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 blacks without the use of a quenching liquid to stop pyrolysis of the effluent in the reactor. In the process of the present invention, the effluent passes from the reaction zone of a furnace carbon black reactor downstream into a lined wall heat exchanger where the effluent is sufficiently cooled to stop pyrolysis. The effluent may be pre-cooled before it enters the lined wall heat exchanger by a quench injecting fluid at a rate substantially lower than in a conventional process wherein all of the fluid is finely atomized in the effluent such that the duration of the presence of liquid phase in the effluent stream is substantially minimized. In a preferred embodiment a cleaning method is utilized to continuously remove deposits from the interior walls of the lined wall heat exchanger and/or the secondary cooler.

Metal nanoparticle compositions for reflective features

Abstract: A composition for the fabrication of reflective features using a direct-write tool is disclosed. The composition comprises metal nanoparticles having an average particle size less than 300 nm and which carry thereon a polymer for substantially preventing agglomeration of the nanoparticles, wherein the nanoparticles exhibit a metal-polymer weight ratio of 100:1 to 10:1. The composition further includes a vehicle for forming a dispersion with the metal nanoparticles. A number of electronic devices comprising a reflective layer formed from the composition are also disclosed. One example case provides an electronic device having a reflective electrode. The reflective electrode comprises a percolation network of the metal nanoparticles embedded in a matrix of the polymer and having an average particle size of less than 300 nm, wherein the reflective electrode is reflective in the visible light range and does not diffract incident light.

Identification and Determination of Polymers in Compounded Cured Rubber Stocks by Pyrolysis and Two-Channel Gas Chromatography

Abstract: Methods for analysis of carbon-black-loaded vulcanizates are of considerable interest to the rubber industry and to those supplying its raw materials. Identification of polymers or copolymers present in such stocks is an important step in this analysis. Often it becomes desirable also to determine the composition of a blend of two or more elastomers. In recent years gas chromatographic analysis of volatile pyrolysis products has been increasingly applied to these intractable materials. A wide variety of polymers and experimental techniques for pyrolysis and subsequent chromatographic analysis have been used. A complete resume of this work is beyond the scope of this report, but recent papers dealing with the use of these methods in elastomer analysis include those of Groten, Hulot and Lebel, Blenkin, Lebel, Fiorenza and Bonomi, and an excellent review of pyrolytic techniques by Brauer. This study was an evaluation of the applicability of simultaneous flame ionization and electron capture (dual-ch...

Surface treatment of polymeric materials

Abstract: SAID POLYMERIC MATERIALS ARE RENDERED WATER-REPELLENT BY APPLYING TO THE SURFACE THEREOF CERTAIN COLLOIDAL METAL OR METALLOID OXIDES.