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Hyperion Catalysis International Patents
Assignee:
Hyperion Catalysis International
Address:
Cambridge, MA
No. of patents:
10
Patents:




Patent Number Title Of Patent Date Issued
6235674 Carbon fibrils, methods for producing same and adhesive compositions containing same May 22, 2001
This invention concerns composite materials comprising a plurality of carbon fibrils in a matrix wherein the carbon fibrils are each characterized by a substantially constant diameter between about 3.5 to 70 nanometers and are substantially free of pyrolytically deposited thermal car
6099960 High surface area nanofibers, methods of making, methods of using and products containing same August 8, 2000
A high surface area carbon nanofiber is provided. The carbon nanofiber has an outer surface on which a porous high surface area layer is formed. A method of making the high surface area carbon nanofiber includes pyrolizing a polymeric coating substance provided on the outer surface of
5814290 Silicon nitride nanowhiskers and method of making same September 29, 1998
Silicon nitride nanowhiskers predominantly having diameters substantially less than about 200 nm are disclosed. The nanowhiskers of Si.sub.3 N.sub.4 are produced by reacting gaseous SiO and N.sub.2 at elevated temperature and pressure in a reaction zone in the presence of a plurality of
5744235 Process for preparing composite structures April 28, 1998
A compounding process for preparing a composite that includes introducing one or more fillers and a matrix material into a stirred ball mill and subjecting the fillers and the matrix material to a combination of shear and impact forces under reaction conditions including reaction time
5651922 High strength conductive polymers July 29, 1997
A polymeric composition having improved toughness and conductivity comprising carbon fibrils, at least a portion of which are in the form of aggregates, wherein, as measured on an area basis, substantially all of the aggregates are less than about 35 .mu.m in diameter. A polymeric co
5643502 High strength conductive polymers containing carbon fibrils July 1, 1997
A polymeric composition having improved toughness and conductivity comprising carbon fibrils, at least a portion of which are in the form of aggregates, wherein, as measured on an area basis, substantially all of the aggregates are less than about 35 .mu.m in diameter. A polymeric co
5611964 Fibril filled molding compositions March 18, 1997
A composite that includes a reaction injection molded matrix into which carbon fibrils have been incorporated, and a molding composition suitable for preparing such a composite. The invention also features a composite that includes a premix in which carbon fibrils have been incorporated
5171560 Carbon fibrils, method for producing same, and encapsulated catalyst December 15, 1992
A process for preparing carbon fibrils using discrete, unfused, metal-containing catalytic particles encapsulated in non-graphitic carbon, a carbide, or an organic polymer.
5110693 Electrochemical cell May 5, 1992
An improved electrochemical cell that includes a catalytic electrode on which an electrochemical reaction occurs into which is incorporated an amount of electrically conductive carbon microfibers having diameters less than or equal to 0.1 micron sufficient to enhance the electrical c
5098771 Conductive coatings and inks March 24, 1992
An electrically conductive composite in a form suitable for applying to the surface of a substrate that includes a polymeric binder into which carbon fibrils are incorporated.

 
 
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