Patents Examined by Lewis Gotts
  • Patent number: 4182726
    Abstract: An aromatic carbonate having the formula: ##STR1## wherein R' is alkyl and R is alkyl, alkoxy, aryl, aryloxy or NO.sub.2, is prepared by reacting the related phenol or an acyl ester thereof with an alkyl, cyclic or aryl-alkyl carbonate in the presence of a catalyst such as AlCl.sub.3.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: January 8, 1980
    Assignee: Snamprogetti, S.p.A.
    Inventors: Gabriello Illuminati, Ugo Romano, Renato Tesei
  • Patent number: 4141968
    Abstract: Novel salts of 1,3-bis-(.beta.-ethylhexyl)-5-amino-5-methyl-hexahydropyrimidine (hexetidine) with substituted benzoic acids and processes of preparing these salts are described. These novel salts have useful bacteriostatic activity and show stability in storage. The invention accordingly comprises compositions containing the novel salts and having bacteriostatic activity.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: February 27, 1979
    Assignee: Doll GmbH
    Inventors: Wilhelm Kunz, Klaus Posselt, Manfred Lohner
  • Patent number: 4138423
    Abstract: Novel N-dithio carbamoyl oxime compounds have exceptional pesticidal activity.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: February 6, 1979
    Assignee: Union Carbide Corporation
    Inventor: Themistocles D. J. D'Silva
  • Patent number: 4137250
    Abstract: Novel compounds exhibiting liquid crystal properties have the formula ##STR1## wherein .phi. is a benzene ring containing hydrogen atoms or an inert substituent therefor at other than the para position, and R and R' are, independently in each case, a hydrocarbyl group containing from about 1 to about 20 carbon atoms, a nitrogen containing group, or a halogen. Novel liquid crystal compositions include at least one of these compounds, preferably present in a mixture of at least two homologous liquid crystal compounds in substantially eutectic proportions. These liquid crystal compounds and compositions have greater nematic stability than their corresponding disubstituted phenylbenzoate analogs. They may be used in liquid crystal displays, particularly field effect nematic liquid crystal displays.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: January 30, 1979
    Assignee: Motorola, Inc.
    Inventor: Reese M. Reynolds
  • Patent number: 4128586
    Abstract: A process for reducing aromatic sulfonyl halides with hydrogen sulfide. Hydrogen sulfide is contacted with sulfonyl halides preferably in the presence of a solvent and of a catalyst. The reaction forms thiols and proceeds in the range of between about 50.degree. and 300.degree. C. There is little formation of disulfide and no cleavage of the thiol group.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: December 5, 1978
    Assignee: Allied Chemical Corporation
    Inventor: Charles T. Ratcliffe
  • Patent number: 4127600
    Abstract: Certain novel carbamates and thiolcarbamates are broad spectrum herbicides, which can be applied to the locus of undesired vegetation either preemergence or postemergence. Typical representatives of this class of compounds are methyl N-(N-cyclohexylcarbamoyl-N',N'-dimethylamidino)-N-methylcarbamate and methyl N-[1-(3-cyclohexyl-1-methylureido)-1-dimethylaminomethylene]carbamate.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: November 28, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Julius J. Fuchs
  • Patent number: 4127601
    Abstract: This invention provides .alpha.-substituted-vinyl menthyl carbonate esters, and further provides menthol-release oligomeric and polymeric derivatives thereof corresponding to the formula: ##STR1## WHEREIN R is a member selected from the group consisting of aliphatic, alicyclic and aromatic hydrocarbon radicals containing between 1 and about 10 carbon atoms, and n is an integer varying between 2 and about 200.This invention further provides a smoking composition comprising an admixture of tobacco and a polymeric composition as described herein as a menthol-release agent.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: November 28, 1978
    Assignee: Philip Morris, Incorporated
    Inventors: Harvey J. Grubbs, Thomas V. Van Auken, William R. Johnson, Jr.
  • Patent number: 4126627
    Abstract: A process for preparing alkaline earth metal mercaptides in a two-step process, useful as synergists for organotin stabilizers in halogen containing resins such as polyvinyl chloride, comprising: (1) reacting a metallic oxide or hydroxide of the metal desired in the final mercaptide; a magnesium, aluminum or calcium alkoxide; and an alcohol to provide an alkoxide of the metal of the final mercaptide; and then (2) reacting the final alkoxide of (1) with a mercaptan to provide the desired metal mercaptide.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: November 21, 1978
    Assignee: Pennwalt Corporation
    Inventor: Gerald H. Reifenberg
  • Patent number: 4126696
    Abstract: New 4-alkylsulfonyloxyphenyl N-alkylthiolcarbamates of the formula ##STR1## wherein each of R.sub.1 and R.sub.2 is a lower alkyl having from 1 to 6 carbon atoms and X is hydrogen, chlorine or methyl. The compounds have excellent effect on the prevention of the soil born plant diseases.
    Type: Grant
    Filed: April 12, 1978
    Date of Patent: November 21, 1978
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Taizo Nakagawa, Toshiyuki Suzuki, Yutaka Watanabe, Kaoru Ohmori, Iwao Tejima, Osamu Yamada, Shuichi Ishida
  • Patent number: 4125562
    Abstract: A phenol is reacted with sulphur trioxide in the presence of liquid hydrogen fluoride to form a 4,4'-dihydroxydiphenylsulphone. A molar excess of hydrogen fluoride and stoichiometric proportions of sulphur trioxide and phenol or a slight excess of sulphur trioxide over phenol are preferred.
    Type: Grant
    Filed: February 14, 1978
    Date of Patent: November 14, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: John I. Darragh, John B. Rose
  • Patent number: 4125554
    Abstract: Iodinated thiolcarbonates and a method for using the same as radiographic contrast agents in connection with such X-ray techniques as myleography, lymphography, hysterosalpingography, bronchography and sialography. The general formula of such iodonated thiolcarbonate compounds may be characterized as ##STR1## wherein R represents an iodinated phenyl linked to the sulfur through a lower alkylene group consisting of a straight or branched chain having from 1 to 5 carbon atoms and R.sub.1 is a lower alkyl group consisting of a straight or branched chain having from 1 to 10 carbon atoms.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: November 14, 1978
    Assignee: Alcon Laboratories, Inc.
    Inventor: Barry N. Newton
  • Patent number: 4124630
    Abstract: Chloromethyl thiocyanate is prepared by reacting bromochloromethane with an alkali or alkaline earth thiocyanate or with ammonium thiocyanate in the presence of water and an onium salt as a catalyst.
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: November 7, 1978
    Inventors: Heribert Offermanns, Werner Schwarze, Rudolf Vanheertum
  • Patent number: 4124646
    Abstract: Industrially useful alkylphenyl sulfides are produced in high yield from phenyl mercaptan as a raw material by reaction of the phenyl mercaptan with an alkyl alcohol or dialkyl ether, or alkyl mercaptan or dialkyl sulfide having 1 to 4 carbon atoms as a novel alkylating agent at an elevated temperature, for example, 150.degree. to 600.degree. C, in a gaseous phase.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: November 7, 1978
    Assignee: Seitetsu Kagaku Co., Ltd.
    Inventors: Masao Kawamura, Masakazu Hatta, Nobuhiro Koune, Nobuyuki Kitagishi
  • Patent number: 4123446
    Abstract: A process is described for preparing metal alkyl carbonates, useful as carboxylating agents, which comprises reacting an inorganic metal salt with an aliphatic monohydric alcohol containing 1 to 3 carbon atoms and carbon dioxide under substantially anhydrous conditions in the presence of a solid acid acceptor, said alcohol being employed in sufficient amount to form a solution of the resulting metal alkyl carbonate in the alcohol.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: October 31, 1978
    Assignee: Allied Chemical Corporation
    Inventors: Stylianos Sifniades, Allen A. Tunick, Herbert C. Wohlers
  • Patent number: 4123256
    Abstract: An N-[4-(substituted benzyloxy)phenyl]-N'-methyl-N'-methoxyurea of the formula: ##STR1## wherein X, which may be the same or different, is halogen, nitro, cyano, trifluoromethyl, lower alkyl or lower alkoxy and n is an integer of 1 to 5, which shows a pronounced herbicidal activity against a wide variety of weeds in the cultivation of soybean, kidney bean, peanut, cotton or rice plants without any material toxicity to mammals and said crop plants.
    Type: Grant
    Filed: September 22, 1977
    Date of Patent: October 31, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Ryo Yoshida, Ichiki Takemoto, Seizo Sumida, Katsuzo Kamoshita
  • Patent number: 4122111
    Abstract: Biologically active derivatives of benzamide and methods for preparation thereof are disclosed. These derivatives specifically have anti-fungal activity and are characterized by the following general formula: ##STR1## wherein R is H or a saturated or unsaturated alkyl radical of 1-6 carbons; R' is a nitro group, a halogen, a saturated or unsaturated alkyl radical of 1-6 carbons, a cycloalkyl radical of 5 or 6 carbons, or a phenyl, benzyl, or naphthyl radical that is mono- or bis-substituted with a lower alkyl or alkoxy radical; X is H, a lower alkyl radical, or a halogen; and Y is O or S.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: October 24, 1978
    Assignee: ISF Spa
    Inventor: Carlo Scavino
  • Patent number: 4122194
    Abstract: An aryl sulphur compound of formula (I) : ##STR1## where R.sup.1 is C.sub.1-4 alkyl; Ar is a phenyl group optionally substituted by halogen or C.sub.1-4 alkyl and wherein Z is S or SO, having antiallergy activity.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: October 24, 1978
    Assignee: Lilly Industries Limited
    Inventors: Delme Evans, John Christopher Saunders, William Robert Nigel Williamson
  • Patent number: 4120885
    Abstract: Thio substituted ethynylbenzene compounds and their derivatives which are useful for the treatment for the relief of inflammation, pain and fever.
    Type: Grant
    Filed: November 23, 1976
    Date of Patent: October 17, 1978
    Assignee: William H. Rorer, Inc.
    Inventor: Julius Diamond
  • Patent number: 4120866
    Abstract: A process for the production of an arylsulphonium salt, comprising reacting an aromatic compound of the formulaAr--Hin which Ar is an aromatic radical with a sulphoxide of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is an aliphatic or aromatic radical or, together, a divalent radical, in the presence of hydrogen fluoride. The products are known and can be converted to arylthioethers which are intermediates for other known syntheses.
    Type: Grant
    Filed: September 16, 1977
    Date of Patent: October 17, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventor: Adolf Winkler
  • Patent number: 4120886
    Abstract: Novel S-aryl N-cycloalkylthiolcarbamates, such as S-4-methoxyphenyl N-cyclohexylthiolcarbamate, which are useful for controlling pea aphids, and the method of controlling pea aphids with the compounds are disclosed.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: October 17, 1978
    Assignee: PPG Industries, Inc.
    Inventor: Jay Kent Rinehart