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National Distillers and Chemical Corporation Patents
Assignee:
National Distillers and Chemical Corporation
Address:
New York, NY
No. of patents:
243
Patents:


1 2 3 4 5










Patent Number Title Of Patent Date Issued
RE32084 Glycol aldehyde and ethylene glycol processes February 18, 1986
A process for preparing glycol aldehyde by reacting formaldehyde, hydrogen and carbon monoxide at elevated temperature and superatmospheric pressure in the presence of rhodium catalyst and conversion thereof to ethylene glycol as the substantially exclusive polyol product.
5256166 Terpolymer of ethylene, vinyl acetate and isobutylene useful as pour point depressants in distil October 26, 1993
Terpolymers of ethylene, vinyl acetate and controlled amounts of isobutylene useful as pour point depressants in distillate oils.
5081089 Chromium catalyst compositions and polymerization utilizing same January 14, 1992
Improved mixed chromium catalysts useful in particle form polymerizations to produce readily processable high density polyolefin resins which also have high resistance to environmental stress cracking are provided. First and second chromium-containing catalyst components obtained using s
5072005 Process for the preparation of methyl 4-oxobutyrate and its methanol addition products December 10, 1991
Methyl 4-oxobutyrate and its methanol addition products, methyl 4,4-dimethoxybutyrate and gamma-methoxy-gamma-butyrolactone, which are useful as intermediates in the preparation of such industrially important compounds as gamma-butyrolactone, 1,4-butanediol and glutamic acid, are pro
5004568 Carbonylation of allylic ethers to esters April 2, 1991
A method is disclosed for the production of esters by reaction of an allylic ether with carbon monoxide in the presence of a catalytically effective amount of a Group VIII noble metal catalyst and a Group IB metal halide to obtain esters. The Group IB metal halide is present in an amount
4981927 Chromium catalyst compositions and polymerization utilizing same January 1, 1991
Improved mixed chromium catalysts useful in particle form polymerizations to produce readily processable high density polyolefin resins which also have high resistance to environmental stress cracking are provided. First and second chromium-containing catalyst components obtained using s
4980501 Production of secondary-butyl fluoroester and secondary-butyl alcohol obtained therefrom December 25, 1990
A process for the production of secondary-butyl perfluoroester is provided by reacting ethylene with a perfluorocarboxylic acid in the presence of oxygen.
4968817 Manufacture of gamma-crotonolactone by carbonylation of glycidol November 6, 1990
A process for preparing a substituted or unsubstituted gamma-crotonolactone is provided which comprises reacting a substituted or unsubstituted glycidol of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and are H, alkyl of from 1 to
4917849 Process for preparing ionomers April 17, 1990
A process for preparing ionomers is disclosed. In this process a vinyl acetate polymer is contacted with a hydroxide of an alkali metal or an alkaline earth metal. The in situ formed acetate of an alkali metal or an alkaline earth metal of this reaction is in turn reacted with a polymer
4888443 Process for the production of pimelic acid December 19, 1989
A process for the production of pimelic acid comprising reacting .epsilon.-caprolactone with carbon monoxide and water in the presence of a carbonylation catalyst, such as a Group VIII metal and hydrogen halide.
4876315 Process for vulcanizing saturated elastomers with halogen cure sites October 24, 1989
A composition of matter is disclosed comprising a saturated elastomer having an active halogen-containing cure site, sulfur and a quaternary ammonium salt of a mineral acid. The invention also provides a process for vulcanizing the above composition.
4871516 Apparatus and method for conducting chemical reactions October 3, 1989
An apparatus for conducting sequential chemical reactions between two gaseous reactants and a liquid reaction medium wherein contact between the two gaseous reactants are to be avoided is disclosed. The apparatus comprises a first reaction zone provided with means for contacting a first
4866188 Synthesis of cyclic ethers September 12, 1989
A process is disclosed for preparing a cyclic ether which comprises cyclodehydrating a polyhydroxy compound of the general formulain which R.sup.1 and R.sup.3, each of which is the same or different, is hydrogen or a lower aliphatic, cycloaliphatic or aryl group and R.sup.2 is a divalent
4866111 Coating composition September 12, 1989
A coating composition comprising nitrocellulose; a copolymer of ethylene and an ethylenically unsaturated ester of a saturated fatty acid, said copolymer comprising between about 40% and about 90% by weight of said ester, said copolymer characterized by a kinematic viscosity at 140.d
4840900 Continuous process for the preparation of immobilized glucoamylase June 20, 1989
A continuous process for the preparation of immobilized glucoamylase useful for the long term continuous direct hydrolysis of starch to fermentable glucose at temperatures of 45.degree. or higher is carried out by continuously depositing and stabilizing glucoamylase on a porous, part
4831183 Conjugated alkadiene telomerization to organooxyalkadienes May 16, 1989
A process for the telomerization of a conjugated alkadiene with an organic hydroxy compound to produce an organo-oxyalkadiene is disclosed. A palladium catalyst having an ionic ligand is employed in a substantially oxygen-free environment in the presence of an aprotic polar solvent so
4824990 Copolyester plasticizers for polyvinyl chloride April 25, 1989
Copolyester plasticizers useful for the formulation of PVC refrigerator gaskets which exhibit improved resistance to migration and marring and improved processing characteristics are provided. The copolyesters are obtained by reacting an acid component consisting of a mixture of a be
4820803 Process for recovering ethylene-vinyl acetate copolymers from an aqueous dispersion April 11, 1989
The presence of a water-soluble substantially neutral salt significantly improves the recovery filtration of dispersions of ethylene-vinyl acetate polymers of 35 to 85 percent vinyl acetate content.
4808669 Sulfur vulcanization system for saturated elastomers having active halogen-containing cure sites February 28, 1989
A composition of matter is disclosed comprising a saturated elastomer having an active halogen-containing cure site, sulfur and a quaternary ammonium salt of a mineral acid. The invention also provides a process for vulcanizing the above composition.
4806584 Phase transfer compounds as accelerators of soap/sulfur vulcanization February 21, 1989
A composition of matter is disclosed comprising (1) a saturated elastomer having an active halogen-containing cure site, (2) a soap/sulfur cure system, and (3) a phase transfer compound. The phase transfer catalyst comprises a quaternary ammonium or phosphonium salt of a mineral acid or
4801743 Process for preparing carboxylic acids January 31, 1989
Allyl alcohol is reacted with carbon monoxide in the presence of a catalytically effective amount of a heterogeneous catalyst composition comprising zero valent palladium and a catalyst promoting amount of hydrogen halide to provide a mixture of products predominantly made up of carb
4788325 Conversion of an allylic ether to its corresponding carbonyl compound November 29, 1988
A process for making a carbonyl-containing compound is disclosed. In this process an allylic ether is contacted with water in the presence of a cobalt-containing material under an atmosphere of carbon monoxide gas.
4781807 Efficient cis-to-trans isomerization of 1,4-dihalobutene-2 November 1, 1988
This invention relates to an efficient cis-to-trans isomerization of 1,4-dihalobutene-2 by means of a thiol or hydrogen bromide or hydrogen chloride catalyzed reaction.
4775745 Diazonium compounds useful as components for nucleic acid probes October 4, 1988
This invention relates to a diazonium compound of the formula: ##STR1## wherein Z is selected from the group consisting of biotin, an antigen, an antibody, a photoreactive group, a fluorescent group and heavy metal-containing compounds;X is an alkylene group containing up to 18 carbo
4770902 Method for covering an electrical conducting means September 13, 1988
A method for covering electrical conducting means is disclosed. In this method an ethylene polymer composition comprising a linear ethylene polymer having a density of at least 0.94 and a crosslinking effective amount of an acetylenic diperoxide compound having a one hour half-life d
4769507 Process for making higher hydrocarbons from methane September 6, 1988
A process for making hydrocarbons of at least two carbon atoms from methane is disclosed. In this process methane and a source of oxygen are introduced into a molten salt, maintained at a temperature in the range of between about 660.degree. C. and about 800.degree. C., comprising at lea
4767574 Carbonylation of allylic ethers to esters August 30, 1988
A method is disclosed for the production of esters by reaction of an allylic ether with carbon monoxide in the presence of a catalytically effective amount of a Group VIII noble metal catalyst and a halide compound to obtain esters. The halide compound is present in an amount suffici
4762724 Compositions and process for alfalfa drying August 9, 1988
Aqueous compositions suitable for the treatment of alfalfa are provided herein. The aqueous compositions contain a hydrocarbon, a lower alkyl ester of a fatty acid and/or alkali metal carbonate. A process for applying said aqueous compositions to the alfalfa at the time of cutting to
4759709 Wax compositions July 26, 1988
Improved wax compositions suitable for the preparation of candles, as the sole fuel component or as an overdip applied to a paraffin or paraffin/fatty acid candle, are provided. The compositions of this invention are a blend of a paraffin, a C.sub.16 or C.sub.18 saturated fatty acid
4752866 Ozonator power supply employing a current source inverter June 21, 1988
A versatile current source inverter power supply for an ozonator in which a gating control circuit controls the gating of a thyristor bridge inverter power supply in a manner in which the output current to the ozonator is controlled and regulated. The current source inverter power supply
4743401 Conversion of an allylic ether to its corresponding acetal May 10, 1988
A process for converting an allylic ether to its corresponding acetal is disclosed. In this process an allylic ether is contacted with an organic hydroxy compound and a catalytically effective amount of a cobalt compound to produce the corresponding acetal.
4731494 Process for making methyl iodide from methane March 15, 1988
A process for making methyl iodide is disclosed. In this process methane, and a source of oxygen are introduced into a molten salt, maintained at a temperature of at least about 500.degree. C., said molten salt comprising an iodide of a metal selected from the group consisting of alkali
4724275 Crystalline aluminosilicates and their use in the conversion of methanol to low molecular weight February 9, 1988
Crystalline Group VIII metal aluminosilicate compositions which are prepared by exchanging or impregnating a Group VIII metal onto an aluminosilicate. Conversion of methanol in the presence of a hydrogen cofeed to low molecular hydrocarbons employing these aluminosilicates as catalys
4721820 Process for the isomerization of allylic ethers January 26, 1988
A process for isomerizing allylic ethers is disclosed. In this process a compound having the structural formulawhere R is hydrocarbyl; and R.sup.1 is an organo group is contacted with a hydroxy-containing compound and a catalytically effective amount of a catalyst selected from the group
4716146 4-alkylphenyl-2-alkoxyethyl ethers and fragrance compositions containing same December 29, 1987
This invention relates to compounds of the general structure ##STR1## wherein R and R.sup.1 are lower alkyl having from 1 to 2 carbon atoms useful as fragrance additives and to the fragrance compositions containing the same.
4715866 Derivatives of polyether glycol esters of polycarboxylic acids as rheological additives for coal December 29, 1987
Coal-water slurries containing a rheological additive are disclosed. The rheological additives employed for the preparation of the present coal-water slurries are ester products obtained from the reaction of a polycarboxylic organic acid with two or more hydroxylic compounds. Salts o
4714496 Wax compositions December 22, 1987
Improved wax compositions suitable for the preparation of candles, as the sole fuel component or as an overdip applied to a paraffin or paraffin/fatty acid candle, are provided. The compositions of this invention are a blend of a paraffin, a C.sub.16 or C.sub.18 saturated fatty acid
4713479 Synthesis of high-purity dialkyl 2-vinylcyclopropane-1,1-dicarboxylate December 15, 1987
This invention relates to a two-step synthesis of high purity dialkyl 2-vinyl-cyclopropane-1,1-dicarboxylate in which a mixture of trans- and cis-1,4-dihalobutene-2 is first isomerized to essentially trans-1,4-dihalobutene-2 followed immediately by cyclocondensing the resultant trans
4713478 Process for the preparation of dialkyl 2-vinylcyclopropane-1,1-dicarboxylates December 15, 1987
This invention relates to the preparation of dialkyl-2-vinylcyclopropane-1,1-dicarboxylates involving the addition of an alcoholic metallic alkoxide to an organic solution of a 1,4-dihalobutene-2 and a malonic ester.
4713220 Ozonator power supply December 15, 1987
A versatile pulsed voltage resonant inverter power supply for an ozonator which results in the efficient operation thereof. A resonant inverter ozonator power supply comprises a DC power source and a DC/AC thyristor inverter coupled at its outputs to the primary winding of a high voltage
4709058 Process for the production of macrocyclic esters by the depolymerization of polyesters November 24, 1987
The catalytic thermal depolymerization of polyesters to produce macrocyclic esters suitable for fragrance applications is carried out using an olefin polymer. High yields of the corresponding macrocyclic ester are produced at high rates while substantially eliminating reactor fouling and
4707500 Synthetic crystalline ferroborosilicate compositions, the preparation thereof and their use in t November 17, 1987
Crystalline ferroborosilicate compositions are prepared from a silica containing mixture by digesting a reaction mixture comprising a tetraalkylammonium compound, a sodium hydroxide, a boron compound, an oxide of silicon, an iron ion source, an optional chelating agent and water to p
4698383 Liquid copolyester plasticizers derived from 1,4-butanediol and a dicarboxylic acid mixture October 6, 1987
Liquid copolyesters useful as plasticizers for vinyl resins are provided. The copolyesters are obtained by the esterification of specific aliphatic dicarboxylic acid ester mixtures with 1,4-butanediol and an aliphatic saturated monofunctional alcohol. The copolyesters have acceptably low
4689429 Liquid copolyester plasticizers derived from 1,4-butanediol and a dicarboxylic acid mixture August 25, 1987
Liquid copolyesters useful as plasticizers for vinyl resins are provided. The copolyesters are obtained by the esterification of specific aliphatic dicarboxylic acid ester mixtures with 1,4-butanediol and an aliphatic saturated monofunctional alcohol. The copolyesters have acceptably low
4689370 Halogenated ethylene-vinyl acetate-isobutylene terpolymers August 25, 1987
A halogenated ethylene-vinyl acetate-isobutene terpolymer is provided that has improved thermal stability.
4686264 Partially hydrolyzed ethylene-vinyl acetate (EVA) elastomers vulcanizable with sulfur August 11, 1987
Sulfur vulcanizable partially hydrolyzed ethylene-vinyl acetate terpolymers and processes for producing these products are disclosed.
4682947 Decorative candles July 28, 1987
Pillar candles which upon burning develop a decorative, aesthetically pleasing, free-standing shell having a filigree or lace-like pattern are provided. The candles consist of a fatty acid fuel composition, predominantly stearic acid and palmitic acid, and a 27-45 ply flat cotton wic
4682266 Ozonator power supply employing a current source inverter July 21, 1987
A solid state thyristor bridge inverter power supply for an ozonator in which the width and the amplitude of the ozonator current can be controlled and the ozonator voltage can be selectively reset. The power supply circuit includes a diode bridge rectifier for converting a commercia
4681924 Catalyst systems for polymerizations at high temperatures July 21, 1987
Copolymerization of ethylene and a C.sub.3 -C.sub.20 alpha-monoolefin at high temperature gives a low density polyethylene having a density of between 0.91 and 0.93 g/cc. The copolymerizations are accomplished with a catalyst made by co-comminuting an anhydrous magnesium halide, an a
4681709 Alkyl 9-alkoxy-7-nonenoates July 21, 1987
A new class of compounds, the alkyl 9-alkoxy-7-nonenoates, is disclosed. These compounds are important intermediates in the synthesis of sebacic acid.
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