Dennis G. Peiffer - Annandale NJ, US Barbara Carstensen - Annandale NJ, US Richard S. Polizzotti - Milford NJ, US Paul J. Tindall - Flemington NJ, US David C. Dalrymple - Bloomsbury NJ, US
International Classification:
C08G 73/10 B01J 8/00 C09K 8/38 C08J 9/34
US Classification:
507117, 521 51, 422131
Abstract:
The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization.
Systems And Methods For Forming High Performance Compressible Objects
Dennis G. Peiffer - Annandale NJ, US Barbara Carstensen - Annandale NJ, US Richard S. Polizzotti - Milford NJ, US Paul J. Tindall - Flemington NJ, US David C. Dalrymple - Bloomsbury NJ, US
International Classification:
C08G 73/10 B01J 8/00 C09K 8/38 C08J 9/34
US Classification:
507117, 521 51, 422138
Abstract:
The present systems and methods utilize a polyamic acid solution as a precursor to form a polyimide bead having desired properties. The polyamic acid solution may be formed into a polyamic acid droplet. The polyamic acid droplet is then processed to form a polyamic acid bead, such as by extraction of solvent to concentrate the polyamic acid or by partial chemical imidization of the polyamic acid. The polyamic acid bead is then better able to retain its shape during subsequent processing steps, such as drying and pressurizing, before final thermal imidization.
Synthesis Of Preceramic Polymer-Stabilized Metal Colloids And Their Conversion To Microporous Ceramics
John Stewart Bradley - Mulheim an der Ruhr, DE Ernestine Williams Hill - Piscataway NJ John P. Dismukes - Annandale NJ Paul James Tindall - Flemington NJ
Assignee:
Exxon Research and Engineering Co. - Florham Park NJ
International Classification:
C08G 7706
US Classification:
524588
Abstract:
The present invention provides for microporous ceramic materials having a surface area in excess of 70 m. sup. 2 /gm and an open microporous cell structure wherein the micropores have a mean width of less than 20 Angstroms and wherein said microporous structure comprises a volume of greater than about 0. 03 cm. sup. 3 /gm of the ceramic. The invention also provides for a preceramic composite intermediate composition comprising a mixture of a ceramic precursor and nanoscale size metallic particles, whose pyrolysis product in inert atmosphere or in an ammonia atmosphere at temperatures of up to less than about 1100. degree. C. gives rise to the microporous ceramics of the invention. Also provided is a process for the preparation of the microporous ceramics of the invention involving pyrolysis of the composite intermediate under controlled conditions of heating up to temperatures of less than about 1100. degree. C. to form a microporous ceramic product.
Self-Supporting Structures Having Active Materials
A method and system for manufacturing and using a self-supporting structure in processing unit for adsorption or catalytic processes. The self-supporting structure has greater than 50% by weight of the active material in the self-supporting structure to provide a foam-geometry structure providing access to the active material. The self-supporting structures, which may be disposed in a processing unit, may be used in swing adsorption processes and other processes to enhance the recovery of hydrocarbons.
Self-Supporting Structures Having Active Materials
John F. Brody - Bound Brook NJ, US Paul J. Tindall - Flemington NJ, US
International Classification:
B01D 53/04 C10L 3/10 B01J 20/28 B01J 20/30
Abstract:
A method and system for manufacturing and using a self-supporting structure in processing unit for adsorption or catalytic processes. The self-supporting structure has greater than 50% by weight of the active material in the self-supporting structure to provide a foam-geometry structure providing access to the active material. The self-supporting structures, which may be disposed in a processing unit, may be used in swing adsorption processes and other processes to enhance the recovery of hydrocarbons.
Self-Supporting Structures Having Active Materials
John F. Brody - Bound Brook NJ, US Bradley Wooler - Quakertown PA, US Francesco J. Altera - Califon NJ, US Paul J. Tindall - Flemington NJ, US Yi Du - Coopersburg PA, US
A method and system for manufacturing and using a self-supporting structure in processing unit for adsorption or catalytic processes. The self-supporting structure has greater than 50% by weight of the active material in the self-supporting structure to provide an open-celled structure providing access to the active material. The self-supporting structures, which may be disposed in a processing unit, may be used in swing adsorption processes and other processes to enhance the recovery of hydrocarbons.