Chevron Research Company

Chevron Research

Edward L Nimer

Robert W Campbell

Kiyoshi Katsumoto

Sulfur cement-aggregate compositions comprising a sulfur cement and an aggregate containing an expansive clay and processes for preparing such compositions. The processes, and resulting compositions, are characterized by the incorporation of a carboxylic acid therein. The resulting solidified composition has improved water stability. The compositions can be used as mortars or concretes depending on the particle size of the principal aggregate component.

Sulfur cement-aggregate compositions and methods for preparing

Sulfur cement-aggregate compositions comprising a sulfur cement and an aggregate containing an expansive clay and processes for preparing such compositions. The processes, and resulting compositions, are characterized by the addition of certain organosilanes in the composition prior to solidifying (cooling) the composition. The resulting solidified composition has improved water stability. The compositions can be used as mortars or concretes depending on the particle size of the principal aggregate component.

Sulfur cement-aggregate-organosilane compositions and methods for

Sulfur cement-aggregate compositions comprising a sulfur cement and an aggregate containing an expansive clay and processes for preparing such adhesives. The processes, and resulting compositions, are characterized by adding a water soluble salt to the aggregate and then admixing said aggregate-salt mixture with molten sulfur cement. The resulting solidified composition has improved water stability. The compositions can be used as mortars or concretes depending on the particle sizes of the principal aggregate component.

Moisture-containing nylon-4 powder is treated under heat and pressure to produce a solid material of bulk density suitable for melt-spinning.

Growing community of inventors

San Rafael, CA, United States of America

Edward L Nimer