Cabot Corporation

About: Cabot Corporation is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Carbon black & Carbon. The organization has 1279 authors who have published 1399 publications receiving 36736 citations.

High resistivity coating compositions having unique percolation behavior, and electrostatic image developing systems and components thereof incorporating same

Abstract: Disclosed herein are resistive composites comprising at least one resin; at least one carbon black having a surface hydrophobically modified with at least one organic group, the at least one organic group having a molecular weight of 4000 or less and comprising the formula --X(G)—, wherein X is directly attached to the at least one carbon black and is selected from arylene, heteroarylene, and alkylene, G is a substituent of X, and —X(G)— is nonionic; and wherein the resistive composite has a volume resistivity, Rv, at a relative volume fraction, XCB, of the at least one carbon black in the coating, where Rv is at least 106 ohm-cm; and log Rv has a substantially linear relationship with XCB when XCB is varied from 0.1 to 0.5. Also disclosed are coatings made from such composites, such as coatings for rollers/belts for office automation machines, and methods of making such coatings.

Silicon-treated carbon blacks surface treated with a silicone fluid or a silane

Abstract: Silicone rubber compositions are disclosed including a silicone polymer and a silicon-treated carbon black. The silicon-treated carbon blacks include a silicon-containing compound that is distributed through at least a portion of the carbon black aggregate. The silicon-treated carbon black is incorporated within a silicone rubber composition as an alternative reinforcing and extending filler, imparting higher hardness to elastomers formed from the composition, when compared to silicone rubber compositions incorporating an untreated carbon black.

Process for producing organically modified aerogels

Abstract: The invention relates to a process for producing aerogels with permanently hydrophobic surface groups, in which a) silicate lyogel is provided, b) the gel provided in step a) is washed with an organic solvent, c) the gel obtained in step b) is surface-silylated and d) the surface-silylated gel obtained in step c) is dried, where the organic solvent used in step b) is a diether of formula (I) R1-O-(CH?2?)n-O-R?2? in which R?1 and R2? are mutually independently the same or different alkyl groups with 1 to 4 C atoms and n is a natural number in the range from 1 to 5.