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7273641 |
Optically anisotropic element comprising discotic compound
An optically anisotropic element comprises a discotic compound. The discotic compound has an oriented discotic plane. The discotic compound has a molecular structure represented by the formula (I)...
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7261836 |
Chiral dopant with phenylethanediol functionality
The invention pertains to a phenylethanediol derivative having at least one polymerizable group, characterized in that the phenylethanediol derivative further comprises at least one...
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7161024 |
Process for the preparation and purification of 2-(alkoxyalkylidene)-3-ketoalkanoic acid esters from 3-ketoalkanoic acid esters
In its several embodiments, this invention discloses a novel process to prepare the compounds of Formula 3:
wherein R 1 is lower alkyl, and R 2 and R 3 can be the same or different, each...
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6743943 |
Polymerizable halogenated vinyl ethers
Vinyl ether compounds having the formula: R—O—X—O—CH═CH 2 wherein R is a radical selected from R 1 —C n H m —, R 1 —C n H m —C(═O)—, R 1 —C n H m...
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6353012 |
15-Hydroxyeicosatetraenoic acid-related compounds and methods of use
HETE derivatives and methods of their use for treating dry eye are disclosed.
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6353129 |
Water soluble tri-substituted 1,2-dioxetane compounds having increased storage stability, synthetic processes and intermediates
Stable, enzymatically triggered chemiluminescent 1,2-dioxetanes with improved water solubility and storage stability are provided as well as synthetic processes and intermediates used in their...
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6103801 |
2-substituted succinate esters
This invention relates to a process for producing 2-substituted succinate esters of formula (I) by reacting (a) a dicarboxylic compound with a first alcohol R'O[CH'.CH 2 O] x H where x is 0 or an...
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5739378 |
Complex hydrophobe-containing oligomers
This invention relates to polymers, especially emulsion polymers, and their use for the thickening of a variety of aqueous systems, to methods of thickening utilizing the polymers, to enhancement...
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5731383 |
Difunctional telechelic linear non-crosslinked polyolefins
This invention relates to difunctional telechelic linear non-crosslinked polyolefins without pendant chain branched groups. The polyolefin compounds of this invention are useful for preparing high...
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5698641 |
Substrate coated with composition of non-cyclic polyanhydride and polyglycidyl oligomer
A coating composition applied to a substrate wherein the composition contains a solids content of at least about 65 percent by weight and includes a polyanhydride having more than one non-cyclic...
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5633330 |
Coating composition of non-cyclic polyanhydride and glycidyl oligomer
A coating composition with a solids content of at least about 65% by weight comprises a polyanhydride having more than one non-cyclic anhydride moiety, a glycidyl groups-containing oligomer, a...
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5633020 |
Coating composition of non-cyclic polyanhydride and co-reactant resin
A coating composition with a solids content of at least about 65% by weight comprises a polyanhydride having more than one non-cyclic anhydride moiety, a co-reactant resin such as a glycidyl...
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5602274 |
Polyanhydride containing non-cyclic anhydride moieties
A polyanhydride having a molecular weight of no more than about 2000 is useful in a coating composition with a coreactant resin such as an epoxy resin and comprises: (a) a polyvalent organic...
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5453535 |
Preparation of α,ω-dicarboxylic acid diesters
A process for the preparation of a α,ω-dicarboxylic acid diester of the general formula I ##STR1## in which R 1 , R 2 , R 3 , R 4 , R 5 denotes hydrogen, C 1 -C 20 alkyl, C 2 -C 20 alkenyl,...
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5442109 |
Preparation of oxadimethacrylic acid
At least 99% pure 2,2'[oxybis (methylene)]bis-2-propenoic acid CH 2 C(COOH)CH 2 --O--CH 2 C(COOH)CH 2 is prepared by hydrolyzing an ester thereof in an aqueous basic medium and then...
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5393917 |
Isolation and purification of oxadimethacrylics
A process for isolating and purifying oxadimethacrylics of the general formula I CH 2 C(A)CH 2 --O--CH 2 C(B)CH 2 I where A and B are selected from the group consisting of --COOR 1 ,...
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5354895 |
Oxadimethacrylics and preparation thereof
Oxadimethacrylics useful for preparing pollers have the general formula I CH 2 C(A)CH 2 --O--CH 2 C(B)CH 2 I where A and B are selected from the group consisting of --COOR 1 , --COR 1 ,...
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5308864 |
6-(hydronaphtyl-1-ethyl)-4-hydroxy-3,4,5,6-tetrahydro-2H-pyran-2-ones and the corresponding hydroxy acids
Compounds of either of general formulae (I) and (II), wherein: R 1 represents a C 1 -8 alkyl, C 3 -8 cycloalkyl, C 3 -8 cycloalkyl(C 1 -8)alkyl, C 2 -8 alkenyl, or C 1 -6 alkyl substituted phenyl...
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5266713 |
Aryl alkenoic acid derivatives as leukotriene antagonists
Aryl alkenoic acid derivatives, and physiologically acceptable salts thereof, are provided which are potent leukotriene antagonists and may be used for the treatment of circulatory diseases and...
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5248833 |
Process for purifying polyols made with double metal cyanide catalysts
A process for purifying polyether polyols prepared using double metal cyanide (DMC) catalysts is disclosed. The process involves combining a mixture of the polyol and a C 1 -C 6 aliphatic alcohol...
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5113012 |
Process for the production of 1,3-cyclopentanedione
A process for the production of 1,3-cyclopentanedione, which is a versatile intermediate product for numerous active ingredient syntheses. For this purpose, a malonic acid ester is reacted with a...
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5045586 |
Lubricants for thermoplastic resins
The present invention is directed to branched polyesters derived from the reaction product of hydroxy stearic acid or hydroxy stearic alkoxylate, a guerbet alochol or guerbet alcohol alkoxylate,...
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5041619 |
Process for the preparation of alkoxyalkylidenemalonic acid esters
A process for the preparation of alkoxyalkylidenemalonic acid esters. The reaction is catalyzed by easily separable, insoluble aluminum silicates.
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4902819 |
Preparation of sodium diethyl oxalacetate
Sodium diethyl oxalacetate is prepared in a specific manner by adding sodium ethoxide to a mixture of diethyl oxalate and ethyl acetate to obtain a free flowing sodium salt which is easily...
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4851566 |
Process for producing organic compounds containing an alkoxyalkylidene group
Process for preparing alkyl alkoxyalkylidenemalonate. An alkyl malonate is condensed with an orthoester in the presence of a carboxylic acid or its anhydride and a metal compound of the group...
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4762946 |
Esters of unsaturated carboxylic acids
Polymeric pour point depressants are described which are prepared from new esters of α,β-olefinically unsaturated carboxylic acids of the formula R 1 --CO--[--O--A--CO--]-- n OR wherein R...
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4738796 |
Process for preparing organic compounds containing an alkoxyalkylidene group
Process for the heat stabilization of alkyl alkoxyalkylidenemalonates in the presence of Lewis acids, such as metal catalytic compounds employed as catalysts during the preparation of the alkyl...
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4665218 |
Method for the preparation of alkoxymethylene compounds of acetic esters and substituted acetic esters
Disclosed is a method for preparation of alkoxymethylene compounds, especially methoxymethylene compounds, from substituted or unsubstituted acetic acid alkyl esters, especially methyl esters, from...
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4654432 |
Preparation of 2-(hydroxymethyl)-acrylonitrile and 2-(hydroxymethyl)-acrylates
2-(hydroxymethyl)-acrylonitrile and 2-(hydroxymethyl)-acrylates of the formula ##STR1## where X is --CN or ##STR2## and R is unsubstituted or substituted alkyl, are prepared by reacting...
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4652669 |
2-(1-hydroxycarbalkoxymethyl)-acrylonitriles and 2-(1-hydroxycarbalkoxymethyl)-acrylates and their preparation
2-(1-Hydroxycarbalkoxymethyl)-acrylonitriles and 2-(1-hydroxycarbalkoxymethyl)-acrylates are prepared by a process in which an acrylonitrile or an acrylate is reacted with a glyoxylate in an...
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4529814 |
Acyloxyalkadienoates and their preparation
Acyloxyalkadienoates of the formula ##STR1## where R 1 , R 2 , R 3 , R 6 and R 7 are each hydrogen or a hydrocarbon radical, and R 1 may furthermore be R 6 --O--CO--, R 4 is hydrogen or a...
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4503074 |
Halogenated geminal diesters
Certain new halogenated geminal diester compounds are described. The products are useful as broad spectrum antimicrobials.
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4414159 |
Vinyl ether monomers and polymers therefrom
Vinyl ether monomers derived from diesters of the formula: ##STR1## wherein R is CH 3 or C 2 H 5 and n is 0 to 10; copolymers of the vinyl ether monomers with one or more selected perfluorinated...
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4404144 |
Unsaturated analogs of β-alkyl-β-hydroxy glutaric acid and esters thereof
This invention relates to β-Alkyl-β-Hydroxy Glutaric acid .differential. ester derivatives which are useful as anti-hyperlipoproteinemia agents.
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4323695 |
Process for making an acrylic monomer
The invention relates to a novel process for making phenyl fluoroacrylate monomer. The monomer is obtained by reaction of a fluoroacrylic salt with an halogenating agent, followed by condensation...
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4311850 |
Preparation of higher muconic acid monesters
Muconic acid monoesters of alkanediols of 2-6 carbons and of phenol are prepared by copper (II) oxidative cleavage of phenols, catechols or orthobenzoquinones. The products are useful as comonomers...
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4311706 |
Novel dopa/dopamine prodrugs
Novel, transient prodrug forms of dopa and dopamine have (i) the structural formula (I): ##STR1## wherein each R is independently selected from the group consisting of hydrogen, R 3 -CO- and...
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4304927 |
Carboxylic acids, esters and salts of polyfluoroacetone
Compounds of the structure ##STR1## wherein X is --F or Cl and each R is independently --H, --CH 3 , --C 2 H 5 , --CH 2 CH 2 CH 3 , --CH 2 CH 2 CH 2 CH 3 or M where M is an alkali metal, an...
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4282373 |
Process for preparation of thiophenes
Compounds of the formula (II): ##STR1## wherein X is halogen, hydroxyl or functionalized hydroxyl; Y is halogen, hydroxyl or alkoxy; R 1 is a carboxylic acid group and ester thereof and amide...
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4245112 |
Novel penten-2-yl-derivatives
Novel penten-2-yl derivatives of the formula in the trans form ##STR1## wherein R is selected from the group consisting of hydrogen and acetyl and to a novel process for the preparation of methyl...
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4236022 |
Esters of 1,2-dihydroxyalkanes as cosmetic emulsifiers and cosmetic emulsions containing them
Mono- and dicarboxylic acid esters of 1,2-dihydroxyalkanes of the formulae ##STR1## wherein A represents a bivalent radical selected from the group consisting of alkylene having from 1 to 16 carbon...
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4234498 |
Preparation of glyceride esters
The invention concerns the preparation of glycerides in which glycidol is reacted with a fatty acid, first in the form of the anhydride to produce the corresponding epoxy glyceride or glycidol...
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4194053 |
Process for preparing esters of α-acetyl-α'-methylsuccinic acid and esters of α-methyl-α'-acetyl-α'-(5-methyl-3-oxohexyl)succinic acid
A diester of α-acetyl-α'-methyl succinic acid is prepared in improved yield under substantially anhydrous process conditions which minimizes decomposition of that diester by reacting an...
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4145559 |
Esters of 4-substituted 2-methyleneglutaric acids and method for preparing same
Esters of 4-substituted 2-methyleneglutaric acids are prepared by reacting an ester of acrylic acid with an ester of an α-substituted acrylic acid, such as an ester of methacrylic acid, in the...
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4071487 |
Anti-settling agents for pigmented aqueous lacquer and process for the manufacture of said agents
Water-dispersible (including water-soluble) salts of water-soluble amines with the anionic products formed by reacting at 200° C. to 250° C. a substantially neutral ester of a C 14 -20 saturated...
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4034863 |
Novel flotation agents for the beneficiation of phosphate ores
Partial esters of polycarboxylic acids having the structure ##STR1## wherein R is the radical remaining after removal of the hydroxyl group of a straight chain linear aliphatic alcohol having 12-22...
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3950388 |
Process for making hydroxyether carboxylates
Organic compounds having a substituent represented by the formula ##EQU1## wherein M is alkali metal or ammonium which are useful complexing agents for metal and/or alkaline earth metal ions are...
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3925442 |
Monomeric emulsion stabilizers
A novel class of monomeric emulsion stabilizers is prepared by reacting certain quaternary ammonium halides with anionic surfactants. In polymerization reactions these stabilizers become a part of...
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3907872 |
Alternating copolymers of trichloroethylene in vinyl acetate
Low molecular weight alternating copolymers of a major amount of trichloroethylene and a minor amount of vinyl acetate are useful as additives to organic polymers such as polyurethane and...
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3528995 |
SUBSTITUTED PERHALOCOUMALINS AND DERIVATIVES THEREOF
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