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Ultrasonic Dispersion of Carbon in Polymeric Solutions

IP.com Disclosure Number: IPCOM000088354D
Original Publication Date: 1977-Jun-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Fox, RF: AUTHOR [+2]

Abstract

Carbon in a solvent, containing a polymeric material, is dispersed by the use of ultrasonic energy. The dispersion is maintained by the presence of the polymeric material. Centrifuging will not separate the dispersion. The ultrasonic energy provided disperses the carbon and no dispersing agent is needed. It is postulated that energy introduced to the carbon increases the efficiency of ultrasonic dispersions to a practical level. The following solution gives very good results: Methyl Isobutyl Ketone 4 parts by weight Activated Carbon 1 part by weight Binder Solution * 1 part by weight * The binder solution contains 20% by weight of polyurethane and 80% solvent. This process is well suited for in-line operation. The solution can be fed into one end of the ultrasonic disperser and removed from the opposite end.

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Ultrasonic Dispersion of Carbon in Polymeric Solutions

Carbon in a solvent, containing a polymeric material, is dispersed by the use of ultrasonic energy. The dispersion is maintained by the presence of the polymeric material. Centrifuging will not separate the dispersion. The ultrasonic energy provided disperses the carbon and no dispersing agent is needed. It is postulated that energy introduced to the carbon increases the efficiency of ultrasonic dispersions to a practical level. The following solution gives very good results: Methyl Isobutyl Ketone 4 parts by weight Activated Carbon 1 part by weight Binder Solution * 1 part by weight * The binder solution contains 20% by weight of polyurethane and 80% solvent. This process is well suited for in-line operation. The solution can be fed into one end of the ultrasonic disperser and removed from the opposite end. One hour residence time is sufficient.

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