Cabot Corporation

Barrie J Yates

Bruce E MacKay

Mark A Wilkinson

Ronald C Hurst

David J Hammonds

Alan J Austin

Novel carbon blacks that impart advantageous properties to rubber and plastic compositions and may be utilized in the place of lamp blacks, thermal carbon blacks and blends of carbon blacks. Also disclosed are novel rubber and plastic compositions incorporating the novel carbon blacks which exhibit the advantageous combinations of compound processing and physical performance properties.

Carbon blacks

Novel furnace carbon blacks that impart advantageous properties to rubber and plastic compositions and may be utilized in place of lamp blacks, thermal carbon blacks and blends of carbon blacks. Also disclosed are novel rubber and plastic compositions incorporating the novel carbon blacks which exhibit advantageous combinations of compound processing and physical performance properties.

A process for preparing carbon blacks having lower-than-normal structure at a given surface area, and lower-than-normal surface area at a given overall combustion level. The process is carried-out by adding auxiliary hydrocarbons, which is hydrogen or any hydrocarbon having a molar hydrogen-to-carbon ratio greater than the molar hydrogen-to-carbon ratio of the feedstock, to the reaction zone of a carbon black reactor and adjusting the primary combustion and overall combustion so that the SSI of the process is less than zero.

Production of carbon blacks

An improved carbon black burner for producing a carbon black with reduced grit content wherein feedstock oil is introduced radially into an atomizing fluid conduit through ports located proximate the discharge orifice of the burner.

Carbon black burner

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.

Production of high surface area carbon blacks

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.

Growing community of inventors

Lexington, MA, United States of America

Barrie J Yates