Now showing items 11-20 of 163
Synthesis of sugars from substituted and unsubstituted arene diols
(United States Patent and Trademark Office, 1993-04-06)
There are disclosed processes for the synthesis of substituted and unsubstituted arene diols useful in the further synthesis of sugars, sugar derivatives, chiral synthons or amino acids.
Fiber optic grating-based weighted, two-mode fiber sensors
(United States Patent and Trademark Office, 1993-05-04)
Two-mode, elliptical-core optic fibers with a permanent photo-induced index change are used as sensors with sensitivity varying as a function of length. The optic fiber sensors act as vibrational-mode filters thereby ...
Mono- and Di(functionally-substituted phenylene) semi-rigid crowns and processes for making
(United States Patent and Trademark Office, 1992-08-25)
Bis(carboalkoxy-substituted m-phenylene)-32-crown-10 compounds, useful as polymerizable monomers, can be formed in one step by reacting a functionalized dihydroxy aromatic compound with a dihalopolyether. In the same ...
Formation of reissert compound of benzoyl benzimidazole
(United States Patent and Trademark Office, 1991-03-19)
The Reissert compound of 1-benzoylbenzimidazole can be formed by reaction of an acid chloride (e.g., benzoyl chloride) and cyanide (e.g., trimethylsilyl cyanide) with benzoyl benzimidazole. It has the formula: ##STR1## and ...
Formation of poly(benzimidazole)
(United States Patent and Trademark Office, 1991-11-19)
A poly Ressert can be formed by first reacting benzimidazole with an aliphatic diacid chloride to form bisbenzimidazole and then reacting the bisbenzimidazole with an aliphatic diacid chloride and cyanide to form the poly ...
Syntheses of D-chiro-3-inosose and (+)-D-chiro inositol
(United States Patent and Trademark Office, 1997-05-27)
There are described novel biocatalytic and chemical processes for the synthesis of various oxygenated compounds. Particularly, there are described processes for the synthesis of a useful synthon 12 made by reacting a ...
Synthesis of (+)-pancratistatin
(United States Patent and Trademark Office, 1997-05-06)
This is described an improved process for the asymetric synthesis of (+)-Pancratistatin utilizing aziridines as the starting materials.
Metalorganic chemical vapor deposition of (Ba.sub.1-x Sr.sub.x)RuO.sub.3 /(Ba.sub.1-x Sr.sub.x)TIO.sub.3 /(Ba.sub.1-x Sr.sub.x)TiO.sub.3 /(Ba.sub.1- Sr.sub.x)RuO.sub.3 capacitors for high dielectric materials
(United States Patent and Trademark Office, 1997-05-13)
A dynamic random access memory device having a ferroelectric thin film perovskite (Ba.sub.1-x Sr.sub.x)TiO.sub.3 layer sandwiched by top and bottom (Ba.sub.1-x Sr.sub.x)RuO.sub.3 electrodes. The memory device is made by a ...
(United States Patent and Trademark Office, 1999-05-04)
A chitosan starting material is combined with a dilute organic acid to produce a chitosonium ion complex. The chitosonium ion complex is then cast, sprayed, extruded, or otherwise processed to produce filaments, coatings, ...
Wear reduction using cyclic amide compounds
(United States Patent and Trademark Office, 1998-12-22)
Method of reducing wear between rubbing surfaces by contacting a surface of a solid material with a cyclic amide before and/or while it is being rubbed against another surface.