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Sudarsanan Varaprath Patents
Inventor:
Varaprath; Sudarsanan
Address:
Midland, MI
No. of patents:
6
Patents:




Patent Number Title Of Patent Date Issued
5246734 Amorphous silicon hermetic coatings for optical wave guides September 21, 1993
This invention relates to a method of forming amorphous silicon hermetic coatings on light conducting devices, including optical fibers, wave guides, light pipes, or cables. By the present invention, a halosilane, halodisilane or mixture of halosilanes is thermally decomposed in the
4933413 Process for synthesis of acylamino organosilicon compounds June 12, 1990
Organosilicon compounds containing at least one acylamino-substituted hydrocarbon radical are prepared by reacting an organohydroxysilicon compound containing at least one silicon-bonded hydroxy radical with a base to yield a silanolate. The silanolate is reacted with a cyclic aminos
4861906 Process for the synthesis of acylamino organosilicon compounds August 29, 1989
Organosilicon compounds containing at least one acylamino-substituted hydrocarbon radical are prepared by reacting an organosilicon compound containing at least one amino-substituted hydrocarbon radical with an acyl halide in a nonaqueous solvent and in the presence of a metal alkoxide i
4696834 Silicon-containing coatings and a method for their preparation September 29, 1987
The invention relates to the formation of silicon-containing coatings from the vapor phase thermal decomposition of halosilanes, polyhalodisilanes, polyhalosilanes or mixtures thereof in the presence of a metal catalyst. The instant invention also relates to the formation of silicon- and
4650881 Synthesis of isocoumarins via thallation-olefination of arenes March 17, 1987
Arenes, such as benzoic acid and substituted benzoic acids, are readily thallated by thallium(III) compounds such as the trifluoroacetate and subsequently reacted with palladium chloride and simple olefins, dienes, allylic halides, vinyl halides, vinyl esters, or unsaturated cyclopropane
4632996 Organopalladium additions to alkenyl- and methylenecyclopropanes and alkenyl- and methylenecyclo December 30, 1986
(Pi-allyl)palladium compounds are prepared by organopalladium addition to alkenyl- or methylenecyclopropanes or alkenyl- or methylenecyclobutanes. The reaction is conducted in the presence of a palladium salt and involves a novel ring-opening process and a subsequent rearrangement to pro


 
 
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