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| Patent # | Description |
|---|---|
| US-5,326,926 |
Isomerization with improved RVP and C4 recovery A process for the isomerization of C.sub.4 -C.sub.6 paraffins that separates a low boiling or overhead fraction from a stabilizer in a stripping zone and... |
| US-5,326,925 |
Isomerization process for 2,3-dimethylbutane production An isomerization process maximizes the production of 2,3-dimethylbutane by using an arrangement of two reaction zones that operate at low conversion conditions... |
| US-5,326,924 |
Alkylation aid Alkylation processes of the type used in the refining of petroleum can be improved by using a promoter composition which contains an alkyl phosphate ester amine... |
| US-5,326,923 |
Method for regenerating certain acidic hydrocarbon conversion catalysts
by solvent extraction This invention is a process for the regeneration of solid acidic hydrocarbon conversion catalysts, but particularly certain transition aluminas and zeolites... |
| US-5,326,922 |
Hydrogen transfer process The transfer of hydrogen from a paraffin to an olefin is carried out in the presence of, as catalyst, MCM-36. Especially when the paraffin reactant is an... |
| US-5,326,921 |
AlCl.sub.3 -catalyzed process for preparing poly-N-butenes from mixed
butenes Poly-n-butene is prepared from a mixed C.sub.4 hydrocarbon feedstream containing less than about 5 wt. % isobutylene using an AlCl.sub.3 -HCl catalyst system... |
| US-5,326,920 |
Isobutylene oligomerization using supported acid catalysts A process for the production of polyisobutylene (PIB) from isobutene-containing feed comprises contacting said feed with a catalyst composition comprising... |
| US-5,326,919 |
Monomer recovery from polymeric materials A method is described for the recovery of high yields of monomers from waste and scrape polymeric materials with minimal amounts of char and tar. The process... |
| US-5,326,918 |
Purification of 1,1-dichloro-1-fluoroethane This invention relates to a process to remove the unsaturated impurities (in particular vinylidene chloride) present in a crude 1,1-dichloro-1-fluoroethane. This... |
| US-5,326,917 |
Fluorinated monomers and polymers Disclosed herein are novel monomers of the formula CF.sub.2 .dbd.CF(CF.sub.2).sub.n CH.sub.2 OCF.dbd.CF.sub.2, wherein n is 1, 2 or 3, and novel intermediates of... |
| US-5,326,916 |
Process for producing acrolein A process for producing acrolein which comprises bringing a reaction gas resulting from a catalytic oxidation of propylene into contact in a cooling tower with a... |
| US-5,326,915 |
Catalyst granules, in particular for the oxidative dehydrogenation of
methanol in order to yield formaldehyde A configuration of cylindrical catalyst granules displays a trilobed or triangular cross-section provided with three through-bores equidistant from each other,... |
| US-5,326,914 |
Homogeneous catalytic hydrodechlorination of chlorocarbons This invention relates to a liquid phase process for the preparation of R.sub.f CHXY by the homogeneous catalytic hydrodechlorination of R.sub.f CClXY wherein X... |
| US-5,326,913 |
Process for preparing fluorinated compound A fluorinated compound of the formula: in which R is a perfluoroalkyl group, a perchloroalkyl group, a polyfluoroalkyl group, a polychloroalkyl group or a ... |
| US-5,326,912 |
Hydrogenation catalyst, and a method for its preparation and use, in
particular for hydrogenation and/or... A metallic catalyst composition on an inert support, suitable in particular for hydrogenolysis reactions of higher polyhydric alcohols, characterised in that it... |
| US-5,326,911 |
Process for the preparation of ortho-amides Ortho-amides of the formula ##STR1## can be prepared by reacting salts of the formula ##STR2## with alcoholates of the formula where the radicals... |
| US-5,326,910 |
Monophospha-S-triazines of improved hydrolytic and thermal oxidative
stability Hydrolytically and thermooxidatively stable monophospha-s-triazines prepared by reaction of octafluoroisobutylene epoxide with an acid fluoride followed by... |
| US-5,326,909 |
Stabilization of monomeric N-vinylformamide A method of stabilizing N-vinylformamide, which may contain customary polymerization inhibitors, against polymerization during storage or transport, comprises... |
| US-5,326,908 |
Process for the preparation of asparagine The present invention is an improved process for the synthesis of asparagine, a non-essential amino acid useful in food and medical applications. The process... |
| US-5,326,907 |
2-aminoethanesulfonic acid derivatives of
3,5-disubstituted-4-hydroxyphenolic thioethers The present invention relates to compounds of the Formula I ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and independently represent... |
| US-5,326,906 |
Process for the extractive removal of phospho- and sulfobetaines from
acidic reaction solutions The ampholytes are extracted from the reaction solution with a liquid cation exchanger which is immiscible with the acidic aqueous reaction solution, where the... |
| US-5,326,905 |
Benzylphosphonic acid tyrosine kinase inhibitors Certain benzylphosphonic acid compounds, and their pharmaceutically-acceptable salts, are inhibitors of tyrosine kinase enzymes, and so are useful for the... |
| US-5,326,904 |
Peroxyacid manufacture The compound 6,6'-terephthal-di(amidoperoxyhexanoic) acid is disclosed. |
| US-5,326,903 |
Process for preparing isocyanates using sintered oxides A method for preparing isocyanates by the thermal decomposition of carbamates in the presence of a sintered oxide as catalyst under gaseous phase condition. The... |
| US-5,326,902 |
Oxyalkyne compounds, pharmaceutical compositions containing them and
processes for preparing such compounds and... Oxyalkyne compounds corresponding to the formula I ##STR1## in which the substituent Y in the meta- or para-position is R.sup.1 represents CH.sub.3 or... |
| US-5,326,901 |
3-butenoic acid derivatives as intermediates for pesticides Novel 2-(2,2-difluorocyclopropyl)-acetic acid derivatives of formula I ##STR1## wherein A is oxygen or --NR.sub.1 --, B is C.sub.2 -C.sub.6 alkylene, D is... |
| US-5,326,900 |
Aromatic keto compounds, the preparation thereof, and drugs and
cosmetics containing these Compounds of the general formula I ##STR1## and drugs and cosmetics prepared therefrom are described. |
| US-5,326,899 |
Process for preparation of iodopropargyl carbamates A Process for producing N-alkyl iodopropargyl carbamate comprising: A. reacting a dialkyl(C.sub.1 -C.sub.3) carbonate with propargyl alcohol in the presence of a... |
| US-5,326,898 |
Substituted phenylethenyl compounds having retinoid-like biological
activity Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently are hydrogen, lower alkyl of 1 to 6 carbons, halogen or lower... |
| US-5,326,897 |
Process for the stabilization of ethanolic ethylmagnesium carbonate
solutions In a process for the stabilization of a solution of ethylmagnesium carbonate in ethanol, which has been prepared by the reaction of a suspension of magnesium... |
| US-5,326,896 |
Conversion of direct process high-boiling component to silane monomers
in the presence of hydrogen gas The present invention is a process for converting a high-boiling component resulting from the reaction of an organochloride with silicon into commercially more... |
| US-5,326,895 |
3-(vinylbenzyloxy)propylsilane compounds 3-(Vinylbenzyloxy)propylsilane compounds represented by the general formula, CH.sub.2 CH.PHI. CH.sub.2 OCH.sub. CH.sub.2 CH.sub.2 SiR.sup.1.sub.n... |
| US-5,326,894 |
.beta.-cyanoalkylsilane preparation using divinylbenzene/4-vinylpyridine
copolymer resin as catalyst A process for the preparation of hydrolyzable .beta.-cyanoalkylsilanes. More particularly, this invention relates to the catalytic addition of silicon hydrides... |
| US-5,326,893 |
Aromatic cyanate-siloxane Compounds are prepared which have at least one aromatic cyanate group and at least one organosiloxane moiety per molecule. These compounds when cured possess... |
| US-5,326,892 |
Bimetallic alkoxide reagents and method of making the same Bimetallic alkoxide compounds useful as source reagents for chemical vapor deposition of ferroelectric ceramics such as lead titanate and lead zirconate, and... |
| US-5,326,891 |
Hydrophobicized double layer hydroxide compounds Novel hydrophobicized double-layer hydroxide compounds, processes for their production by reaction of double-layer hydroxides with aliphatic mono- and/or... |
| US-5,326,890 |
Sulfonated silicones and methods for their production A process for the preparation of sulfonated silicones is disclosed. The process comprises the steps of (a) hydrosilylating an olefin-terminal silylketene acetal... |
| US-5,326,889 |
Process for producing 1,4-butanediol and tetrahydrofuran There is disclosed a process for the production of 1,4-butanediol and tetrahydrofuran by the catalytic hydrogenation in the gas phase of .gamma.-butyrolactone... |
| US-5,326,888 |
Carbonylation of allylic alcohols and synthesis of an ambergris fragance
compound A process for the carbonylation of allylic alcohols such as nerolidol, farnesol, or their monocyclic analogues with carbon monoxide at a pressure of at least 30... |
| US-5,326,887 |
Process for the preparation of 1,4-dioxane-2,5-diones This invention relates to a process for preparing 1,4-dioxane-2,5-diones comprising reacting an .alpha.-hydroxy acid oligomer or an ester of an .alpha.-hydroxy... |
| US-5,326,886 |
Maintaining VPO catalyst performance by aluminizing reactor internals in
oxidation of butane to maleic anhydride Catalysts comprising a compound of vanadium, phosphorus and oxygen which are employed in the oxidation of n-butane to maleic anhydride are protected from... |
| US-5,326,885 |
Process of preparing enriched enantiomers of glycerol carbonate and
derivatives thereof for synthesis of... Enriched enantiomers of glycerol Carbonate are produced under the influence of a hydrolytic enzyme, either by selective esterification of racemic glycerol... |
| US-5,326,884 |
Process for optically active 3-(methane-sulfonyloxy)thiolane and analogs Intermediates and a stepwise process for the conversion of D-methionine or certain of its derivatives to optically active compounds of the formula ##STR1## ... |
| US-5,326,883 |
Oxime ether derivatives having lipoxygenase inhibitory activity The present invention provides certain substituted oxime ether compounds which inhibit lipoxygenase enzyme activity and are useful in the treatment of allergic... |
| US-5,326,882 |
Chemiluminescent 3-(substituted Adamant-2'-Ylidene) 1,2-dioxetanes Enzymatically cleavable chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature... |
| US-5,326,881 |
Unsaturated imide compounds containing alicyclic structure, process for
producing the same and intermediate... An unsaturated imide compound represented by formula (1): ##STR1## wherein Q is an alicyclic structure-containing hydrocarbon group having 4-20 carbon... |
| US-5,326,880 |
Asymmetrical polypyrrolidonyl compounds having a wide liquid range This invention relates to non-polymeric, asymmetrical, low freezing, high boiling, aliphatic compounds containing from 2 to 5 pyrrolidonyl rings and from 13 to... |
| US-5,326,879 |
Indole derivatives Disclosed are indole derivatives of formula (I) ##STR1## wherein X and Y each independently represent H or --CH.sub.2 CH.sub.2 R; R represents pyridyl or... |
| US-5,326,878 |
Method for the resolution of chiral hydantoins Method of resolution of chiral hydantoins of the general formula I ##STR1## in which: R.sub.1 designates a lower alkyl radical comprising 1 to 5 carbon... |
| US-5,326,877 |
Herbicidal substituted triazolinones Herbicidally active substituted triazolinones of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl, alkenyl, alkinyl, halogenoalkyl,... |
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