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.

Approach to interior noise control. I - Damped trim panels

Abstract: The attenuation mechanisms for interior trim panel systems are reviewed, emphasizing the significance of structure-borne transmission through the trim attachments. The significant factors for high-frequency performance include number of attachments per unit area, panel critical frequency, and panel damping. The need for sufficient damping below and maximal damping above the trim panel critical frequency is described. Described are two experimental flight demonstrations that emphasize the role of trim panel damping. One program involves the new interior system design for a large business jet. Utilization of portions of the weight budget in the form of structural damping treatments permitted a +40% weight savings in acoustical materials with no significant increase in cabin noise levels. Significant reductions in noise levels were achieved in the cockpit, galley, and lavatory. A second program involved a commercial twin-engine jet, with a design objective of significant reduction in noise with minimal weight increase. A reduction of 5 dBA and 5 dB in the speech interference level in the cabin average noise was achieved with only a 0.7% increase in the maximum gross takeoff weight. Only simple add-on skin, trim, and bulkhead damping treatments were used.

Chemical mechanical planarization slurry composition comprising composite particles, process for removing material using said composition, cmp polishing pad and process for preparing said composition

Abstract: CMP processes, tools and slurries utilize composite particles that include core particles having organosilica particles disposed about the core particles. Using these processes, tools and slurries can enhance removal rates, reduce defectivity and increase cleanability with respect to comparable systems and substrates.

A particle containing a hydrophobic region and a hydrophilic region and methods to make same

Abstract: A particle containing a hydrophobic region and a hydrophilic region, products containing the same, a process of making the same, and uses thereof are described. A process of making the particle is also described wherein UV/Ozone techniques can be used to control the depth of organics removal from a porous hydrophobic particle such as an aerogel. The particles can be used in a variety of applications, such as a monolith, a building block, an optical waveguide, a blanket, a matting agent, a structural composite panel, a glass-fiber reinforced panel, a window, a separation wall, a composite wall, a temperature insulation panel, a sound insulation panel, a moisture resistant article, a syntactic foam, or any product of manufacture containing the particles.