Matches 201 - 250 out of 590 < 1 2 3 4 5 6 7 8 9 10 11 12 >
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5645696 Process for preparing unsaturated carboxylic acid esters and apparatus for preparing the same  
The present invention relates to a process for continuously preparing unsaturated carboxylic acid esters by esterifying an (aliphatic) alcohol having 1 to 8 carbon atoms with an unsaturated...
5644010 Curable liquid resin, process for the production thereof and use thereof  
A curable liquid resin which can give a coating composition capable of forming a film, the curable liquid resin being a copolymer obtained from (A) a monomer of the formula (1) or (2), CH 2 ...
5606102 Process for the manufacture of butyl acrylate by direct esterification  
In this esterification, catalysed by H 2 SO 4 , the crude reaction mixture comprising ester, butanol, acrylic acid, BuSO 4 H and traces of H 2 SO 4 is obtained; BuSO 4 H is hydrolysed (in R2)...
5599960 3,5-dimethyl-pentenyl-dihydro-2(3H)-furanone isomer mixtures, organoleptic uses thereof, process for preparing same and process intermediates therefor  
Described are 3,5-dimethyl-pentenyl-dihydro-2(3H)-furanone isomer mixtures defined according to the structure: ##STR1## wherein structure represents mixtures wherein in the mixture in each of the...
5596126 Catalytic preparation of sec-butyl acrylate  
For preparing sec-butyl acrylate, acrylic acid is reacted with 1-butene in the presence of a zirconium-based solid superacid as the catalyst, for example a calcined reaction product of 10-15 parts...
5589548 Process for preparing 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...
5587499 (Meth) acrylic compounds, process for their preparation and their application to the synthesis of new polymers  
These compounds are denoted by the following formula (I): ##STR1## in which: Z denotes H or a linear or branched alkyl radical, X denotes O or S, each of A and B independently denotes an...
5580995 Process for preparing anhydride-functional monomers  
Anhydride-functional polymerizable monomers having the structure: ##STR1## and polymers and reactive compositions prepared from these monomers are disclosed. The reactive compositions are...
5536873 Preparation of pentenoic acid  
3-pentenoic acid or the R ester of pentenoic acid is produced by treating pentenoyl chloride in a reactive distillation zone with ROH where R is hydrogen or hydrocarbon of 1 to 6 carbon atoms....
5532421 Method for the isomerization of cis-alkenyl compounds  
An object of the present invention is to provide a method for the preparation of geometrical isomers which are important as constituents of synthetic pheromones, synthetic perfumes, terpenes and...
5510510 Inhibitors of farnesyl protein transferase  
Inhibition of farnesyl transferase, which is an enzyme involved in ras oncogene expression, and inhibition of cholesterol biosynthesis, are effected by compounds of the formula ##STR1## their...
5504243 Method for inhibiting polymerization of (meth) acrylic acid and esters thereof  
Disclosed herein is a method for inhibiting polymerizable (meth)acrylic acid and esters thereof from polymerizing during their production, transportation and storage by using as the inhibitor...
5491250 Process for purifying vinylically unsaturated compounds prepared using a palladium-complex catalyst  
A crude vinylically unsaturated product formed from a palladium-complex-catalyzed reaction of a reactant halide selected from the group consisting of aryl, allyl, vinyl, and benzyl halides, and a...
5482979 Compounds containing tertiary amino groups, a process for their production and their use as catalysts  
Compounds containing ester groups and tertiary amino groups and optionally hydroxyl groups are made by reacting optionally hydroxyfunctional acetoacetic acid esters of monofunctional or...
5475029 Farnesyl compounds as cholesterol lowering agents  
Farnesyl derivatives, particularly farnesyl acetate, are used to lower the 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase activity in cells, thereby reducing cholesterol biosynthesis....
5453533 Inhibitors of influenza virus neuraminidase and methods of making and using the same  
An influenza virus neuraminidase inhibitor, its analogs, its pharmaceutically acceptable salts, derivatives, and mixtures thereof having the following formula: ##STR1## where A is CO 2 H, CO 2 H...
5449816 Amino-oxy esters  
The invention relates to hydroxylamine derivatives of the general formula ##STR1## in which A denotes a divalent connecting link, R 1 can be a hydrogen atom or a C 1 -C 4 alkyl group, Z stands...
5434281 Process for the stereospecific synthesis of leukotriene B.sub.4 in its 6Z, 8E, 10E configuration and intermediates  
Process for the stereospecific synthesis of leukotriene B 4 (LTB 4 ) of 6Z, 8E, 10E configuration of formula ##STR1## in which a dibenzoate triether is prepared which is subjected to a reductive...
5420347 Processes and intermediates for N-(S-3-alkyl-heptanoyl)-D-gamma-glutamyl-glycyl-D-alanine  
Immunoregulatory N-(S-3-alkyl-4-heptenoyl)- and N-(S-3-alkylheptanoyl)-D-gamma-glutamyl-glycyl-D-alanine and esters thereof are synthesized via R-trans-2-hexen-4-ols, R-3-alkyl-4-heptenoic acid and...
5414108 Process for the preparation of carboxylic acids and derivatives of them  
The subject matter of the invention is a process for the preparation of carboxylic acids and derivatives of them of the general formula ##STR1## wherein R means hydrogen, or a C 1 -4 alkyl or a (C...
5407957 Production of docosahexaenoic acid by dinoflagellates  
This invention relates to a process for producing a single cell edible oil containing DHA, to the oil itself and to uses for the oil. Marine microorganisms are cultivated in fermentors and induced...
5405974 Process for producing a lactone or an ester  
A process for producing a lactone or an ester represented by the following general formula (2), wherein R 1 and R 2 , identical or different, each represents (C 1 --C 20 ) alkyl group; alkyl...
5386052 Process for producing acrylic or methacrylic esters  
There is provided a process for producing an acrylic or methacrylic ester, comprising the steps of: (a) reacting acrylic or methacrylic acid with an alcohol having 4 or more-carbon atoms in the...
5384381 Graft copolymers having improved phase binding between the graft base and the grafted-on polymer phase  
Graft copolymers having improved phase binding between the graft base and the grafted-on polymer, are prepared from: a) a grafted-on polymer phase containing one or more monomers from the group...
5360926 Process for producing methyl methacrylate  
An efficient process for producing methyl methacrylate which can give a high methacrylic acid conversion even when the mole ratio of methanol to methacrylic acid is small, said process comprises...
5354877 Catalytic hydrogenation of polyunsaturated fatty acids or derivatives using a palladium/carbonic acid catalytic complex  
Mono-unsaturated fatty acids or their derivates are produced by hydrogenating poly-unaturated fatty acids or their derivates at 0° to 150° C., in a pressure range from 800 to 1500 hPa, with...
5349075 Continous esterification of carboxylic and fatty acids in the absense of a catalyst  
The invention provides a process for the esterification of a C 2 -C 24 monocarboxylic acid with a C 1 -C 5 monoalcohol in a reactor at an increased reaction temperature and increased pressure...
5342985 Organic derivatives of rhenium oxides and their preparation and use for the metathesis of olefins  
The invention relates to a process for the metathesis of olefins which comprises reacting an olefin of the formula YCZCZ--(CX 2 ) n R 2 (II) wherein n is an integer from 1 to 28, X...
5312814 α-phosphonocarboxylate squalene synthetase inhibitors  
α- Phosphonocarboxylate compounds are provided which inhibit the enzyme squalene synthetase and thereby inhibit cholesterol biosynthesis. These compounds have the formula ##STR1## wherein R 1 is...
5302748 Esterification process  
An improved process for preparing esters of an alcohol and a carboxylic acid employing sulfuric acid in an amount effective to both catalyze the reaction and to remove or immobilize the water of...
5302746 Process for producing carboxylic acid ester  
A process for producing a carboxylic acid ester which comprises reacting a carboxylic acid with an alcohol in the presence of an acid catalyst to produce a reaction solution and neutralizing the...
5300584 Low viscosity diprimary amine reactive modifiers for epoxy resins  
A low viscosity, diprimary amine-terminated reactive liquid polymer with low residual amine content, comprising the reaction product of a diprimary amine having the following formula H 2 ...
5243069 Ester of Michael addition homopolymers of acrylic acid  
There is described the preparation of esters of an acid having the structure CH 2 CHCO 2 (CH 2 CH 2 CO 2 ) n H (AOnPA herein) and their use to form polymers, as reactive diluents and...
5223644 Nitrosamine inhibition  
Bicarbonates and/or carbonates are used in greater than catalytic amounts to inhibit the formation of nitrosamines during the preparation, storage and/or use of amine oxides.
5221764 Methods and compositions for inhibiting acrylic acid polymerization  
Methods and compositions are provided for inhibiting the polymerization of acrylic acid monomers during elevated temperature processing thereof or during storage or shipment of acrylic acid...
5206421 Method for producing 4-hydroxybutyl (meth)acrylate  
4-Hydroxybutyl (meth)acrylate is prepared by reacting (meth)acrylic acid with 1,4-butanediol in the presence of an acidic catalyst. 1,4-Butanediol di(meth)acrylate is added at the beginning of the...
5194668 Process for production of carboxylic acid esters and formamide  
Carboxylic acid esters and formamide are efficiently obtained by reacting carboxylic acid amides and formic acid esters, or by reacting carboxylic acid amides, alcohols and carbon monoxide in the...
5189201 Process for preparation of lower fatty acid ester  
A lower fatty acid ester such as ethyl acetate or ethyl acrylate is prepared by a process in which a lower fatty acid such as acetic acid or acrylic acid is reacted with a lower olefin such as...
5187309 Process for the continuous preparation of lower acrylates  
Process for the continuous preparation of lower acrylates from an aqueous solution of acrylic acid and from a lower alcohol, the esterification reaction taking place in liquid phase in a reactor,...
5179097 Salts of non-steroidal anti-inflammatory carboxylic acids and anti-lipidemic carboxylic acids  
Novel choline salts of non-steroidal anti-inflammatory carboxylic acids and anti-lipidemic carboxylic acids are described. Additionally, blends of choline salts with the above carboxylic acids are...
5166410 Preparation of carboxylic acid esters  
The present invention relates to a process for the preparation of higher alkyl acrylic acid esters which comprises contacting and reacting under ene reaction conditions one or more olefins with one...
5166373 Acyclic terpenes  
The present invention provides novel acyclic terpenes of the formula: ##STR1## which are useful as intermediates for the industrially advantageous production of sarcophytol A.
5155252 Material for dentistry  
A material for dentistry having a low odor, a low stimulation and a proper dough stage time is here disclosed which is prepared by blending a monomer selected from the group consisting of...
5151547 Process for producing organic carboxylic acid esters  
Disclosed is a process for producing an organic carboxylic acid ester from an organic carboxylic acid corresponding to said organic carboxylic acid ester and an alcohol by esterification reaction...
5145989 Recovery of acrylic acid and/or ethyl acrylate from black acid  
Black acid or the sulfuric acid residue obtained in the manufacture of ethyl acrylate by reaction of ethylene and acrylic acid in the presence of sulfuric acid is heated and distilled in the...
5138092 Process for obtaining sec-butyl acrylate  
It comprises reacting, both continuously and discontinuously, acrylic acid and 1-butene in the presence of an ionic exchange resin that contains sulfonic acid groups, carrying out the reaction at a...
5130471 Stabilized acrylic monomer compositions  
A stabilized acrylic monomer composition is provided in which polymerization of the monomer is inhibited during transport and storage as well as during the distillation process for purifying or...
5068399 Process for preparing unsaturated carboxylic acid ester  
Disclosed is a process for preparing, α, β-unsaturated carboxylic acid ester from α-hydroxycarboxylic acid ester, a α-alkoxycarboxylic acid ester or β-alkoxycarboxylic acid ester as a starting...
5049681 Optically active allyl alcohol and process for producing leucotriene B.sub. 4  
A novel optically active allyl alcohol derivative represented by the following general formulae (I), (II), (III) and (IV): ##STR1## The novel optically active allyl alcohol can be used effectively...
5034535 Process for S-metoprolol via oxazolidin-2-one  
A process for preparing S-metoprolol of the formula ##STR1## or a salt thereof, with high enantiomeric purity, is described, whereby a (S)-5-hydroxymethyl-3-isopropyloxazolidin-2-one sulfonic acid...
Matches 201 - 250 out of 590 < 1 2 3 4 5 6 7 8 9 10 11 12 >