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| Patent # | Description |
|---|---|
| US-4,833,275 |
Flexible splice for an impregnated paper submarine cable A flexible splice for a submarine cable of the type comprising a plurality of conductors (21, 22, 23) insulated by paper impregnated with oil under pressure (24)... |
| US-4,833,274 |
Perfluoroalkanes and haloperfluoroalkanes, their percursors and process
for their synthesis New perfluoroalkanes and haloperfluoroalkanes, having low melting point and high thermal and chemical stability, constituted by preferably branched ... |
| US-4,833,273 |
Process for the resolution of 1-aminoindanes An improved process for the resolution of 1-aminoindanes into the R-isomer on a large scale is described. The resolving agent used in the process is ... |
| US-4,833,272 |
Process for preparing polycarboxylic acid Disclosed is a process for preparing a polycarboxylic acid, the process comprising subjecting a Diels-Alder reaction product of maleic anhydride and a diene... |
| US-4,833,271 |
Structurally defined oligomers and preparation thereof for the
protection of oxidative phosphorylation and... Structurally-defined, low molecular weight oligomers and preparation thereof which are active in the protection of oxidative physphorylation of mitochondria and... |
| US-4,833,270 |
Process for preparing 2-chloro-4,5-difluorobenzoic acid This disclosure describes a novel process for preparing 2-chloro-4,5-difluorobenzoic acid which is useful in the preparation of ... |
| US-4,833,269 |
Method for purifying terephthalic acid recycle streams A process is disclosed for purifying a crude terephthalic acid mother liquor stream comprising oxidation catalysts, terephthalic acid, color bodies and... |
| US-4,833,268 |
Threo-adrenalinecarboxylic acid, and the production and uses thereof DL- or L-Threo-3-(3,4-dihydroxyphenyl)-N-methyl-serine which may also be termed as DL- or L-threo-adrenalinecarboxylic acid are now provided, which are new... |
| US-4,833,267 |
Method for production of unsaturated carboxylic acid esters This invention relates to a method for the production of unsaturated carboxylic acid esters. More particularly, this invention relates to a method for efficient... |
| US-4,833,266 |
Process for preparing dihalovinylcyclopropanecarboxylates Novel syntheses of dihalovinylcyclopropanecarboxylates, including potent insecticides, are described. The processes begin with the reaction between an alkenol... |
| US-4,833,265 |
DATB and its bis-urethan The explosive 1,3-diamino-2,4,6-trinitrobenzene, commonly known as DATB, is prepred from m-phenylenediamine by making the bis-urethane m-phenylenediamine,... |
| US-4,833,264 |
5- or 6-alkoxycarbonyl-2,3-dicyanonaphthalenes A 5- or 6-alkoxycarbonyl-2,3-dicyanonaphthalene is a useful intermediate for synthesizing a tetrakis(alkoxycarbonyl) metal naphthalocyanine. |
| US-4,833,263 |
Novel electron-accepting compound and method for preparing the same An electron-accepting compound represented by the formula (I): ##STR1## wherein R represents a hydrogen atom or --B(Mes).sub.2 and Mes represents a mesityl... |
| US-4,833,262 |
Oxygen permeable polymeric materials A polymer represented by the general formula ##STR1## where m is the average degree of polymerization of the polymer, y is an integer from 1 to 3, x is an... |
| US-4,833,261 |
Ethylene oxide process This invention relates to a process for the production of ethylene oxide by contacting ethylene with an oxygen-containing gas in the presence of a catalyst... |
| US-4,833,260 |
Process for the epoxidation of olefinic compounds A process for the epoxidation of olefinic compounds, consisting of reacting said compounds with hydrogen peroxide either introduced as such or produced by... |
| US-4,833,259 |
Light screening agents The novel sunscreen agents which are esters, namely esters of p-methoxy-cinnamic acid with d,1-.alpha.-tocopherol, pantolactone or panthenol. |
| US-4,833,258 |
Intermediates useful in the preparation of HMG-COA reductase inhibitors Novel intermediates and a novel process for their preparation, where said intermediates are useful in the preparation of 6-hydroxymethyl and related oxidation... |
| US-4,833,257 |
Compositions of matter and methods of using same New and exceptionally potent antineoplastic agents denominated Bryostatin 9, Bryostatin 10, Bryostatin 11, Bryostatin 12 and Bryostatin 13 have been isolated... |
| US-4,833,256 |
Fluoran derivatives and recording material containing the same A fluoran derivative useful for a heat-sensitive recording material, having the following general formula I; ##STR1## wherein R.sub.1 and R.sub.2, which may... |
| US-4,833,255 |
Process for the preparation of indoline A process for the preparation of indoline without substantial formation of indole, comprises passing 2-(2-aminophenyl)ethanol, in a vapor phase and admixed with... |
| US-4,833,254 |
Heteroarotinoids as anticancer agents Novel heteroarotinoid compositions characterized by the formulae: ##STR1## where: X is S or O; OAc is the acetate group ##STR2## and R is --H, --OH,... |
| US-4,833,253 |
Process for the production of low-viscosity amphoteric surfactants Low viscosity amphoteric surfactants are prepared by quaternization of low diamine content imidazolines by a process in which certain addition and temperature... |
| US-4,833,252 |
Herbicidal sulfonylureas Substituted N-phenylsulfonyl-N'-pyrimidinylureas and N-phenylsulfonyl-N'-triazinylureas of the general formula ##STR1## and the salts thereof with amines,... |
| US-4,833,251 |
Compounds for tagging nucleic acid probes Nucleic acid hybridization probes are provided which comprise an N.sup.4 -(substituted amino)cytosine moiety, wherein the substituted amino group comprises a tag... |
| US-4,833,250 |
Process of converting a carboxylic acid or carboxylic acid halide group
to a trihalomethyl group Carboxylic acid or carboxylic acid halide groups on aryl or heterocyclic aryl rings are directly converted to trihalomethyl groups by using a ... |
| US-4,833,249 |
Isothiazolone 1,1-dioxide derivatives with psychotropic activity There are disclosed compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen, lower alkyl, aryl or halo, or R.sup.1... |
| US-4,833,248 |
Catalyst for vapor-phase intramolecular dehydration reaction of
alkanolamines A catalyst for the vapor phase intramolecular dehydration reaction of an alkanolamine represented by the general formula ##STR1## wherein each of R and R'... |
| US-4,833,247 |
Process for the production of 2-benzyl fatty acids A process for the production of 2-benzyl fatty acids and esters thereof corresponding to the following formula ##STR1## comprising reacting 2-fatty... |
| US-4,833,246 |
Novel pyrazolone dye A novel pyrazolone dye represented by the following formula (I), which can be effectively used as a filter dye, an irradiation inhibiting dye, an antihalation... |
| US-4,833,245 |
Heterocyclic compound The invention is concerned with novel heterocyclic compounds of the formula ##STR1## wherein R is C.sub.1-12 -alkyl, C.sub.3-12 -alkenyl, C.sub.3-12 -alkynyl ... |
| US-4,833,244 |
Ethanobenzazepines Novel ethanobenzazepines, processes for the preparation thereof, and a method of alleviating pain utilizing compounds or compositions thereof are disclosed. |
| US-4,833,243 |
Substituted carboxylic acid amide herbicides Novel substituted carboxylic acid amide herbicides of the formula ##STR1## wherein n is an integer from 1 to 4 each R is independently selected from hydrogen,... |
| US-4,833,242 |
Cephalosporin derivatives and salts thereof Novel cephalosporin derivatives and salts thereof are disclosed. These compounds exhibit excellent antimicrobial activity against a wide variety of Gram-negative... |
| US-4,833,241 |
Anthracycline compound Disclosed is an anthracycline compound of the following formula (I) or an acid addition salt thereof: ##STR1## These compounds are useful as intermediates... |
| US-4,833,240 |
Bicyclic aromatic derivatives, method for preparing them, and their use
in human and veterinary medicine and in... Bicyclic aromatic compounds, having the following formula: ##STR1## in which: n=0 or 1; R' represents H, OH, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4... |
| US-4,833,239 |
Method for the isolation and purification of DNA molecules A method for isolating and purifying nucleic acids from eukaryotic and prokaryotic cell cultures or viral cell cultures. |
| US-4,833,238 |
High strength fibers from chitin derivatives High tenacity chitin acetate/formate and chitosan acetate/formate fibers and the process for making such fibers are disclosed. |
| US-4,833,237 |
Process for producing granular porous chitosan A process for producing granular porous chitosan of extremely uniform particle size and having uniform fine pores on the spherical surface and cut cross... |
| US-4,833,236 |
Erythromycin derivatives Erythromycin derivatives represented by the general formula ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is a hydrogen atom or a... |
| US-4,833,235 |
Sulfo group-containing disaz compounds having a heterocyclic coupling
component radical Disazo compounds of the formula ##STR1## and salt thereof, D is the radical of a diazo component of the benzene or naphthalene series. K is the radical of a... |
| US-4,833,233 |
Human serum albumin crystals and method of preparation HSA crystals are provided in the form of tetragonal plates having the space groups P42.sub.1 2, the crystals being grown to sizes in excess of 0.5 mm in two... |
| US-4,833,232 |
Synthesis of novel highly intrinsic conducting organic polymers A conducting organic polymer including a cross-linked polyquinoline network and a process for making it. |
| US-4,833,231 |
Polymer having isoindole structure A polymer having an isoindole structure represented by the following general formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 independently represent... |
| US-4,833,230 |
Polyhydroxypolyamides and process for making same A new class of polyhydroxypolyamides is disclosed. The polyhydroxypolyamides, useful as fibers, plastics, coatings and adhesives, are characterizied by the... |
| US-4,833,229 |
Thermotropic copolyester having a nematic structure of the
liquid-crystalline phase A thermotropic copolyester, having a nematic structure of the liquid-crystalline phase within a desired range of mesophase temperature, contains units derived... |
| US-4,833,228 |
Linear rodlike polyesters A linear rodlike polyester of controlled rigidity and packing density which melts below 350.degree. C. and consists essentially of recurring units of the formula... |
| US-4,833,227 |
Epoxy resins prepared from perfluoroalkylene telomers Fluorinated polymers having epoxy resin structure, containing at least 10% by weight, preferably 20% by weight, of fluorine, prepared starting from ... |
| US-4,833,226 |
Hardener for curable one-package epoxy resin system A master batch of hardener for curable one-package epoxy resin system which comprises (I) a hardener consisting of (I) a hardener consisting of (i) a powder of an... |
| US-4,833,225 |
Polyquaternary polysiloxane polymers, their synthesis and use in
cosmetic preparations Polyquaternary polysiloxane polymers are disclosed comprising repeating units of ##STR1## wherein X is a bivalent hydrocarbon group with at least 4 carbon... |
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