Patents Assigned to Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
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Patent number: 5821193Abstract: An adsorbent for removing ketoamine-containing protein, which comprises carrying a compound having a terminal functional group of the formula: ##STR1## wherein each of R.sup.1 and R.sup.2 is an organic group and X is 0 or 1, on a porous water-insoluble carrier, a process for removing ketoamine-containing protein by employing the above adsorbent, a process for preventing or treating for diabetic complication by removing ketoamine-containing protein with the above adsorbent and an adsorber for removing ketoamine-containing protein.Type: GrantFiled: December 6, 1995Date of Patent: October 13, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Nobutaka Tani, Eiji Ogino
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Patent number: 5817383Abstract: A substrate of electrode for liquid crystal which comprises a substrate film for liquid crystal comprising an aromatic polyester or a polycarbonate which contains, as a bisphenol component, at least one selected from the group consisting of 1,1-bis(4-hydroxyphenyl)-alkylcycloalkane, 1,1-bis(3-substituted-4-hydroxyphenyl)-alkylcycloalkane and 1,1-bis(3,5-substituted-4-hydroxyphenyl)-alkylcycloalkane, and a transparent electrode for liquid crystal which is provided on at least one surface of the film. It has a high heat resistance, a low retardation and a low variation of the retardation thereof with heating.Type: GrantFiled: August 19, 1996Date of Patent: October 6, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Junji Takase, Kazuto Hosono, Koji Shimizu, Sadao Fujii
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Patent number: 5810705Abstract: A developing apparatus of a toner delivery system by contacting a developer roller with an electrostatic latent image-carrying member eliminates a protective layer in the conventional concept from a surface of the developing roller, and provides a covering layer which is formed by adhering particles of toner or a material having electrical characteristics and mechanical characteristics equal to those of the toner on the surface of the developing roller. Those particles are adhered utilizing a surface tackiness of an elastomer layer itself which is a structural element of the developing roller.Type: GrantFiled: August 28, 1996Date of Patent: September 22, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kazuyoshi Mimura, Yoshihisa Tawada, Shigeo Akimoto, Kenji Kobayashi, Yasunori Matsunari, Susumu Fukuda
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Patent number: 5810920Abstract: To treat waste containing harmful metals such as lead, cadmium, mercury, chromium, copper, nickel, zinc, etc., the waste is mixed with a treating agent containing, as the essential constituent component, solid acid(s) and/or cement and additionally a caking inhibitor, kneaded with water where necessary, then solidified by curing. Harmful metals are thereby stabilized in the thus-solidified cakes and are not released therefrom.Type: GrantFiled: May 12, 1997Date of Patent: September 22, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kenji Ueshima, Noboru Ikitsu, Takuji Nomura, Takashi Funahashi, Masakazu Uekita
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Patent number: 5811501Abstract: The present invention provides a novel halogen-free solvent system which can produce a good isobutylene polymer and can be easily reused. A novel process for the production of an isobutylene polymer is provided which comprises using a hydrocarbon solvent having a boiling point of not lower than 105.degree. C. and a melting point of not higher than -90.degree. C. Heretofore, a solvent system containing a halogenated hydrocarbon such as methylene chloride has been used for the production of an isobutylene polymer. However, such a solvent system has a great adverse effect on the environment. Therefore, a non-halogenated solvent is desirable. The present invention is characterized by the use of a hydrocarbon solvent as a reaction solvent. The resulting polymer has good properties. Further, compounds which are produced as by-products during the reaction can be easily removed, enabling the recycling of the solvent used. Thus, the production cost can be reduced.Type: GrantFiled: June 27, 1996Date of Patent: September 22, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Takeshi Chiba, Hiroshi Fujisawa, Yoshimichi Yamanaka, Yoshikuni Deguchi, Kazuya Yonezawa
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Patent number: 5808127Abstract: This invention provides a hydrosilylation method in which hydrosilyl groups are added to olefin using a metal catalyst, which comprises controlling the hydrosilylation reaction by allowing a compound selected from thiazoles and phosphines to coexist in the reaction system, and a process making use thereof for the production of a hydrosilyl group-containing organic curing agent. This invention gives a method for easy control of hydrosilylation reaction and a process making use thereof for the production of an organic compound modifying silicon compound having 2 or more hydrosilyl groups in the molecule. This compound is used as a curing agent of addition type curable compositions. As an accompanying effect, storage stability of the produced curing agent is improved when a catalyst and additives of this invention remain therein, in comparison with the case in which only the catalyst remains.Type: GrantFiled: May 16, 1997Date of Patent: September 15, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Yoshiki Nakagawa, Masato Kusakabe
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Patent number: 5801251Abstract: A process for crystallizing N.sup.2 -((S)-1-ethoxycarbonyl-3-phenylpropyl)-N.sup.6 -trifluoroacetyl-L-lysyl-L-proline using one or a mixture of at least two kinds of compound having the general formula: CR.sup.1 R.sup.2 R.sup.3 R.sup.4 as a crystallizing solvent, optionally with an auxiliary solvent which controls crystallization condition.Type: GrantFiled: May 3, 1996Date of Patent: September 1, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Yasuyoshi Ueda, Hajime Manabe
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Patent number: 5798403Abstract: This invention provides a heat resistant thermoplastic resin composition comprising (A) 5 to 95 parts by weight of a polyamide resin, (B) 5 to 95 parts by weight of a copolymer containing an unsaturated carboxylic acid, comprising 40 to 80% by weight of an aromatic vinyl compound, 15 to 50% by weight of a vinyl cyanide compound, 0.1 to 20% by weight of an unsaturated carboxylic acid and 0 to 30% by weight of other vinyl compounds copolymerizable therewith, (C) 5 to 50 parts by weight of a graft copolymer, which is obtained by a graft polymerizing 60 to 5% by weight of a vinyl compound in the presence of 40 to 95% by weight of a diene rubber of an average particle size of 0.1 to 2.0 .mu.m, and, (D) 0.1 to 30 parts by weight of a kaolin to 100 parts by weight of the sum (A), (B) and (C). This heat resistant thermoplastic resin composition can provide molded articles which are superior in heat distortion resistance, impact strength and surface appearance, and has a high flowability in its molding.Type: GrantFiled: May 13, 1997Date of Patent: August 25, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Koichi Yamashita, Hiroshi Kobayashi, Masahiro Asada
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Patent number: 5798387Abstract: A novel amino acid derivative represented by the general formula (I) shown below or a salt thereof have now been provided by chemical synthesis, and it has been found that these new compounds stimulate proliferation and physiological activities of the T cells of mammals, have an immunomodulating activity and also have an antitumor activity or a carcinostatic activity. It has also been found that these new compounds have an effect of stimulating the proliferation of hematopoietic stem cells. ##STR1## wherein y is 0 or 1; R.sup.1 represents an unsubstituted C.sub.1 -C.sub.8 alkyl group or others;R.sup.2 represents a hydrogen atom, a C.sub.1 -C.sub.5 alkyl group or others;R.sup.3 represents a hydrogen atom, a C.sub.1 -C.sub.8 alkyl group or others;R.sup.4 represents a hydrogen atom, a C.sub.1 -C.sub.3 alkyl group or others;R.sup.5 represents a group --OR.sup.42, a group ##STR2## or others.Type: GrantFiled: November 25, 1996Date of Patent: August 25, 1998Assignees: Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai, Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masaaki Ishizuka, Masaji Kawazu, Toshiaki Katsumi, Yoshihide Fuse, Kenji Maeda, Tomio Takeuchi
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Patent number: 5798414Abstract: A resin composition is disclosed, which comprizes (I) a graft copolymer using a medium-size rubber particles grown by an acid-group-containing latex, (II) a graft copolymer using small-size rubber particles, (III) a styrene-acrylonitrile copolymer, and/or (IV) a styrene-maleimide copolymer, said resin composition containing 5-40 weight % of rubber. The resin composition is not only superior in impact strength, planar impact strength in particular and gloss, but is favorable in moldability and heat resistance.Type: GrantFiled: June 13, 1996Date of Patent: August 25, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Ikuhiro Mishima, Norito Doi, Youichi Matsumura, Shigemi Matsumoto
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Patent number: 5777037Abstract: The present invention provides a novel solvent which is capable of providing an excellent isobutylene polymer, little affects the environment, has a lower solubility in water than those of halogenated hydrocarbons having 1 or 2 carbon atoms and can be decomposed relatively easily. Namely, the present invention relates to: a process for producing an isobutylene polymer, which comprises performing a cationic polymerization reaction in a solvent containing primary and/or secondary monohalogenated hydrocarbon(s) having 3 to 8 carbon atoms, and an isobutylene polymer thus obtained; and a process for producing an isobutylene polymer having a vinyl group introduced into the terminal thereof, which comprises reacting the isobutylene polymer produced above with 1,9-decadiene or allyltrimethylsilane, and an isobutylene polymer thus obtained.Type: GrantFiled: January 16, 1996Date of Patent: July 7, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Yoshimichi Yamanaka, Hiroshi Fujisawa, Takeshi Chiba, Yoshikuni Deguchi, Kazuya Yonezawa
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Patent number: 5769938Abstract: To treat waste containing harmful netals such as lead, cadmium, mercury, chromium, copper, nickel, zinc, etc., the waste is mixed with a treating agent containing, as the essential constituent component, solid acid(s) and/or cement and additionally a caking inhibitor, kneaded with water where necessary, then solidified by curing. Harmful metals are thereby stabilized in the thus-solidified cakes and are not released therefrom.Type: GrantFiled: April 2, 1996Date of Patent: June 23, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kenji Ueshima, Noboru Ikitsu, Takuji Nomura, Takashi Funahashi, Masakazu Uekita
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Patent number: 5763023Abstract: A large-sized in-mold expansion-molded article of an olefin synthetic resin having 150 mm or more in thickness, 50% or more in fusion ratio and 10% or less in density distribution is disclosed. The expansion-molded article is obtainable by adoption of a process in which pre-expanded beads are charged into a mold, preheated and steamed before molding. Large-sized expansion-molded article of an olefin synthetic resin 500 mm or even more in thickness is obtainable by the present invention.Type: GrantFiled: September 30, 1996Date of Patent: June 9, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Kiyoshi Matsuki, Yoshiaki Yawata
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Patent number: 5759693Abstract: The object of the invention is to solve a problem of bending of laminate caused by hardening contraction of epoxy resin that has been a subject in laminate used conventional epoxy resinous composition in laminate of two or more than two layers used for electric and electronic parts, and to provide a novel laminate obtaining excellent adhesive property and heat resistant property, and exhibiting no bending. The inventive laminate achieving the above object comprises laminating at least the following two components (a) and (b): (a) resin composition comprising thermosetting resin composed of imide carbonate synthesized by reacting cyanate resin and compound which containing at least 1 or more than 1 phenolic hydroxyl, and epoxy resin (b) heat resistant resin obtaining glass transition temperature of 150.degree. C. or more than 150.degree. C. and thermal expansion coefficient of 0.4 to 3.8.times.10.sup.-5 cm/cm/.degree.C. at the temperature of 20.degree. (ordinary temperature) to 150.degree. C.Type: GrantFiled: March 10, 1997Date of Patent: June 2, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hiroyuki Tsuji, Shoji Hara, Hirosaku Nagano
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Patent number: 5756768Abstract: There is described a process for preparing 3-(2-thienylthio)butyric acid by converting a compound having the formula (III): ##STR1## wherein R is a straight chain or branched C.sub.1 to C.sub.4 alkyl group, whereby the production of 3-(3-thienylthio)butyric acid as a by-product which is the position isomer can be controlled to at most 0.1 mol %. 3-(2-Thienylthio)butyric acid is a useful compound as an intermediate for a medicinal compound.Type: GrantFiled: August 22, 1996Date of Patent: May 26, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Fumihiko Kanou, Toshihiro Takeda, Natsuki Mori, Kazunori Kan
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Patent number: 5753737Abstract: A coating composition containing(A) a silyl group-containing vinyl polymer which has on the polymer chain ends or side chain thereof at least one silicon atom, to which a hydrolyzable group is linked, per polymer molecule,(B) a reaction product of an aminosilane compound with an epoxy compound(C) a hydrolyzable ester compound and(D) an inorganic pigment.The coating composition of the present invention has excellent film properties such as appearance, moisture resistance and grindability and is suitable for use as an undercoating and a primer coating.Type: GrantFiled: December 9, 1996Date of Patent: May 19, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Shoichi Matsumura, Toshiro Nanbu, Hisao Furukawa, Jo Kawamura, Hirotoshi Kawaguchi
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Patent number: 5741508Abstract: Livestock and poultry are fed with feed containing at least one spice chosen from among the families Myristicaceae, Cruciferae, Rutaceae, Compositae, Pedaliaceae, Piperaceae, Leguminosae, Umbelliferae, Myrtaceae, Solanaceae, Labiatae, Lauraceae, Liliaceae and Zingiberaceae, whereby the active ingredients of the spice taken into the bodies of the thus-fed livestock and poultry are transferred to their internal fat thereby to modify their meat and to improve the smell of their fat. Accordingly, the fatty smell of the meat and fat to be obtained from the thus-fed livestock and poultry is removed and the freshness-keeping power of the meat and fat is enhanced. As the spices may be added to feed, livestock and poultry may efficiently take the spices with ease.Type: GrantFiled: December 6, 1995Date of Patent: April 21, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Ikuo Katsumi, Yoshihide Fuse, Taizo Kawabe, Naoko Yasuhara, Yoji Hisada
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Patent number: 5741860Abstract: A thermoplastic resin composition is disclosed, which comprizes 5-55 weight % of a copolymer (A) whose glass transition temperature is not more than 0.degree. C., and 95-45 weight % of a high .alpha.-methylstyrene-content ABS resin (B) and/or a maleimide-type ABS resin (C), both (B) and (C) being not less than 100.degree. C. in thermal deformation temperature (load 18.6 kg/cm.sup.2), and said resin composition being not less than 10 kg.cm/cm in Izod impact strength (23.degree. C.). The resin composition provides molded articles less deformable at high temperatures, low in impact-induced stress, i.e, high in impact energy absorptivity, and thus is suitable for trim parts for use in interior decoration of automobiles.Type: GrantFiled: June 18, 1996Date of Patent: April 21, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Shigemi Matsumoto, Akinaga Goda
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Patent number: 5739267Abstract: Processes for the isolation of a telechelic isobutylene polymer in a non-aqueous system to prevent the generation of waste water having a solvent dissolved therein and processes for the preparation of a telechelic isobutylene polymer having more advantageous unsaturated groups. A process for the isolation of an isobutylene polymer includes a cationic polymerization reaction in a non-aqueous system in the presence of a catalyst MX.sub.n wherein M represents a metallic atom and X may be the same or different and represents a halogen atom or a monovalent hydrocarbon group. The process comprises conducting the cationic polymerization reaction, conducting a ligand exchange reaction of said catalyst, and then removing a component containing M.Type: GrantFiled: September 16, 1996Date of Patent: April 14, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Hiroshi Fujisawa, Yoshikuni Deguchi, Kouji Noda, Masakazu Isurugi, Masanobu Tamura, Junichi Hazama, Tsutomu Ikeda, Shun Wachi
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Patent number: 5733975Abstract: A polyolefin resin composition which comprises:(A) a polyolefin,(B) 0.1 to 100 parts of a core-shell graft copolymer prepared by graft copolymerizing (b) 5 to 60 parts by weight of a monomer component comprising a copolymerizable vinyl compound selected so that the glass transition temperature of a polymer of said monomer component alone is not less than 25.degree. C., onto (a) 40 to 95 parts by weight of a crosslinked rubber-like polymer having a glass transition temperature of not more than 25.degree. C., and(C) 0 to 400 parts of an inorganic filler, said parts of (B) and (C) being parts by weight per 100 parts by weight of (A). The above-mentioned polyolefin resin composition shows the excellent processability, impact resistance, rigidity and surface property.Type: GrantFiled: March 31, 1997Date of Patent: March 31, 1998Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Taizo Aoyama, Kazuhiro Hara, Yoshihiko Okimura, Akinori Kitora Shu, Hiroki Kobayashi, Michinobu Izumi