Patents Assigned to Toyo Soda Manufacturing Co., Ltd.
  • 2-Alkylaminopyridine derivatives
    Patent number: 4560762
    Abstract: 2-Alkylaminopyridine derivatives represented by a general formula of ##STR1## wherein R denotes a lower alkyl group and Y denotes a methoxy group or a halogen atom, and method for producing the same.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: December 24, 1985
    Assignee: Toyo Soda Manufacturing Co. Ltd.
    Inventors: Kenji Tsuzuki, Hideo Morinaka
  • Process for preventing agglomeration of powders by using triethylenediamine polymers
    Patent number: 4559384
    Abstract: A process for preventing the agglomeration of agglomerative powder, such as TEDA monomer piperazine, sodium chloride and ammonium chloride, comprising adding TEDA polymer to the agglomerative powder or adding TEDA to a solution from which the powdery material is crystallized.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: December 17, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Akihiko Nomura, Masahiko Fujii
  • Herbicides
    Patent number: 4554015
    Abstract: Herbicides containing thiocarbamate derivatives represented by the general formula (I) as an active ingredient ##STR1## wherein X is 5-indanyl, 5,6,7,8-tetrahydro-2-naphthyl, 1,4-methano-1,2,3,4-tetrahydro-6-naphthyl, 1,4-ethano-1,2,3,4-tetrahydro-6-naphthyl, or substituted phenyl,Y is lower alkyl,Z is naphthyl which is unsubstituted or phenyl which is unsubstituted or substituted.
    Type: Grant
    Filed: June 22, 1983
    Date of Patent: November 19, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Tetsuo Takematsu, Makoto Konnai, Hideo Morinaka, Yuji Nonaka, Akira Nakanishi, Kenji Tsuzuki, Mitsuyuki Hashihama, Takeshi Uwotani
  • Spherical micro-porous silica gel and a production process thereof
    Patent number: 4554211
    Abstract: A spherical micro-porous silica gel, which is characterized by having a mean diameter of 3-20 .mu.m, a bulk density of 0.28-0.41 g/cm.sup.3, a pore size of 18,000-100,000 and a specific surface area of 1,000-1,400 m.sup.2 /g and a production process therefor is characterized by employing (a) an aqueous solution containing SiO.sub.2 in which the primary particle diameter is not larger than 6 nm and the molar ratio of SiO.sub.2 to Na.sub.2 O is not larger than 5.5, (b) either stearic acid or a mixture of stearic acid and a non-ionic surface active agent of which HLB ranges from 3.5 to 6.0 as an emulsifier and (c) an organic acid as a gelling agent.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: November 19, 1985
    Assignee: Toyo Soda Manufacturing Co. Ltd.
    Inventors: Junji Arika, Eiji Shiota, Kazuaki Yamamoto
  • Method for separating and purifying amino acid
    Patent number: 4554376
    Abstract: This is a method for separating or purifying an amino acid from a mixture including other substance such as an inorganic salt other than the amino acid and/or a mutual mixture of amino acids including the amino acid by means of piezo-dialysis employing an amphoteric ion exchange membrane. This membrane is made from a ternary block copolymer having a molecular structure of straight chain in which first macro-molecule with a cation exchange group, second macromolecule with an anion exchange group and third macromolecule without ion exchange group are linked together.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: November 19, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Teruo Fujimoto, Yoshinobu Isono, Yoshiyuki Miyaki
  • Aryl N-alkyl-N-(pyridyl or pyrimidyl) carbamate
    Patent number: 4554012
    Abstract: Carbamate derivatives represented by the general formula (I); ##STR1## wherein X is 2-naphthyl, 5-indanyl, 5,6,7,8-tetrahydro-2-naphthyl, 1,4-methano-1,2,3,4-tetrahydro-6-naphthyl, 1,4-ethano-1,2,3,4-tetrahydro-6-naphthyl, 2-quinolyl, or substituted phenyl,Y is an oxygen atom or a sulfur atom,Z is lower alkyl,W is pyridyl or pyrimidyl which is unsubstituted or substituted; process for the preparation of such compounds;and herbicides containing the same as an active ingredient.
    Type: Grant
    Filed: June 8, 1983
    Date of Patent: November 19, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Tetsuo Takematsu, Konnai, Makoto, Hideo Morinaka, Yuji Nonaka, Akira Nakanishi, Kenji Tsuzuki, Mitsuyuki Hashihama, Takeshi Uwotani
  • Process for producing chlorosulfonated polyethylene using a mixed solvent
    Patent number: 4544709
    Abstract: Chlorosulfonated polyethylene having excellent properties as elastomer is produced by dissolving polyethylene in a mixed solvent of carbon tetrachloride and a halogenated aromatic compound such as, for example, chlorobenzene and reacting polyethylene with chlorine and sulfuryl chloride or with sulfuryl chloride.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: October 1, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Mamoru Narui, Tatsushi Nakagawa, Yasuhiro Sakanaka
  • Method of producing cation-exchange membrane having roughed surface
    Patent number: 4537910
    Abstract: A method of producing a cation-exchange membrane having roughed surface which is characterized in mixing silica powder with water to give a suspended or pasty mixture, supporting the resultant mixture on art paper or filter paper, drying the mixture to form silica powder layer, adhering with heating and pressing the silica powder layer on surface of membrane composed of perfluorocarbon polymer, and removing the silica powder layer formed on the surface of said membrane with caustic alkali aqueous solution.
    Type: Grant
    Filed: November 9, 1983
    Date of Patent: August 27, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Michiharu Oogai, Toru Seita, Kosuke Takeshige, Hideo Shuyama
  • Process for producing a halogen-containing ethylbenzene derivative
    Patent number: 4536342
    Abstract: A process for producing a halogen-containing ethylbenzene derivative represented by the general formula: ##STR1## where X is a halogen atom, and Y is a nitrile group, a carboxyl group, a lower alkoxycarbonyl group or an amidocarbonyl group, which comprises reacting a vinyl compound represented by the general formula:CH.sub.2 .dbd.CH--Y (II)where Y is as defined above, with a benzenediazonium salt and halogen ions in a solvent mixture comprising a lower alcohol and/or an ether, and water, under an acidic condition with a mineral acid, in the presence of a monovalent copper compound as a catalyst.
    Type: Grant
    Filed: October 5, 1984
    Date of Patent: August 20, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Kiyotaka Oyama, Tuneo Harada
  • Process for producing a halogen-containing ethylbenzene derivative
    Patent number: 4534909
    Abstract: A process for producing a halogen-containing ethylbenzene derivative represented by the general formula: ##STR1## where X is a halogen atom, and W is a nitrile group, a carboxyl group, a lower alkoxycarbonyl group or an amidocarbonyl group, which comprises diazotizing aniline with a nitrite in a solution mixture comprising a hydrophilic organic solvent, an aqueous mineral acid solution and a vinyl compound represented by the general formula:CH.sub.2 .dbd.CH--W (II)where W is as defined above, to form a benzenediazonium salt, and reacting the benzenediazonium salt, without isolating it from the reaction system, with said vinyl compound in the presence of halogen ions and a copper compound as a catalyst.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: August 13, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Kiyotaka Oyama, Tuneo Harada
  • Method for inhibiting corrosion of metal
    Patent number: 4533525
    Abstract: This invention relates to a method for inhibiting corrosion of a metal surface comprising coating same with a composition containing an inorganic pigment, more particularly a rust-inhibiting pigment, consisting substantially of a vitrified substance, containing a definite range of P.sub.2 O.sub.5 and MgO and having a definite range of a specific area thereof.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: August 6, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Hiroshi Minamide, Takashi Shintani, Hiroshi Murayama
  • Process for preparation of L type zeolites
    Patent number: 4530824
    Abstract: An L type zeolite of a high purity is prepared by crystallizing an amorphous sodium alminosilicate compound containing a silicon component in an amount of 67 to 91 wt. % as SiO.sub.2 on the anhydrous basis in an aqueous potassium hydroxide solution.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: July 23, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Junji Arika, Keiji Itabashi, Yoshio Tamura
  • Process for preparation of alcohols by hydration of olefins
    Patent number: 4528410
    Abstract: Olefins are hydrated to the corresponding alcohols in the presence of at least one crystalline alumino-silicate selected from offretite, ferrierite and erionite. The offretite, ferrierite and erionite are preferably characterized by X-ray diffraction patterns shown in Tables 1 and 7; Tables 2, 8 and 9; and Table 3, respectively. At least a part of the exchangeable cations in the offretite, ferrierite and erionite may be exchanged with at least one cation selected from a hydrogen ion, an alkaline earth metal ion and a rare earth metal ion. Furthermore, at least a part of the exchangeable cations in the erionite may be exchanged with an ammonium ion and/or an alkali metal ion.
    Type: Grant
    Filed: October 13, 1983
    Date of Patent: July 9, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Teruhisa Sakamoto, Satoshi Ishida, Toshio Hironaka, Yukihiro Tsutsumi
  • Process for separating plasma albumin
    Patent number: 4522725
    Abstract: Plasma albumin is separated by a crude albumin fraction from blood plasma by a rough fractional separation and then separating plasma albumin through an ultrafiltration membrane. The ultrafiltration membrane is a membrane made of a polysulfone resin having the formula ##STR1## (n=50 to 250).
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: June 11, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Kenji Koyama, Syotaro Ohno, Mitsutoshi Fukuda
  • Process for producing an addition compound of a dipeptide ester and an amino acid ester
    Patent number: 4521514
    Abstract: A process for producing an addition compound of N-benzyloxycarbonyl-.alpha.-L-aspartyl-L-phenylalanine methyl ester and phenylalanine methyl ester. Benzyloxycarbonylation of the amino group of L-aspartic acid by benzyloxycarbonylchloride in the presence of a base and esterification of phenylalanine containing its L-body by methanol in the presence of an acid are carried out and both the reaction solutions are admixed after residual methanol is removed from the esterification reaction solution. A proteolytic enzyme is added to the resulting mixture solution after it is adjusted to have a pH, value, at which no substantial deactivation of the enzyme occurs. The reaction of N-benzyloxycarbonyl-L-aspartic acid and phenylalanine methyl ester is carried out in the solution at a pH, at which the proteolytic enzyme exerts the enzymatic activity to deposit the addition compound which is then recovered.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: June 4, 1985
    Assignees: Toyo Soda Manufacturing Co., Ltd., Ajinomoto Co., Inc., Sagami Chemical Research Center
    Inventors: Kiyotaka Oyama, Shigeaki Irino, Tsuneo Harada, Masao Nakamura
  • Electrolytic cell
    Patent number: 4519888
    Abstract: Electrolytic cell of single electrode type or multiple electrodes type, which is divided into the anode chamber and the cathode chamber with employing a cation exchange membrane and used for the electrolysis of the aqueous solution of alkali chloride, characterized in comprising(a) anode chamber and cathode chamber,(b) partition having a thickness of less than 6 mm to separate the anode chamber from the cathode chamber,(c) ribs joining the electrode with the partition.
    Type: Grant
    Filed: January 18, 1984
    Date of Patent: May 28, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Michihiro Akazawa, Nobuhiro Kawasaki
  • Photosensitive compositions
    Patent number: 4515886
    Abstract: Photosensitive compositions useful as resists for transistors, ICs, etc. comprising a solution of a photosensitive high polymer of a polymer or a copolymer which contains a unit expressed by the following general formula: ##STR1## (where X.sub.1 is an atom of hydrogen or halogen, a halogenated alkyl group of 1 to 4 carbon atoms or an alkyl group having 1 to 4 carbon atoms, X.sub.2 is a halogen atom or a halogenated alkyl group having 1 to 4 carbon atoms and R is an aromatic ring or a heterocyclic ring), and a photosensitizing agent dissolved in organic solvents. The photosensitive compositions show marked improvement in photosensitivity and gamma value.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: May 7, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Tsuguo Yamaoka, Mitsutoshi Fukuda
  • Process for preparing a rubber-asphalt composition
    Patent number: 4511679
    Abstract: A process for preparing a rubber-asphalt composition, which comprises blending a particulate or powdery rubber composition comprising 100 parts by weight of a particulate or powdery rubber having a particle size of at most 2 mm and from 0.1 to 50 parts by weight of a particulate or powdery blowing agent having a particle size of at most 1 mm, with asphalt containing from 0.1 to 30 parts by weight of an organic base, based on 100 parts by weight of the asphalt.
    Type: Grant
    Filed: December 15, 1983
    Date of Patent: April 16, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Takashi Ariyoshi, Noriaki Emura, Yasuhiro Sakanaka
  • Process for producing a high purity cyclized polymer of isoprene
    Patent number: 4508877
    Abstract: A process for producing cyclized isoprene polymers having a dispersion degree not higher than 2, which comprises living-polymerizing isoprene monomers using as initiator an organometal compound which is expressed by a general formula RM (where R is alkyl, aryl or aralkyl group and M is lithium, sodium or potassium atom), to obtain an isoprene polymer having a dispersion degree not larger than 1.1, which is close to a unit dispersion, and bringing the obtained polymer into contact with a catalyst composed of a boron trifluoride-ether complex and a carboxylic acid expressed by a general formula Cl.sub.3-n H.sub.n CCOOH (where n is an integer ranging from 0 to 3) under a mild condition. The cyclized polymer is very useful for negative resists in integrated circuits.
    Type: Grant
    Filed: November 22, 1983
    Date of Patent: April 2, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Masaaki Todoko, Hiroyuki Watanabe
  • Process for preparation of aspartylphenylalanine alkyl esters
    Patent number: 4506011
    Abstract: .alpha.-L-aspartylphenylalanine lower alkyl esters are prepared by a process wherein L-aspartic acid and a lower alkyl ester of L-phenylalanine are contacted with a culture or treated culture product of a microorganism belonging to the genus Pseudomonas, Alcaligenes, Torulopsis, Rhodotorula or Sporobolomyces and being capable of producing a .alpha.-L-aspartyl-L-phenylalanine lower alkyl ester from L-aspartic acid and a lower alkyl ester of L-phenylalanine.
    Type: Grant
    Filed: August 26, 1982
    Date of Patent: March 19, 1985
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Tsuneo Harada, Hisao Takemoto, Tatsuo Igarashi