Patents Assigned to Mitsubishi Kasei Corporation
  • Patent number: 5308904
    Abstract: Disclosed herein are a resin composition for a porous film or sheet, comprising:100 parts by weight of a polyolefin (A) having a density of not more than 0.930 g/cm.sup.3 and a melt index of not more than 2 g/10 min;100 to 400 parts by weight of a filler (B);1 to 100 parts by weight of a plasticizer (C) composed of a compound having an ester linkage or an amide linkage in a molecule, and having a molecular weight of not less than 100, a boiling point of not lower than 200.degree. C. and a melting point of not higher than 100.degree. C. under an ordinary pressure; and0.0001 to 0.1 part by weight of a radical generator (D);a porous film or sheet therefrom; anda process for producing the same.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: May 3, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Toshio Fujii, Akihiko Sakai, Tasuku Suzuki
  • Patent number: 5306839
    Abstract: A method for producing an aldehyde, which comprises reacting an olefinic compound with carbon monoxide and hydrogen in the presence of a Group VIII metal compound and an organic phosphite compound to produce a corresponding aldehyde, wherein an organic phosphite compound of the formula (I):P(OR.sub.1)(OR.sub.2)(OR.sub.3) (I)wherein each of R.sub.1 and R.sub.2 which may be the same or different, is a 2-naphthyl group which may have a substituent, provided that at least one of R.sub.1 and R.sub.2 is a substituted 2-naphthyl group of the formula (II): ##STR1## wherein R.sub.4 is a C.sub.1-30 organic group, and each of R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 which may be the same or different, is a hydrogen atom or an organic group, and R.sub.3 is 1 a 2-naphthyl group which may have a substituent, 2 a phenyl group which may have a substituent, or 3 an alkyl group which may have a substituent, is used as said organic phosphite compound.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: April 26, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Keiichi Sato, Masaki Takai, Yuji Kawaragi, Tooru Ookoshi
  • Patent number: 5306835
    Abstract: A method for producing octadienols, which comprises reacting 1,3-butadiene with water in the presence of a palladium compound, a phosphine compound and carbon dioxide, wherein a compound of the formula (I): ##STR1## wherein each of R.sup.1, R.sup.5 and R.sup.9 which may be the same or different, is a hydrocarbon group, and each of R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8, R.sup.10, R.sup.11 and R.sup.12 which may be the same or different, is hydrogen or a substituent, provided that at least one of them is an electron donative substituent, is used as the phosphine compound.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: April 26, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Keiichi Sato, Iwao Nakajima, Yoko Misu
  • Patent number: 5306845
    Abstract: A method for producing an aldehyde, which comprises hydrogenating a carboxylic acid or its alkyl ester with molecular hydrogen in the presence of a catalyst, wherein (1) chromium oxide of high purity having a specific surface area of at least 10 m.sup.2 /g and a total content of sodium, potassium, magnesium and calcium of not more than 0.4 wt %, is used as the catalyst, and (2) the hydrogenation reaction is conducted while maintaining the carboxylic acid or its alkyl ester at a concentration of not more than 10 vol %.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: April 26, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Toshiharu Yokohama, Naoko Fujita, Takao Maki
  • Patent number: 5304556
    Abstract: Benzamide derivatives of the following formula (I) ##STR1## [wherein R.sup.1 : ##STR2## B, D: hydrogen atom, etc. E: pyridyl group, etc.n: integer from 0 to 2R.sup.2 : R.sup.3 R.sup.4 N-- etc.(R.sup.3,R.sup.4 : optionally substituted C.sub.6 -C.sub.14 aryl group, etc.)A; ##STR3## --CH.sub.2 --, --N.dbd.N--, --CH.dbd.N--, --N.dbd.CH--, --CH.dbd.CH-- or --CH.sub.2 --CH.sub.2 --].Optical antipodes thereof or pharmaceutically acceptable salts thereof, show excellent PAF antagonism and are effective for therapy and prophylaxis of diseases caused by PAF (bronchial asthma, nephritis, shocks, cardiac infarction, cerebral hemorrhage, ulcer, DIC, autoimmune diseases, thrombosis, etc.).
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: April 19, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Akihiro Yamamoto, Shuji Morita, Yoshio Hayashi, Noboru Yamada, Toshihito Kitamura
  • Patent number: 5304389
    Abstract: A non-hygroscopic icing composition is disclosed. The icing comprises sugar, fat and an emulsifier as the main components, wherein 80% by weight or more of said sugar is particles passing through a 63 .mu.m mesh size sieve and 40% by weight or more of said sugar is particles having a size of from 32 .mu.m to 63 .mu.m and the sugar content in the icing is 50% by weight or more.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: April 19, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Tsutomu Kondo, Akio Nishimura
  • Patent number: 5304661
    Abstract: Acyclic terpene compounds useful as intermediates for producing sarcophytol A which have an anti-carcinogenic promotor activity and anti-tumor activity, which compounds are shown by the general formula (I): ##STR1##
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: April 19, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Hisao Takayanagi, Yasunori Kitano, Yasuhiro Morinaka
  • Patent number: 5302666
    Abstract: A resin composition for fiber reinforced plastic comprising the following components A, B, C, D and E as essential components:A: a bisphenol A epoxy resin having an epoxy equivalent of at most 250 and being liquid at room temperature,B: a bisphenol A epoxy resin having an epoxy equivalent within a range of from 400 to 5,000 and softening point of from 60.degree. to 200.degree. C.,C: a phenol novolak type epoxy resin,D: a nitrile rubber, andE: a curing agent.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: April 12, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Seiichi Hino, Jun Enda, Masaki Yamamoto
  • Patent number: 5302686
    Abstract: A hollow article or sheet of a copolyester which comprises, as main components, terephthalic acid as a dicarboxylic acid component and ethylene glycol as a diol component and which is characterized by:(1) isophthalic acid as a dicarboxylic acid component being from 0.5 to 3.0 mol %,(2) diethylene glycol as a diol component being from 1.0 to 2.5 mol %,(3) the intrinsic viscosity being from 0.60 to 1.50 dl/g,(4) the concentration of terminal carboxyl groups being at most 18 eq/ton, and(5) the content of a cyclic trimer being at most 0.40% by weight.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: April 12, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Katsuji Tanaka, Hitoshi Matsumoto, Takuji Hirahara, Osamu Kishiro
  • Patent number: 5300525
    Abstract: According to the present invention, there is provided an anti-solid tumor agent comprising a cembrane-type compound represented by the general formula (I) or (II): ##STR1## wherein R is a hydrogen atom or an acyl group, as an effective ingredient.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: April 5, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Yoshiharu Morita, Koichiro Hirayama
  • Patent number: 5298608
    Abstract: A metal chelate compound comprising a monoazo compound of the following formula (I): ##STR1## (wherein A is a residue forming a hetero ring together with the carbon atom and the nitrogen atom to which it is bonded, B is a residue forming an aromatic group together with the two carbon atoms to which it is bonded, and X is a hydrogen atom or a cation), and a metal, and an optical recording medium comprising a substrate and a recording layer formed thereon for information to be written in and/or read out by laser, wherein said recording layer contains the metal chelate compound comprising a monoazo compound of the above formula (I) and a metal.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: March 29, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Tetsuo Murayama, Shuichi Maeda, Chiyoko Fukabori, Takumi Nagao
  • Patent number: 5292607
    Abstract: A novel electrophotographic photoreceptor and a method of preparation therof are disclosed. The photoreceptor is characterized in that the photosensitive layer contain a specific carbonate resin binder resin having a weight average molecular weight on not less than 200,000. The resin is preferably a polycarbonate resin which contains repeating units represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are respectively and independently a hydrogen atom, a lower alkyl group, a halogen atom or an unsubstituted or substituted aromatic group; and R.sup.9 and R.sup.10 are respectively and independently a hydrogen atom, a lower alkyl group, an unsubstituted or substituted aromatic group, or form a ring or a carbonyl group together with the linking carbon atom.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: March 8, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Ryoko Aso, Michio Kawai, Osamu Murakami, Mamoru Nozomi, Ryuji Nakayama, Tadashi Umehara
  • Patent number: 5292583
    Abstract: A thermal transfer recording sheet comprising a base film, a heat transferable ink layer formed on one side of the base film and a heat resistant lubricating layer formed on the other side of the base film, wherein the heat resistant lubricating layer contains fine elastomer particles.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: March 8, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Tsutomu Taki, Katsuhiko Kuroda
  • Patent number: 5292714
    Abstract: A dye transfer thermal printing sheet which can give a color record image excellent in color reproducibility and weather resistance with middle shade including black and sufficiently saturated density. This printing sheet includes a substrate on which are arranged, in face-sequence, coloring material layers which are different in hue and contain at least one dye represented by the formula (I), at least one dye represented by the formula (II) and at least one dye represented by the formula (III).
    Type: Grant
    Filed: February 10, 1993
    Date of Patent: March 8, 1994
    Assignees: Matsushita Electric Industrial Co., Ltd., Mitsubishi Kasei Corporation
    Inventors: Tetsuji Kawakami, Akihiro Imai, Nobuyoshi Taguchi, Yukichi Murata, Takao Hirota
  • Patent number: 5292911
    Abstract: Novel monocyclic terpene derivative of the formula: ##STR1## wherein R is hydrogen atom, trimethylsilyl group or 1-ethoxyethyl group, and novel intermediates therefor. The terpene derivative (I) is a useful intermediate for preparing Sarcophytol A having an anti-carcinogenesis promoter activity and an antitumor activity.
    Type: Grant
    Filed: March 10, 1992
    Date of Patent: March 8, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Hisao Takayanagi, Yasunori Kitano, Yasuhiro Morinaka
  • Patent number: 5292439
    Abstract: A method for preparing an ultrapure water, from which impurities including inorganic salts, organic substances, fine particles and microorganisms are removed, by treatment including an ion exchange treatment, which comprises using an ion exchange resin comprising a copolymer of a polyvinyl compound and a monovinyl aromatic compound which may contain a monovinyl aliphatic compound, as the matrix, at least in a mixed bed ion exchange treatment of the ion exchange treatment, said ion exchange resin used comprising at least a regenerated form ion exchange resin A eluting an organic compound of a molecular weight of less than 3,000 but substantially not eluting an organic compound of a molecular weight of not less than 3,000 when dipped in a hot water at 50.degree. C. for 7 days.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: March 8, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Takamitsu Morita, Junya Watanabe, Toyokazu Sugawara
  • Patent number: 5292614
    Abstract: A negative photosensitive composition comprising an alkali-soluble resin, a photo-acid-generating material and a crosslinking agent for the alkali-soluble resin, which acts under an acidic condition, wherein the crosslinking agent is a compound of the following formula (I): ##STR1## wherein each of A.sup.1 to A.sup.10 which are independent of one another, is a hydrogen atom, --CH.sub.2 OH or --CH.sub.2 OR, wherein R is C.sub.1 -C.sub.4 linear or branched chain alkyl, and X is C.sub.2 -C.sub.10 linear or branched chain alkylene, provided that at least four among A.sup.1 to A.sup.10 are --CH.sub.2 OR, and a plurality of --CH.sub.2 OR may be the same or different.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: March 8, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Tameichi Ochiai, Noriaki Takahashi, Tomoyo Ishiguro
  • Patent number: 5290650
    Abstract: An electrostatic image-developing positively chargeable toner comprising at least toner particles containing a resin and a colorant, and conductive fine particles having their surface treated with a positively chargeable resin.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: March 1, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Takashi Shintaku, Mikio Uno, Yoshihiro Kigami
  • Patent number: 5286182
    Abstract: A spinning nozzle for dry spinning a spinning solution containing a metal compound and an organic polymer compound by a blowing method. In the spinning nozzle, an air nozzle 6 is provided having a rectangular-prism-like slit which is formed by opposing inner surfaces, extending in parallel to each other. The opposing inner surfaces each include a projecting portion, which are formed at the front side of a pair of cover plates 1,1, with each of the projecting portions having a knife edge portion at its free end. Spinning solution supplying nozzles are composed of a plurality of linear pipes and are arranged in the air nozzle 6 in such a manner that they are in parallel to the parallel surfaces of the cover plates and project from the edges of the the parallel surfaces. Air fed through a gas feeding port 5 and blown out as an air stream from the air nozzle 6, and streams of the spinning solution extruded from the spinning solution supplying nozzles form parallel streams.
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: February 15, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Hiroshi Maeda, Mamoru Shoji
  • Patent number: 5286600
    Abstract: A negative photosensitive composition comprising (a-1) a compound having at least two organic groups of the following formula (I):--OCH.sub.2 OR.sup.1 (I)wherein R.sup.1 is an alkyl group, in its molecule and an alkali-soluble resin, or (a-2) an alkali-soluble resin having at least two organic groups of the above formula (I) in its molecule, and (b) a photo-acid-generating material.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: February 15, 1994
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Tameichi Ochiai, Noriaki Takahashi, Yasuhiro Kameyama