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.

Process for producing carbon blacks

Abstract: A process for producing carbon black comprising reacting a reaction stream formed by a prior carbon black forming process with an oxidant and a carbon black yielding feedstock to produce carbon black and cooling, separating and recovering the carbon black. The process advantageously reduces the amount of fuel needed to produce carbon black. Also disclosed is an apparatus for practicing the process.

Corrosion- and wear-resistant duplex steel

Abstract: Disclosed is a "duplex" stainless steel especially suited for use in conditions requiring a high degree of wear and corrosion resistance; for example structural fasteners, such as nuts and bolts as used in chemical processing. The alloy typically contains, in weight percent, 12 cobalt, 20 chromium, 11 nickel, 5 silicon, 1.5 molybdenum, 2 copper, up to 0.2 nitrogen and up to 0.01 carbon. The "duplex" structure preferably consists of about 30% ferrite and the balance essentially austenite.

Slurry for chemical and mechanical polishing used for metal layer and film

Abstract: PROBLEM TO BE SOLVED: To restrain the imperfectness and defect of a surface while performing effective polish with desired polishing speed by employing a specified rate of the selectivity of a metal layer or film and an insulating material layer. SOLUTION: When slurry consisting of fumed almina, oxyidizing agent, organic acid and demineralized water for example is used to polish chemically mechanically an aluminum layer or the like of a substrate, the selectivity of aluminum : thermal oxide, i.e., the polishing speed ratio of the aluminum layer to the thermo oxide is set to at least 50.1. This slurry includes aquous medium, abrasives, oxidizing agent and organic acid. The abrasives are metal oxide, preferably fumed abrasives among fumed sediment abrasives. Oxidizing metal salt, oxidizing metallic complex, or the like are suited for the oxidizing agent to use ammonium salt or the like. Monofunctional acid or the like, preferably succinic acid or the like is used for the organic acid. Thus, the slurry oxidizing agent, organic acid and other additives polish effectively a metal layer with desired polishing speed, while restraining the incompleteness and defect of the surface.

Water soluble copolymers and polymer compositions comprising same and use thereof

Abstract: Novel polymer compositions are disclosed, along with their use as well service fluids, for example as completion fluids, work-over fluids or drilling fluids, comprising water soluable copolymers having sulfonate groups and carboxylate groups, along with alkali metal salts of carboxylic acid. Exemplary copolymer has 5 to 95 wt. % structural units derived from 2-acrylamido-2-methylpropanesulfonic acid or salt thereof, and 5 to 95 wt. % structural units derived from acrylic acid or salt thereof. A salt of the polymer may be used, such as the sodium, potassium, ammonium and calcium salts. Exemplary alkali metal salts of the polymer composition include sodium, potassium and cesium salts of formic acid and/or acetic acid in amounts suitable to develop high temperature viscosity suitable for such well servicing fluids. The polymer composition is hydrateble/soluble in a brine of sodium and/or potassium and/or cesium salts of formic and/or acetic acid.

Method for the production of metal-carbon composite powders

Abstract: Metal-carbon composite powders and methods for producing metal-carbon composite powders. The powders have a well-controlled microstructure and morphology and preferably have a small average particle size. The method includes forming the particles from an aerosol of powder precursors. The invention also includes novel devices and products formed from the composite powders.