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.

Filler Reinforcement of Liquid Elastomers

Abstract: To realize the potential processing benefits of liquid rubbers, methods must be developed for producing acceptable reinforced compounds which retain the inherent rheological advantages of the uncured polymer. The most promising commercially available liquid rubbers are functionally terminated low molecular weight analogs of common general-purpose elastomers such as poly-(butadiene) or butadiene copolymers. In principle, these low molecular weight polymers can be vulcanized by a combination of chain extension and cross-linking to yield vulcanizates comparable to those from solid elastomers. Both cure reactions can be carried out simultaneously with a chemically specific polyfunctional coupling agent, or alternatively, chain extension with a difunctional reactant can be followed by use of accelerated sulfur or equivalent crosslinking agents. In contrast to certain polar polymers, liquid hydrocarbon rubbers yield relatively weak vulcanizates which are unsuitable for mechanical and tire applications....

Regulation of the flow-rate of carbon black into a pelletizer

Abstract: The disclosure relates to a process and apparatus for dispensing a uniform flow of carbon black from a tank. The process is carried out by stirring the carbon black in a surge tank, providing equal movement of the carbon black away from the center of the surge tank towards the outlet(s) of the surge tank and removing caked carbon black from the wall of the tank and/or minimizing caking of carbon black on the wall of the surge tank. The apparatus includes horizontal blades for stirring the carbon black, lifters for lifting carbon black from the bottom of the tank, impeller vanes shaped in the form of curves such that each segment of rotation of the vanes causes an equal movement of the carbon black away from the center of the surge tank towards the tank outlet(s), and side scrapers for removing caked carbon black from the wall of the tank and/or minimizing caking of carbon black on the wall of the surge tank.

Printing system perceptual-based gloss and gloss uniformity standard (INCITS W1.1)

Abstract: To address the standarization issues of perceptually based image quality for printing systems, ISO/IEC JTC1/SC28, the standarization committee for office equipment charactered the W1.1 project with the responsibiltiy of drafting a proposal for an international standard for the evaluation of printed image quality. One of the W1.1 task teams is charactered to address the issue of 'Gloss and Gloss Uniformity". This paper summarizes the current status and technical progress of this ad hoc team in 2003.

Verfahren zur herstellung organofunktionalisierter aerogele

Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von organofunktionell modifizierten Aerogelen, wobei man ein Wasserglas durch Polykondensation vergelt und anschliesend durch Trocknen unter Erhalt der Gelstruktur zu einem Aerogel umsetzt, dadurch gekennzeichnet, das man das Gel vor dem Trocknen mit einer mindestens bifunktionellen organischen Verbindung zur Reaktion bringt, wobei mindestens eine funktionelle Gruppe zur Anknupfung an das Aerogel dient, wahrend die ubrigen erhalten bleiben, Aerogele, die nach dem erfindungsgemasen Verfahren erhaltlich sind, sowie deren Verwendung.