX
Dennis J. Potter - Pampa TX
Robert I. Wood - Cuddington, EN

Assignee:

Cabot Corporation - Boston MA

International Classification:

C09C 150

US Classification:

423450

Abstract:

This disclosure relates to an improved furnace process for preparing carbon blacks by the incomplete combustion of hydrocarbonaceous feedstocks wherein the resultant blacks have higher structure characteristics than the carbon blacks normally prepared from the feedstocks.

US Patent:

61568376, Dec 5, 2000

Filed:

Aug 23, 1993

Appl. No.:

8/109973

Inventors:

John M. Branan - Amarillo TX
Bin Chung - Nashua NH
Frank J. Hrach - Parkersberg WV
Ronald C. Hurst - Pampa TX
David J. Kaul - Pampa TX
Sergio A. Montes - Nashua NH
William L. Sifleet - Acton MA
Daniel W. Weaver - Amarillo TX
Jay Zimmer - Pampa TX

Assignee:

Cabot Corporation - Boston MA

International Classification:

C09C 148

US Classification:

524495

Abstract:

A process for producing carbon blacks comprised of mixing an oxidant, primary fuel, and carbon black feedstock to form carbon black particles and aggregates, passing the mixture through a reactor, cooling, separating, and recovering the carbon black product. The improvement comprises the addition of a secondary oxidant-containing stream to the reactor such that the secondary oxidant stream does not interfere with the formation of the carbon black particles and aggregates in the reactor. Also disclosed are new carbon black products defined by the following parameters: 35 mg/g. ltoreq. I. sub. 2 No. ltoreq. 65 mg/g 30 m. sup. 2 g. ltoreq. CTAB. ltoreq. 55 m. sup. 2 g 1. 12 mg/m. sup. 2. ltoreq. I. sub. 2 No. /CTAB ratio Tint. ltoreq. 65% 75 cc/100 g. ltoreq. CDBP. ltoreq.

US Patent:

41057503, Aug 8, 1978

Filed:

Nov 22, 1976

Appl. No.:

5/743963

Inventors:

John H. Horn - Vizcaya, ES
William R. Morehead - Pampa TX
Ronald C. Hurst - Pampa TX
Dennis J. Potter - Milford MA
Clyde D. Schaub - Tulsa OK

Assignee:

Cabot Corporation - Boston MA

International Classification:

C01B 3102
C09C 148
C09C 156

US Classification:

423456

Abstract:

This disclosure relates to an improved furnace process for preparing carbon blacks, especially semi-reinforcing furnace blacks, by the incomplete combustion of hydrocarbonaceous feedstocks wherein the structure characteristics of the resultant blacks are lowered without significantly increasing the particle size of the blacks.

US Patent:

42833787, Aug 11, 1981

Filed:

Aug 1, 1979

Appl. No.:

6/062727

Inventors:

Barrie J. Yates - Andover MA
Ronald C. Hurst - Pampa TX

Assignee:

Cabot Corporation - Boston MA

International Classification:

C01B 3102
C09C 148

US Classification:

423456

Abstract:

This disclosure relates to an improved furnace process for producing carbon blacks by the incomplete combustion of hydrocarbonaceous feedstock wherein the resultant blacks have higher surface areas than the carbon blacks normally prepared from the feedstocks, as a result of which the blacks are particularly suitable for use in imparting conductivity properites to plastic materials and the like. This disclosure also relates to the production of a novel class of furnace blacks having excellent conductivity properites and which are characterized by high surface areas and low pH values.

US Patent:

43741134, Feb 15, 1983

Filed:

Apr 30, 1981

Appl. No.:

6/259079

Inventors:

Barrie J. Yates - Andover MA
Ronald C. Hurst - Pampa TX

Assignee:

Cabot Corporation - Boston MA

International Classification:

C01B 3100
C01B 3102

US Classification:

423445

Abstract:

This disclosure relates to an improved furnace process for producing carbon blacks by the incomplete combustion of hydrocarbonaceous feedstock wherein the resultant blacks have higher surface areas than the carbon blacks normally prepared from the feedstocks, as a result of which the blacks are particularly suitable for use in imparting conductivity properties to plastic materials and the like. This disclosure also relates to the production of a novel class of furnace blacks having excellent conductivity properties and which are characterized by high surface areas and low pH values.

US Patent:

48791040, Nov 7, 1989

Filed:

Jun 16, 1987

Appl. No.:

7/063187

Inventors:

Steven J. List - Billerica MA
Ronald C. Hurst - Pampa TX

Assignee:

Cabot Corporation - Waltham MA

International Classification:

C01B 3102

US Classification:

423450

Abstract:

Disclosed is a process for producing carbon blacks which for a given surface area are characterized by having lower tinting strength and higher structure.

US Patent:

43703089, Jan 25, 1983

Filed:

May 15, 1981

Appl. No.:

6/264186

Inventors:

Frank R. Williams - Quincy MA
Ronald C. Hurst - Pampa TX

Assignee:

Cabot Corporation - Boston MA

International Classification:

C01B 3102
C09C 148

US Classification:

423450

Abstract:

This disclosure relates to an improved furnace process for producing carbon blacks by the incomplete combustion of hydrocarbonaceous feedstock wherein the resultant blacks either have higher surface areas than the carbon blacks normally prepared from the feedstocks or are produced more economically. The blacks produced by the process are suitable for use in all of the typical applications such as rubber plastics, inks and the like.