Hydroxy, Bonded Directly To Carbon, Or Ether Containing (h Of -oh May Be Replaced By A Substituted Or Unsubstituted Ammonium Ion Or A Group Ia Or Iia Light Metal) Patents (Class 564/503)
Abstract: The alkylene oxide adduct of bis(aminoethyl)ether may be reacted with formaldehyde in the presence of hydrogen and a hydrogenation-dehydrogenation catalyst to produce new compounds of the formula ##STR1## where R is hydrogen or lower alkyl and R" is methyl or ##STR2## These compounds show unexpectedly high efficiency as polyurethane catalysts. Fewer equivalents of this amine are required to produce foams having the same reaction profile as foams made with piror art amine catalysts.
Abstract: New ditertiary aminoalcohols are useful as catalysts in the preparation of polyurethane foams. The new catalysts are particularly stable in the presence of polyols and other components often used in the conjunction with such polyols.
Type:
Grant
Filed:
March 9, 1981
Date of Patent:
February 7, 1984
Assignee:
Abbott Laboratories
Inventors:
Daniel S. Raden, Russell O. Carlsen, Kenneth W. Narducy
Abstract: A diluent and a method of assaying are described, by which the ionic strength range of the liquid that is to be assayed potentiometrically, is compressed. The diluent comprises a predetermined concentration of (a) a protonated water-soluble organic amine having (i) a pKa greater than or equal to 9.3, and (ii) a hydroxyalkyl of 1 to 5 carbon atoms, bonded to the nitrogen of the amine, wherein the oxygen-to-carbon bond of the hydroxy is no more than two bonds removed from the nitrogen, and (b) an acid anion.
Abstract: A novel class of severely sterically hindered tertiary amino compounds having a pK.sub.a value at 20.degree. C. greater than 8.6, preferably ranging from 9.3 to about 10.6, and a cumulative -E.sub.s value of at least 1.9 are found to be useful in selective removal of H.sub.2 S from a normally gaseous mixture containing H.sub.2 S and CO.sub.2.
Abstract: A method and product for use in controlling the deposition of silica-containing scales and their adhesion to the walls of piping and other plant components. The product is an amine to which is attached at least a pair of terminal groups. Each group is selected from the family of compounds consisting of furfuryl and a saturated or unsaturated hydrocarbon radical substituted with one or more members selected from hydroxy and carboxy, or a hydrohalide thereof. The method includes injecting the additive into saline brine or brackish water containing silica which may tend to precipitate as a scale.
Abstract: Crude aminomethanols are converted to salt form by the addition of a strong acid and subsequently distilled under vacuum. The resulting purified aminomethanol is essentially free of unreacted aldehydes and other volatile impurities.
Abstract: Novel methods are provided for synthesizing 2-amino-2-tetritol, by positive halogen addition to protected 1,4-dioxybutene-2 in the presence of a nitrile, resulting in addition of a halo functionality and the nitrile functionality across the double bond. Upon hydrolysis, the desired erythro-product can be obtained in stereochemically good yield.
Type:
Grant
Filed:
August 3, 1981
Date of Patent:
June 21, 1983
Assignee:
The Regents of the University of California
Abstract: A process for manufacturing 1,2-dibromo-3-chloropropane is disclosed. The process comprises the steps of reacting bromine and allyl chloride at a temperature of from 5.degree. to 85.degree. C. and maintaining the reaction mixture between 60.degree. to 90.degree. C. for a sufficient length of time so as to permit the reaction between the bromine and allyl chloride to go to completion. In addition, the process also includes the step of adding an agent so as to stabilize and purify the product so formed.
Abstract: A process for the preparation of a hydrogenation catalyst which contains the oxides of the metals nickel, copper, molybdenum and aluminum and/or iron, and may or may not contain manganese oxide, by precipitating a solution of salts of the metals with an alkali metal carbonate at from 35.degree. to 95.degree. C. and a pH of from 5 to 9 and heating the precipitate at from 350.degree. to 700.degree. C., the amount of the metal salts being selected so that the catalyst contains from 5 to 70 percent by weight of aluminum oxide and/or iron oxide, the remainder being principally nickel oxide and, based on nickel oxide, from 20 to 40 percent by weight of copper oxide, from 0.5 to 6 percent by weight of molybdenum oxide and from 0 to 10 percent by weight of manganese oxide.
Type:
Grant
Filed:
January 28, 1981
Date of Patent:
May 17, 1983
Assignee:
BASF Aktiengesellschaft
Inventors:
Karl Baer, Wolfgang Reiss, Wolfgang Schroeder, Dieter Voges
Abstract: This invention provides for the separation of an amine composition undergoing processing at high temperatures and pressures which amine composition contains volatile components and less volatile components where the volatile components are desirable for further processing and/or utilization and the less volatile components are less desirable for further processing and/or utilization. The separation serves to divide the amine composition into two streams, one which is enriched in the volatile components and the other which is enriched in the less volatile components.
Type:
Grant
Filed:
September 30, 1981
Date of Patent:
April 26, 1983
Assignee:
Union Carbide Corporation
Inventors:
Charles A. Gibson, Moinuddin Ahmed, Michael Habenschuss
Abstract: Amino catalyst mixtures containing from 10 to 95 percent by weight of 2-diisopropylamino ethanol and from 5 to 90 percent by weight of an amine or mixture of amines selected from the group described herein has been found to be a replacement for N-ethylmorpholine in the production of polyurethane foams.
Abstract: Color-stable alkylaminoalkanol is prepared by adding, prior to stripping-off excess reactant, an alkali metal borohydride to the reaction product of alkylene oxide and an excess of primary or secondary amine and thereafter distilling the reaction mass to recover residual and reacted (borates) alkali metal borohydride and reduced color-forming bodies as bottoms and alkylaminoalkanol as distillate. If water is present in the reaction between the alkylene oxide and primary or secondary amine, the reaction mass is distilled after recovery of excess amine to recover an azeotrope of the product which is recycled to the reactor.
Abstract: The present invention provides novel substituted heptadeca-5,9- and 5,10-dienoic acid and similar fatty acid compounds which are derivatives of certain prostaglandins and are potent thromboxane A.sub.2 inhibitors. By virtue of this pharmacological property, they represent useful pharmacological agents for a wide variety of purposes.
Abstract: Novel substituted 11-aminoundecanols of the formula ##STR1## and a process for their preparation are described; in the formula, R.sub.1 and R.sub.3 independently of one another are hydrogen or alkyl having 1-8 C atoms and R.sub.2 and R.sub.4 independently of one another are alkyl having 1-8 C atoms, or R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 together with the bonding C atom form a cycloaliphatic ring having 4-8 C atoms, and R.sub.5 and R.sub.6 independently of one another are hydrogen or alkyl having 1-4 C atoms. The compounds of the formula I are valuable active compounds for combating plant pests.
Abstract: There are disclosed the chemical compound N,N-dimethyl-N'-isobutyl-N'-.beta.-hydroxyethyl-propylenediamine, a process for the preparation thereof and its use.
Abstract: Decaprenylamine derivatives and their acid addition salts are described which are useful for the control of virus infections of vertebrate animals.
Abstract: Compounds of formula (I) ##STR1## wherein: R.sup.1 is C.sub.1-6 alkyl or C.sub.5-7 cycloalkyl;R.sup.2 is hydrogen or C.sub.1-6 alkyl; orNR.sup.1 R.sup.2 represents a heterocyclic ring having 5 to 7 ring atoms and only one hetero-atom; andR.sup.3 is C.sub.1-4 alkyl, one carbon atom of which is di- or tri-halogenatedor salts thereof are useful in promoting growth of ruminants. Processes for their production, veterinary formulations and treatments are described.
Abstract: Compounds of the formula (I): ##STR1## wherein n is 3 to 5;Y is --CH.sub.2 --CH.sub.2, --CH.dbd.CH-- or C.tbd.C--;L is O or S;R.sub.1 is C.sub.1-4 alkyl;R.sub.2 is hydrogen, C.sub.1-4 alkyl or phenyl;R.sub.3 is hydroxy or protected hydroxy;R.sub.4 is hydrogen, C.sub.1-9 alkyl, C.sub.3-8 cycloalkyl, phenyl, naphthyl, any of which phenyl moieties or naphthyl moieties may be substituted by one or more halogen, trifluoromethyl, C.sub.1-6 alkyl, hydroxy, C.sub.1-6 alkoxy, phenyl C.sub.1-6 alkoxy or nitro groups; orR.sub.2 and R.sub.4 taken with the carbon atom to which they are joined represent a C.sub.5-8 cycloalkyl group; and R.sub.5 is C.sub.1-6 alkyl, having similar activity to natural prostaglandins, a process for their preparation, intermediates useful in that process and pharmaceutical compositions containing them.
Abstract: Nitrogen-containing compounds are provided which may be represented structurally as: ##STR1## wherein R.sub.1 and R.sub.2 are each independently selected from hydrogen and lower alkyl and R.sub.3 is selected from hydrogen, lower alkyl, aryl and ##STR2## wherein R.sub.4 is selected from H and lower alkyl.
Abstract: This invention relates to compounds of the formula: ##STR1## including derivatives thereof. The subject compounds have been found to be particularly useful as cationic emulsifiers and exhibit many desirable properties in connection with personal care compositions.
Abstract: A method for the formation of monoalkyleneglycols, monoalkanolamines and alkylenediamines, comprising the steps of: (a) reacting ammonia or ammonium carbonate with an alkylenecarbonate to form a carbamate, (b) heating the carbamate to form a monoalkyleneglycol, an alkyleneurea and a 2-oxazolidinone, (c) further reacting the alkyleneurea and the 2-oxazolidinone with ammonium hydroxide to form ammonia or ammonium carbonate, a monoalkanolamine, and an alkylenediamine, (d) separating the ammonia or ammonium carbonate, the monoalkyleneglycol, the alkylenediamine, and the monoalkanolamine, and (e) recycling the ammonia or ammonium carbonate to reaction step (a).
Type:
Grant
Filed:
December 26, 1979
Date of Patent:
June 9, 1981
Assignee:
The Dow Chemical Company
Inventors:
Frank T. Cook, Daniel W. Baugh, Jr., Robert V. Chambers, Jr.
Abstract: An improved process is disclosed for resolving DL-mandelic acid using optically active 2-amino-1-butanol. The known process comprises: (a) reacting DL-mandelic acid with optically active 2-amino-1-butanol in an alcohol or alcohol mixture to form an optically active mandelate salt; (b) cooling and recovering the salt; (c) mixing the salt with water and distilling off any residual alcohol; (d) acidifying the mixture with a mineral acid; and (e) cooling and recovering the optically active mandelic acid.The improvement comprises: recycling the mother liquor of step (b) into step (a); heating the mother liquor with an alkalizing agent to obtain a racemic solution; neutralizing the racemic solution to precipitate an alkali or alkaline earth metal salt; separating the metal salt; recycling the mother liquor from the separating step into step (a); and recycling the mother liquor from step (e) into step (c).