Patents Examined by Dolph H. Torrence
  • Patent number: 4613685
    Abstract: The present invention relates to diisocyanates having an isocyanate content of from about 20 to 50% by weight, optionally in the form of isomeric mixtures, characterized in that, in addition to containing a sterically unhindered isocyanate group attached to a primary aliphatic carbon atom, they contain a sterically hindered isocyanate group attached to a tertiary carbon atom which forms part of a cycloaliphatic ring system.The invention also relates to the use of the new diisocyanates, optionally blocked with blocking agents for isocyanate groups, as isocyanate component for the preparation of polyurethanes.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: September 23, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Klein, Dieter Arlt
  • Patent number: 4612329
    Abstract: Novel alpha-aminoalkyl-alpha-alkylphenylacetonitrile derivatives useful for treatment of cartino vaso diseases, a peripheral circulatory insufficiency and cerebral circulation failure are disclosed.
    Type: Grant
    Filed: October 11, 1985
    Date of Patent: September 16, 1986
    Assignee: Hokuriku Pharmaceutical Co., Ltd.
    Inventors: Yasuo Itoh, Hideo Kato, Eiichi Koshinaka, Nobuo Ogawa, Sakae Kurata, Hiroyuki Nishino, Toshihiko Yoshida
  • Patent number: 4612313
    Abstract: The present invention provides phenylacetonitrile derivatives of the general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5, which can be the same or different, are hydrogen or haolgen atoms or alkyl, alkoxy, nitro, amino or acylamino radicals and two adjacent substituents can together also form a methylenedioxy or ethylenedioxy radical, A is a radical of the general formula: ##STR2## in which R.sub.6 is a straight-chained, cyclic or branched, saturated or unsaturated alkyl radical containing 2 to 12 carbon atoms, R.sub.
    Type: Grant
    Filed: September 10, 1985
    Date of Patent: September 16, 1986
    Assignee: Boehringer Mannheim GmbH
    Inventors: Herbert Leinert, Wolfgang Kampe, Klaus Strein, Bernd Muller-Beckmann, Wolfgang Bartsch
  • Patent number: 4612379
    Abstract: A process for producing 1,3-dioxin-4-one derivatives having a lower alkyl group at 2-position and useful as a starting raw material for prostaglandins, with a high yield is provided, which process comprises reacting formyl Meldrum's acid with a lower aliphatic carbonyl compound of 2 to 4 carbon atoms in a solvent containing the carbonyl compound at 100.degree. to 120.degree. C., while portionwise adding the acid into the solvent, the total quantity of the acid added being 0.2 mol or less per liter of the solvent.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: September 16, 1986
    Assignee: Chisso Corporation
    Inventors: Chikara Kaneko, Masayuki Sato, Hiromichi Ogasawara
  • Patent number: 4611078
    Abstract: This application discloses certain substituted phenylacetonitriles of the formula: ##STR1## in which the dotted line represents optional unsaturation, and R.sub.4 is hydrogen or alkyl;R.sub.5 and R.sub.6, one of which may be hydrogen, are ortho or para substituents, independently selected from the group consisting of hydroxyl, alkyl, alkoxy, aralkoxy, alkanoyloxy, alkylmercapto, halo or trifluoromethyl;R.sub.7 is hydrogen or alkyl; andn is one of the integers 0, 1, 2, 3 or 4;which are useful in the production of antidepressant agents.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: September 9, 1986
    Assignee: American Home Products Corporation
    Inventors: G. E. Morris Husbands, John P. Yardley, Eric A. Muth
  • Patent number: 4611076
    Abstract: Chiral aromatic cyanohydrins are prepared by treating an aromatic aldehyde with cyanide ions in the presence of an inert, aprotic solvent and a chiral cyclo(phenylalanyl-histidine) and an alcohol. The technique is especially useful for reducing the induction period when starting-up the process, increase the rate of reaction and to produce a product of increased enantiomeric selectivity.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: September 9, 1986
    Assignee: Shell Oil Company
    Inventors: Walter Dong, Peter S. Friend
  • Patent number: 4611075
    Abstract: Novel 4-(.alpha.,.alpha.-dihydrocarbyl-.alpha.-cyano-methyl)-2,6-mono or dihydrocarbyl substituted phenols are prepared by reacting a 2,6-mono or dihydrocarbyl substituted phenol with a ketone and an alkali metal cyanide or an alkaline earth metal cyanide in an inert reaction solvent.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: September 9, 1986
    Assignee: Ethyl Corporation
    Inventor: Charles R. Everly
  • Patent number: 4611010
    Abstract: Halovinylbenzyl esters of the formula I ##STR1## where R.sup.1 is ##STR2## R.sup.2 is H, CN, lower alkyl, lower alkenyl, lower alkynyl, lower haloalkyl or lower haloalkenyl, R.sup.3 is H, halogen or lower alkyl, R.sup.4 is H, lower alkyl, lower alkoxy or lower alkoxymethyl, R.sup.5 is lower alkyl, lower hal lk(en)yl or lower haloalkynyl, R.sup.6 and R.sup.7 are each lower alkyl or halogen, A is halogen, lower alkyl, lower alkoxy, lower haloalkyl, lower haloalkoxy, CN or NO.sub.2, m is 0 to 4, n is 1 to 3, B is lower alkyl, lower alkenyl, lower alkynyl or cycloalkyl, and X is H, halogen, lower haloalkyl, lower thioalkyl, lower alkoxy or lower alkyl, and halogen can be fluorine, chlorine or bromine and, in the case of R.sup.2, may furthermore be iodine, a process for their manufacture, and their use as pesticides.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: September 9, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd-Ulrich Schwarz, Hans Theobald, Heinrich Adolphi
  • Patent number: 4611004
    Abstract: 3-Phenoxybenzyl-(2-phenyl-2,2-alkylene-ethyl) ethers and -thioethers of the formula ##STR1## wherein A is oxygen or sulfur,R.sub.1 is hydrogen, methyl, cyano or ethinyl,R.sub.2 and R.sub.3 are hydrogen, halogen or C.sub.1 -C.sub.5 -alkyl,n is 2 to 4,X.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -haloalkyl, C.sub.1 -C.sub.5 -alkoxy or C.sub.1 -C.sub.5 -haloalkoxy,X.sub.2 is hydrogen, halogen or C.sub.1 -C.sub.5 -alkyl, or together with X.sub.1 in the adjacent position is methylenedioxy, andX.sub.3 and X.sub.4 are each hydrogen or halogen.A process for producing these compounds and their use for controlling pests are described.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: September 9, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Ackermann, Laurenz Gsell
  • Patent number: 4611083
    Abstract: The invention relates to urea group-containing polyisocyanate mixtures which are liquid at room temperature and have an isocyanate group content of from 15 to 30 weight percent and a diphenylmethane diisocyanate content of from 55 to 90 weight percent, obtained through the reaction of(A) polyoxyalkylene polyamines having a functionality of from 2 to 5 and an amine number from 20 to 250 with a polyisocyanate (B) selected from the group consisting of(B1) a mixture of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates having a diphenylmethane diisocyanate content of from 55 to 90 weight percent or(B2) at least one diphenylmethane diisocyanate isomer.The polyisocyanate mixtures claimed in the invention are used to prepare dense or cellular polyurethane and/or polyisocyanurate plastics, in particular, flexible polyurethane foams.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: September 9, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Ingolf Buethe, Matthias Marx, Willibald Schonleben
  • Patent number: 4611077
    Abstract: Enantiomeric selectivity is increased in chiral cyanohydrination of an aromatic aldehyde using a chiral cyclo(phenylalanylhistidine) catalyst by treating the (recycle) aldehyde to remove catalyst poisons or impurities which adversely effect enantiomeric selectivity.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: September 9, 1986
    Assignee: Shell Oil Company
    Inventors: Walter Dong, Donald W. Stoutamire
  • Patent number: 4608082
    Abstract: This invention relates to novel herbicidal cycloalkenyl acetamides. These acetamides are useful in the inhibition of undesired vegetation and exhibit excellent selectivity in crops of cultivated plants, particularly in crops of flooded rice.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: August 26, 1986
    Assignee: Union Carbide Corporation
    Inventors: Todd A. Craig, John J. Jachetta
  • Patent number: 4606861
    Abstract: Disclosed is a process for the preparation of anthraquinodimethane derivatives and anthrone derivatives useful as electron transporting molecules which comprises the condensation reaction of anthraquinones with active methylene compounds in the presence of a Lewis acid and a base.
    Type: Grant
    Filed: March 8, 1985
    Date of Patent: August 19, 1986
    Assignee: Xerox Corporation
    Inventors: Beng S. Ong, Barkev Keoshkerian
  • Patent number: 4605756
    Abstract: The invention relates to a process for the in situ production of dispersions or solutions of urea group-containing aromatic isocyanates by the low temperature reaction of aromatic diisocyanates and/or polyisocyanates (the NCO groups of which preferably exhibit different reactivities) with from 0.15 to 0.4 mols of water per NCO equivalent in relatively high molecular weight polyols and in the presence of catalysts accelerating the NCO/water reaction. Such catalysts are preferably selected from peralkylaminoalkyl ethers, peralkylamino-polyalkylene ethers and/or peralkyl-polyalkylene-polyamines. The present invention also relates to the resulting metastable solutions or dispersions and to the use thereof, optionally with the further addition of relatively high and low molecular weight compounds having hydroxyl, amino or hydrazide groups and with the optional addition of other polyisocyanates in polyurethane-forming ratios for the production of polyurethanes.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: August 12, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Grogler, Richard Kopp, Heinrich Hess
  • Patent number: 4605521
    Abstract: This invention relates to a process for the preparation of organic nitriles. More particularly, the invention relates to a process for the preparation of organic nitriles by reacting organic carboxylic acid primary amides with a dehydrating agent in the presence of a catalytic amount of a particular quaternary ammonium salt.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: August 12, 1986
    Assignee: Eastman Kodak Company
    Inventors: Robert J. I. Eubanks, James G. Pacifici
  • Patent number: 4604243
    Abstract: An olefin, especially an activated olefin, is arylated by reaction with an arylamine, such as an aniline, in an inert polar organic solvent and in the presence of an alkyl nitrite, a hydrogen halide, and a catalytic amount of a copper catalyst having the copper in an oxidation state below +2.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: August 5, 1986
    Assignee: Ethyl Corporation
    Inventor: Robert I. Davidson
  • Patent number: 4602851
    Abstract: Disubstituted ethanes having a formula ##STR1## wherein R is alkyl, X is selected from hydrogen, ##STR2## wherein each R.sub.1 is selected from H, alkyl, alkoxy, halo and cyano and each of Q.sub.1, Q.sub.2, Q.sub.3 and Q.sub.4 is independently selected from H and F are useful as components of liquid crystal materials for electro-optical displays and compounds useful in the production of such components.
    Type: Grant
    Filed: May 11, 1984
    Date of Patent: July 29, 1986
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: John A. Jenner, Ian C. Sage, Robert A. Smith
  • Patent number: 4602934
    Abstract: Novel compounds of the formula ##STR1## wherein D is hydrogen, halogen, (halo)alkyl or (halo)alkoxy; R is alkyl or is cycloalkyl optionally 1-substituted by alkyl or halogen and R.sup.1 is the hydrocarbyl residue of a saturated oxygen-heterocyclic alcohol, are useful as herbicides.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: July 29, 1986
    Assignee: Shell Oil Company
    Inventor: Kurt H. Pilgram
  • Patent number: 4602933
    Abstract: Novel compounds of the formula ##STR1## wherein D is hydrogen, halogen, (halo)alkyl or (halo)alkoxy; R is hydrogen, alkyl or alkoxy and R.sup.1 is the hydrocarbyl residue of a saturated oxygen-heterocyclic alcohol, are useful as herbicides.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: July 29, 1986
    Assignee: Shell Oil Company
    Inventor: Kurt H. Pilgram
  • Patent number: 4602038
    Abstract: Novel cyclopropane carboxylates in all isomeric forms of the formula ##STR1## wherein A is selected from the group consisting of --O--, --S--, ##STR2## and --SO.sub.2 --, R.sub.1 is selected from the group consisting of optionally unsaturated alkyl of 1 to 18 carbon atoms optionally containing at least one heteroatom in the carbon chain and optionally substituted with at least one halogen, aryl of 6 to 18 carbon atoms and aralkyl of 7 to 18 carbon atoms and R.sub.2 is selected from the group consisting of hydrogen, optionally unsaturated alkyl of 1 to 12 carbon atoms, optionally unsaturated cycloalkyl of 3 to 12 carbon atoms and residue of other alcohols used in pyrethrinoids having pesticidal activity for combatting insects, acariens of vegetables and warm-blooded animals and nematodes and novel intermediates.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: July 22, 1986
    Assignee: Roussel Uclaf
    Inventors: Jean Tessier, Jean-Pierre Demoute, Joseph Cadiergue