Edward Pope - Oak Park CA, US Kenneth Kratsch - Palm Desert CA, US
International Classification:
C08G077/04
US Classification:
528/025000
Abstract:
Hafnium containing preceramic polymer is made through the reaction of hafnium halide compound with any of the following compounds: ethylene diamine, dimethyl ethylene diamine, piperazine, allylamine and or polyethylene-imine.
Edward Pope - Oak Park CA, US Jozsef Hepp - Thousand Oaks CA, US Kenneth Kratsch - Palm Desert CA, US
International Classification:
C01B 21/06 C01B 31/30
US Classification:
423439000, 423406000, 423409000
Abstract:
Hafnium containing preceramic polymer is made through the reaction of hafnium halide compound with any of the following compounds: ethylene diamine, dimethyl ethylene diamine, piperazine, allylamine and or polyethylene-imine.
Ceramic Filters Formed From Photocurable Pre-Ceramic Polymers
Edward J.A. Pope - Oak Park CA, US Jozsef Hepp - Thousand Oaks CA, US Kenneth M. Kratsch - Palm Desert CA, US
International Classification:
B01D 39/20 B01D 46/52 D01D 5/08
US Classification:
55521, 26417217, 55523
Abstract:
A method for making high temperature filter media includes the steps of melt-spinning a plurality of fibers of pre-ceramic thermoplastic polymer to form a non-woven textile web of the fibers, curing and cross-linking the thermoplastic polymer to a thermo-set polymer and thermally decomposing the thermo-set polymer to ceramic.
Stiochiometric Silicon Carbide Fibers From Thermo-Chemically Cured Polysilazanes
Edward J.A. Pope - Oak Park CA, US Christopher L. Hill - Woodland Hills CA, US Carl N. Brabham - Thousand Oaks CA, US Jerry M. King - Granada Hills CA, US Bernard T. Morkunas - Thousand Oaks CA, US
International Classification:
C01B 31/36
US Classification:
428367, 423345
Abstract:
A novel polycrystalline stoichiometric fine SiC fiber substantially free of impurities is produced using a novel pre-ceramic polymer. The pre-ceramic polymer is prepared by reacting a mixture of chlorodisilane, boron trichloride, and a vinyl chlorodisilane with an excess of hexamethyldisilazane to form the pre-ceramic polymer resin, which may then be melt-spun, cured, pyrolyzed and heat-treated to obtain the finished SiC fiber. The manufacturing process for the production of the fine SiC ceramic fiber allows for flexibility with respect to cross-linking, in that low-cost thermal treatments may replace more complex methods, while obtaining fibers with improved materials properties as compared to currently available SiC fibers.
Stiochiometric Silicon Carbide Fibers From Thermo-Chemically Cured Polysilazanes
A novel polycrystalline stoichiometric fine SiC fiber substantially free of impurities is produced using a novel pre-ceramic polymer. The pre-ceramic polymer is prepared by reacting a mixture of chlorodisilane, boron trichloride, and a vinyl chlorodisilane with an excess of hexamethyldisilazane to form the pre-ceramic polymer resin, which may then be melt-spun, cured, pyrolyzed and heat-treated to obtain the finished SiC fiber. The manufacturing process for the production of the fine SiC ceramic fiber allows for flexibility with respect to cross-linking, in that low-cost thermal treatments may replace more complex methods, while obtaining fibers with improved materials properties as compared to currently available SiC fibers.
Fluorescent Liquid Crystal Displays And Methods Of Making Same
A monochrome fluorescent liquid crystal display includes a blue back-light, a black and white liquid crystal screen and a fluorescent coating. The black and white liquid crystal screen is optically coupled to the blue backlight. The fluorescent coating is disposed on the front surface of the screen.
Isbn (Books And Publications)
25 Bicycle Tours in Southern Indiana: Scenic and Historic Rides Through Hoosier Country