Patents Examined by V. Garner
-
Patent number: 5241107Abstract: The present invention relates to compounds of formula (I)ArCH.sub.2 R.sup.1 (I)or a monomethyl or monoethyl ether thereof (the compound of formula (I) including these ethers may contain no more than 30 carbon atoms in total); ethers, esters, thereof; acid addition salts thereof; wherein Ar is a C.sub.15-18 fused tetracarbocyclic ring system containing 3 or 4 aromatic rings or a C.sub.17-22 fused pentacarbocyclic ring system containing 4, or 5 aromatic rings, or a substituted derivative thereof; the ring system Ar should be planar or deviate only slightly from planarity. Thus, the ring system contains a maximum of two non-aromatic carbon atoms which may be in the same ring, in which case they are adjacent, or in different rings;Ar is not perylene, fluoranthene, chrysene, pyrene, or triphenylene;R.sup.1 contains not more than eight carbon atoms and is a group ##STR1## wherein m is 0 or 1; R.sup.5 is hydrogen;R.sup.6 and R.sup.7 are the same or different and each is hydrogen or C.sub.Type: GrantFiled: November 14, 1985Date of Patent: August 31, 1993Assignee: Burroughs Wellcome Co.Inventor: Kenneth W. Bair
-
Patent number: 5198578Abstract: The processes for oxidation of propylene to acrolein and the oxidation of propylene to acrylic acid in two stages with acrolein as an intermediate are improved by use of essentially inert essentially anhydrous diluent gases to replace steam in the reaction streams. In particular, the use of essentially inert essentially anhydrous diluents which raise the composite heat capacity of the diluent gaas mixture to at least about 6.5 calories/(gram-mole) (.degree.C.) will improve selectivity to desired products and will reduce both the waste water load on the system and by-product formation.Type: GrantFiled: June 25, 1990Date of Patent: March 30, 1993Assignees: Union Carbide Chemicals, Plastics Technology CorporationInventors: William G. Etzkorn, Gordon G. Harkreader
-
Patent number: 5189207Abstract: A process for the production of solid or paste-form products by fast reactions is carried out stoichiometrically wherein a gaseous medium is introduced into each of the reactants to be reacted with one another, the reactant streams formed are combined and are subsequently forced through a spray unit in a weight ratio of gaseous medium to product stream of from 0.04 to 0.3 (kg/kg) and at a rate of 0.1 to 15 m/second, as calculated from the gas-free reactant streams and based on the free cross-section of the spray unit. The products obtained are free from readily volatile constituents.Type: GrantFiled: December 7, 1988Date of Patent: February 23, 1993Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Gerhard Blasey, Christoph Breucker, Bernhard Gutsche, Lutz Jeromin, Guenter Panthel, Eberhard Peukert, Wolfgang Schmidt
-
Patent number: 5187307Abstract: In the catalyzed gas phase oxidative dehydrogenation of alkyl glycolate with an oxygen source in the presence of a metallic silver catalyst, the selectivity of from 500 to about 5000 ppm the reaction is increased at high conversion rates by the addition of methylene chloride to the reactants.Type: GrantFiled: October 23, 1990Date of Patent: February 16, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: George E. Heinsohn
-
Patent number: 5180847Abstract: A preferred process for producing 3-hydroxy-2,2,4-trimethylpentyl isobutyrate is described. The spent aqueous phase from an alkali metal hydroxide-catalyzed isobutyraldehyde condensation is concentrated in alkali metal isobutyrate salt, and the concentrated medium is introduced into a subsequent condensation to advantageously modify the isobutyraldehyde reaction. Increased conversions and productivities can thus be achieved. Preferred continuous processes, as well as preferred processes of controlled reaction duration and reactant/catalyst/salt ratios are also described. Further described is a preferred process for producing the diisobutyrate ester of 2,2,4-trimethyl-1,3-pentanediol, which in a preferred mode also achieves a desirable coproduction of the diol and its monoisobutyrate ester.Type: GrantFiled: February 15, 1991Date of Patent: January 19, 1993Assignee: BASF CorporationInventors: Laurance R. Thurman, James B. Harris
-
Patent number: 5175346Abstract: Optionally halogenated tertiary allyl esters are prepared by reaction of an alkali metal salt of a carboxylic acid with an optionally halogenated primary and/or tertiary allyl halide or mixture thereof in the presence of as catalyst a cuprous salt together with a quaternary ammonium salt or a phosphonium salt.Type: GrantFiled: April 26, 1991Date of Patent: December 29, 1992Assignee: Rhone-Poulenc SanteInventor: Michel Mulhauser
-
Patent number: 5175363Abstract: Disclosed is a method for reducing olefinic impurities in solutions of carboxylic acids and/or anhydrides. The invention is especially useful for removing substantially all, i.e., greater than 90 percent of trace amounts of olefinic impurities.Type: GrantFiled: January 28, 1991Date of Patent: December 29, 1992Assignee: Eastman Kodak CompanyInventors: Joseph R. Zoeller, Regina M. Moncier
-
Patent number: 5175361Abstract: A process for the preparation of copolymers which contain monoethylenically unsaturated monocarboxylic acids and dicarboxylic acids as copolymerized monomer units, which comprises copolymerizinga) 10 to 60% by weight, based on the sum of the monomers, of a monoethylenically unsaturated dicarboxylic acid of 4 to 6 carbon atoms, -or an alkali metal salt thereof or, an anhydride thereof,b) 90 to 40% by weight of a monoethylenically unsaturated monocarboxylic acid of 3 to 10 carbon atoms or an alkali metal salt thereof andc) 0 to 20% by weight of another monoethylenically unsaturated monomer, not having carboxyl groups and which is copolymerizable with a) and b);in an aqueous medium in the presence of from 0.5 to 5% by weight, based on monomers, of a water-soluble initiator.Type: GrantFiled: November 30, 1990Date of Patent: December 29, 1992Assignee: BASF AktiengesellschaftInventors: Walter Denzinger, Heinrich Hartmann, Wolfgang Trieselt, Albert Hettche, Rolf Schneider, Hans-Juergen Raubenheimer
-
Patent number: 5175360Abstract: This invention relates to a process for the preparation of an alkoxyalkanoic acid of the formulaRO(CH.sub.2 CHR'O).sub.n CH.sub.2 CO.sub.2wherein R is an alkyl group of from 1 to about 22 carbon atoms, R' is hydrogen or methyl or mixtures thereof (on the individual molecule) and n is an integer of from 1 to about 12 which comprises reacting the corresponding alkoxyalkanol with a solubilized stable free radical nitroxide having the formula: ##STR1## wherein (1) (a) each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is an alkyl, aryl or heteroatom substituted alkyl group having 1 to about 15 carbon atoms, and (b) R.sub.5 and R.sub.6 (i) each is an alkyl group having 1 to about 15 carbon atoms provided that when R.sub.1 -R.sub.6 are not all alkyl groups, or a substituted alkyl group having 1 to about 15 carbon atoms wherein the substituent is halogen, cyano, --CONH.sub.2, --OCOCH, OCOC.sub.2 H.sub.Type: GrantFiled: November 26, 1990Date of Patent: December 29, 1992Assignee: Shell Oil CompanyInventor: Herbert E. Fried
-
Patent number: 5166392Abstract: Fungicidal derivatives of carboxyclic anilides of the formula ##STR1## in which X represent optionally alkyl-substituted cycloalkyl or optionally alkyl-substituted cycloalkenyl,Hal represents halogen, andY.sup.1, Y.sup.2 and Y.sup.3 independently of one another represent hydrogen, halogen, optionally halogen-substituted alkyl, optionally halogen-substituted alkoxy or optionally halogen-substituted alkylthio, andZ represents the groups COOR.sup.2 or COR.sup.1, whereR.sup.1 and R.sup.2 are identical or different and represent optionally halogen-substituted alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl, polyalkoxyalkyl and optionally substituted cycloalkyl, optionally substituted phenyl, optionally substituted phenylalkyl or substituted phenoxyalkyl.Type: GrantFiled: August 15, 1990Date of Patent: November 24, 1992Assignee: Bayer AktiengesellschaftInventors: Bernd-Wieland Kruger, Klaus Sasse, Wilhelm Brandes
-
Patent number: 5166416Abstract: The invention relates to new propenone oxime ethers, a method of preparing them and pharmaceutical compositions containing them.Said new propenone oxime ethers have the formula ##STR1## in which--Ar and Ar' each independentlyl denotes a phenyl group non-substituted, mono or polysubstituted, a 9-anthryl group or a naphthyl group, a pyridyl, thienyl or furyl group;R.sub.1 R.sub.2 each independently denotes hydrogen, a C.sub.1 -C.sub.4 alkyl group or together with the N-atom to which they are bonded a 1-pyrrolidinyl, piperidino, morpholino or 1-piperazinyl group;M=H, Cl, Br or a C.sub.1 -C.sub.6 alkyl groupn=2 or 3.The invention also deals with the salts of compounds of formula (I). Said compounds have good activity in the anti platelet-clotting tests and are also antagonists of the 5HT.sub.2 receptors.Type: GrantFiled: December 1, 1989Date of Patent: November 24, 1992Assignee: Societe Anonyme: SanofiInventors: Christian Congy, Patrick Gueule, Bernard Labeeuw, Murielle Rinaldi
-
Patent number: 5155262Abstract: The processes for oxidation of isobutylene to methacrolein and the oxidation of isobutylene to methacrylic acid in two stages with methacrolein as an intermediate are improved by use of essentially inert essentially anhydrous diluent gases to replace steam in the reaction streams. In particular, the uses of essentially inert essentially anhydrous diluents which raise the composite heat capacity of the diluent gas mixture to at least about 6.5 calories/(gram-mole) (.degree.C.) will improve selectivity to desired products and will reduce both the waste water load on the system and by-product formation.Type: GrantFiled: October 23, 1991Date of Patent: October 13, 1992Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: William G. Etzkorn, Gordon G. Harkreader
-
Patent number: 5144061Abstract: The present invention relates to a method for producing optically active alcohol derivatives, which are useful as fungicides, herbicides or plant growth regulators, represented by the formula, ##STR1## by carrying out the asymmetric reduction of a ketone compound represented by the formula, ##STR2## with a boron hydride-reducing agent modified with an optically active amino alcohol represented by the formula, ##STR3## and also relates to the boron hydride type compound obtained by reacting the above optically active amino alcohol with a boron hydride compound and its production method.Type: GrantFiled: November 5, 1987Date of Patent: September 1, 1992Assignee: BASF AktiengesellschaftInventors: Wolfgang Hoelderich, Fritz Naeumann, Rolf Fischer