4569834 Carbon black pellets having enhanced dispersion properties
1
II New Patents 4569834 CARBON BLACK PELLETS HAVING ENHANCED DISPERSION PROPERTIES Jesse West, Lance Garton assigned to Conti- nental Carbon Company A pelletized carbon black having enhanced dis- persion properties is prepared by replacing con- ventional pelletizing binders with a binder material which is thermally stable at the pellet drying temperature, thermally liquefiable at the mixing temperature of the resulting pellet and its end use matrix, and solid at carbon black storage temperature. 4571317 PROCESS FOR PRODUCING BINDERLESS CARBON OR GRAPHITE ARTICLES George K Layden, Romeo Bourdeau, Roscoe A Pike assigned to United Technologies Corpora- tion A process for producing binderless, single phase bulk carbon or graphite articles having a fibrillar microstructure comprising the steps of assem- bling a plurality of polymer fibers into a pre- selected pattern, subjecting them to a temperature and pressure sufficient to cause heat distortion flow and concomitant self-bonding of contiguous fibers and pyrolyzing the fibers in a nonoxidizing atmosphere. 4572813 PROCESS FOR PREPARING FINE CARBON FIBERS IN A GASEOUS PHASE REACTION Kohei Arakawa, Tokyo, Japan assigned to Nik- kiso Co Ltd A process of preparing carbon fibers in a floating state by reacting a mixed gas consisted of a gas of organic metal compound or com- pounds, a carrier gas and desirably a gas of car- bon compound or compounds at the elevated temperature of 600 degrees to 1300 degrees C. is disclosed, in which the fine carbon fibers having a diameter of 0.05 to 2 mum, a length of 2 to 3000 mum and an aspect ratio of 2 to 30,000 as well as a high degree of preferred orientation of carbon layers may be produced in a high yield and a high productivity. For infomation about PATSEARCH@ Pergamon InfoLine Inc. 1340 Old Chain Bridge Road McLean, Virginia 22101 USA Telephone (703) 442-0900 Telex: 90-1811 Pergamon InfoLine Limited 12 Vandy Street London EC2A 2DE England Telephone (01) 377-4650 Telex: 8814614 Pergamon Press Canada Ltd 150 Consumers Road, Suite 104 Willowdale, Ontario Canada M2J 1P9 Telephone (416) 497-8337
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Transcript of 4569834 Carbon black pellets having enhanced dispersion properties
II New Patents
4569834
CARBON BLACK PELLETS HAVING ENHANCED
DISPERSION PROPERTIES
Jesse West, Lance Garton assigned to Conti- nental Carbon Company
A pelletized carbon black having enhanced dis- persion properties is prepared by replacing con- ventional pelletizing binders with a binder material which is thermally stable at the pellet drying temperature, thermally liquefiable at the mixing temperature of the resulting pellet and its end use matrix, and solid at carbon black storage temperature.
4571317
PROCESS FOR PRODUCING BINDERLESS CARBON OR
GRAPHITE ARTICLES
George K Layden, Romeo Bourdeau, Roscoe A Pike assigned to United Technologies Corpora- tion
A process for producing binderless, single phase bulk carbon or graphite articles having a fibrillar
microstructure comprising the steps of assem- bling a plurality of polymer fibers into a pre- selected pattern, subjecting them to a temperature and pressure sufficient to cause heat distortion flow and concomitant self-bonding of contiguous fibers and pyrolyzing the fibers in a nonoxidizing atmosphere.
4572813
PROCESS FOR PREPARING FINE CARBON FIBERS IN A GASEOUS
PHASE REACTION
Kohei Arakawa, Tokyo, Japan assigned to Nik- kiso Co Ltd
A process of preparing carbon fibers in a floating state by reacting a mixed gas consisted of a gas of organic metal compound or com- pounds, a carrier gas and desirably a gas of car- bon compound or compounds at the elevated temperature of 600 degrees to 1300 degrees C. is disclosed, in which the fine carbon fibers having a diameter of 0.05 to 2 mum, a length of 2 to 3000 mum and an aspect ratio of 2 to 30,000 as well as a high degree of preferred orientation of carbon layers may be produced in a high yield and a high productivity.
For infomation about PATSEARCH@
Pergamon InfoLine Inc. 1340 Old Chain Bridge Road
McLean, Virginia 22101 USA
Telephone (703) 442-0900 Telex: 90-1811
Pergamon InfoLine Limited
12 Vandy Street London EC2A 2DE
England Telephone (01) 377-4650
Telex: 8814614
Pergamon Press Canada Ltd
150 Consumers Road, Suite 104 Willowdale, Ontario
Canada M2J 1P9 Telephone (416) 497-8337
