Patents by Inventor Tohei Moritani
Tohei Moritani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20040170843Abstract: Coated fused silica capillaries useful for capillary electrophoresis are disclosed.Type: ApplicationFiled: February 27, 2003Publication date: September 2, 2004Inventors: Tohei Moritani, Benjamin Chu
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Publication number: 20020115738Abstract: This invention relates to functional breakable crosslinkers and polymer networks made of functional breakable crosslinkers. The polymer networks show high selectivity or molecular recognition and are suitable for the use in separation materials and sensors. A representative functional crosslinker is 2,3-Dihydroxy-N,N,N′N′-tetramethyl-N,N′-bis{3-[(2-methylacryloyl)amino]propyl}-1,4-butanediaminium dihalide (“Imprinter-Q”). Imprinter-Q comprises three functional parts: two polymerizable double bonds; two cationic groups; and a 1,2-glycol link between the cationic groups that is easily cleavable. Imprinter-Q can be polymerized with other polymerizable monomers and cross-linkers to obtain polymer networks. After breaking the 1,2-glycol bond, the polymer network has receptor sites that present high affinity for divalent anionic molecules or ions.Type: ApplicationFiled: February 6, 2002Publication date: August 22, 2002Inventors: Tohei Moritani, Carmen Alvarez-Lorenzo
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Patent number: 5703202Abstract: A process for treating a liquid crystal polymer film which includes the steps of: heating a film obtained by extrusion molding of a liquid crystal polymer, while contacting at least one surface of the film with a supporting body, to melt the polymer; cooling the melted polymer to form a solidified polymer layer; and separating the solidified polymer layer from the supporting body. The process readily provides liquid crystal polymer films having excellent resistance to intra-layer delamination and high tensile strength and elongation, as well as excellent resistance to abrasion, dimensional stability when heated, and resistance to folding.Type: GrantFiled: April 2, 1996Date of Patent: December 30, 1997Assignees: Hoechst Celanese Corp, Kuraray Co. Ltd.Inventors: Randy Douglas Jester, John Arthur Penoyer, Douglas Duane Roth, Detlef Frank, Minoru Onodera, Takeichi Tsudaka, Toshiaki Sato, Tohei Moritani
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Patent number: 5582820Abstract: A multilayered structure comprising at least 2 layers of a gas barrier resin layer and a protective layer, at least 1 layer thereof containing a deodorant, and a colostomy bag having excellent odor barrier properties (skatole and ammonia barrier properties) made of the film of the multilayered structure.Type: GrantFiled: January 5, 1994Date of Patent: December 10, 1996Assignee: Kuraray Co., Ltd.Inventors: Yoshio Yamamoto, Tohei Moritani, Akihiko Kawasaki
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Patent number: 5529740Abstract: A process for treating a liquid crystal polymer film which includes the steps of: heating a film obtained by extrusion molding of a liquid crystal polymer, while contacting at least one surface of the film with a supporting body, to melt the polymer; cooling the melted polymer to form a solidified polymer layer; and separating the solidified polymer layer from the supporting body. The process readily provides liquid crystal polymer films having excellent resistance to intra-layer delamination and high tensile strength and elongation, as well as excellent resistance to abrasion, dimensional stability when heated, and resistance to folding.Type: GrantFiled: September 16, 1994Date of Patent: June 25, 1996Inventors: Randy D. Jester, John A. Penoyer, Douglas D. Roth, Detlef Frank, Minoru Onodera, Takeichi Tsudaka, Toshiaki Sato, Tohei Moritani
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Patent number: 5492953Abstract: Provided are resin compositions comprising the following (A), (B), (C), which is at least one member selected from (C.sub.1) through (C.sub.3) and (D):(A): a polyolefin,(B): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%,(C): (C.sub.1): at least one inorganic substance selected from titanium oxide, talc, calcium carbonate, mica and absorptive inorganic materials,(C.sub.2): at least one compound selected from the group consisting of metal salts of higher fatty acid having 8 to 22 carbon atoms, metal salts of ethylenediaminetetraacetic acid and hydrotalcite, and(C.sub.3): a polyolefin modified with an unsaturated carboxylic acid or derivatives thereof;and,(D): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate component of at least 20%.Type: GrantFiled: December 22, 1994Date of Patent: February 20, 1996Assignee: Kuraray Co., Ltd.Inventors: Sumio Itamura, Tohei Moritani, Toshiaki Sato, Taichi Negi
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Patent number: 5389709Abstract: Provided are resin compositions comprising the following (A), (B), (C), which is at least one member selected from (C.sub.1) through (C.sub.3), and (D):(A): a polyolefin,(B): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%,(C):(C.sub.1): at least one inorganic substance selected from titanium oxide, talc, calcium carbonate, mica and absorptive inorganic materials,(C.sub.2): at least one compound selected from the group consisting of metal salts of higher fatty acid having 8 to 22 carbon atoms, metal salts of ethylenediaminetetraacetic acid and hydrotalcite, and(C.sub.3): a polyolefin modified with an unsaturated carboxylic acid or derivatives thereof;and,(D): a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate-component of at least 20%.Type: GrantFiled: November 6, 1992Date of Patent: February 14, 1995Assignee: Kuraray Co., Ltd.Inventors: Sumio Itamura, Tohei Moritani, Toshiaki Sato, Taichi Negi
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Patent number: 5094921Abstract: Provided are multilayered structures comprising at least 2 layers of a layer which comprises a resin composition comprising:(A) a thermoplastic resin,(B) a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%, and(C) a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate component of at least 20%, anda layer which comprises a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%.These multilayered structures have excellent gas barrier properties and resistance to intralayer delamination, and the resin composition layer thereof has neat appearance.Type: GrantFiled: August 8, 1990Date of Patent: March 10, 1992Assignee: Kuraray Co., Ltd.Inventors: Sumio Itamura, Tohei Moritani, Toshiaki Sato, Taichi Negi
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Patent number: 5082743Abstract: Provided are resin compositions comprising:(A) 60 to 95% by weight of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%,(B) 4.5 to 39.5% by weight of an ethylene-vinyl acetate copolymer having an ethylene content of 60 to 98 mol %, and(C) at least 0.5% by weight of a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate component of at least 20%, the incorporation ratio of (C) based on the sum of (B) and(C) being not more than 38% by weight.The resin compositions of the present invention have markedly improved flexibility without deteriorating transparency and gas barrier properties as compared with conventional saponified products of ethylene-vinyl acetate copolymers.Type: GrantFiled: September 21, 1990Date of Patent: January 21, 1992Assignee: Kuraray Co., Ltd.Inventors: Sumio Itamura, Tohei Moritani
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Patent number: 5069946Abstract: This invention provides a gas-barrier multilayered packaging material which comprises an outer layer of a composition comprising 55-97 wt % of an EVCOH and 45-3 wt % of a resin selected from the group consisting of polyamide, polyolefin, polyester and polycarbonate and an inner layer comprising a hydrophobic thermoplastic resin having a low moisture permeability; and further provides a gas-barrier multilayered packaging material which comprises an outer layer comprising a resin layer having a moisture permeability (measured at 40.degree. C., 90% RH) of at least 40 g/m.sup.2 day, an intermediate layer of a composition comprising 55 to 97% by weight of an EVOH and 45 to 3% by weight of a resin selected from the group consisting of polyamide, polyolefin, polyester and polycarbonate and an inner layer comprising a hydrophobic thermoplastic resin layer having a moisture permeability lower than that of the outer layer.Type: GrantFiled: December 21, 1990Date of Patent: December 3, 1991Assignee: Kuraray Co., Ltd.Inventors: Tohei Moritani, Susumu Fukutome, Yasuo Motoishi, Hidemasa Oda
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Patent number: 5034281Abstract: The present invention provides resin compositions comprising a blend of two different saponified products of ethylene-vinyl acetate copolymers. The composition is much improved compared to a single EVOH in flexibility without adversely affecting the transparency and gas barrier property. Laminate films comprising at least one layer of said composition are excellent in resistance to dropping shock, ability to prevent air-back, skin-pack adaptability and shrink-packaging capability.Type: GrantFiled: September 10, 1990Date of Patent: July 23, 1991Assignee: Kuraray Co., Ltd.Inventors: Akihiko Kawasaki, Tohei Moritani
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Patent number: 4999229Abstract: This invention provides a gas-barrier multilayered packaging material which comprises an outer layer of a composition comprising 55-97 wt % of an EVOH and 45-3 wt % of a resin selected from the group consisting of polyamide, polyolefin, polyester and polycarbonate and an inner layer comprising a hydrophobic thermoplastic resin having a low moisture permeability; and further provides a gas-barrier multilayered packaging material with comprises an outer layer comprising a resin layer having a moisture permeability (measured at 40.degree. C., 90% RH) of at least 40 g/m.sup.2 day, an intermediate layer of a composition comprising 55 to 97% by weight of an EVOH and 45 to 3% by weight of a resin selected from the group consisting of polyamide, polyolefin, polyester and polycarbonate and an inner layer comprising a hydrophobic thermoplastic resin layer having a moisture permeability lower than that of the outer layer.Type: GrantFiled: December 29, 1988Date of Patent: March 12, 1991Assignee: Kuraray Co., Ltd.Inventors: Tohei Moritani, Susumu Fukutome, Yasuo Motoishi, Hidemasa Oda
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Patent number: 4960639Abstract: Provided are multilayered containers comprising a layer of a composition comprising a gas barrier resin, particularly ethylene-vinyl alcohol copolymer, incorporating an inorganic powder such as mica, and a layer of a composition comprising a thermoplastic resin incorporating an inorganic powder such as mica. The containers are excellent in gas barrier properties, particularly in gas barrier properties after being retorted, while showing very little deformation during retort treatment, and further excellent in mechanical strengths.Type: GrantFiled: February 23, 1989Date of Patent: October 2, 1990Assignee: Kuraray Co., Ltd.Inventors: Hidemasa Oda, Tohei Moritani, Satoshi Hirofuji, Kenji Okuno
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Patent number: 4929482Abstract: The present invention provides a heat-resistant container comprising an ethylene-vinyl alcohol copolymer layer and a crystalline polyester layer. In particular, when an ethylene-vinyl alcohol copolymer containing a drying agent is used, the obtained container is both ovenable and retortable, thereby being highly useful.Type: GrantFiled: July 14, 1988Date of Patent: May 29, 1990Assignee: Kuraray Co., Ltd.Inventors: Tohei Moritani, Hidemasa Oda, Toshiaki Sato, Taichi Negi, Keiji Matsumura, Syuji Kawai, Nobuo Tanaka, Satoshi Hirofuji
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Patent number: 4792484Abstract: A composition comprising a matrix of an ethylene-vinyl alcohol copolymer having dispersed therein a granular drying agent in a particulate state, wherein the volume-area average diameter of the grains of drying agent having a long dia meter of not less than 10.mu. is not greater than 30.mu.. A multi-layer structure comprising layers of such a composition. The gas barrier property of the multi-layer structure is not substantially reduced after a retort treatment and thus, the multi-layer structure is extremely useful for packaging of food, especially packaging of retorted food.Type: GrantFiled: May 13, 1987Date of Patent: December 20, 1988Assignee: Kuraray Co., Ltd.Inventor: Tohei Moritani
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Patent number: 4774114Abstract: An injection stretch blow container consisting of a combination of 97 to 70 parts by weight of saturated polyester and 3 to 30 parts by weight of a saponification product of an ethylene-vinyl acetate copolymer, said container having many areas, particularly at the body wall portion of said container in each of which areas substantially two-dimensional thin layers of said saponification product of said ethylene-vinyl acetate copolymer are laminated in parallel to the wall surface of said container in a matrix of saturated polyester, said saponification product of said ethylene-vinyl acetate copolymer in said area (20.times.20.mu.; vertical section or longitudinal section of the body wall of said container) is 0.001 to 1 .mu.m in average thickness and at least 5 in average aspect ratio and the laminated structural index represented by the following formula is at least 5:Laminated structural index ##EQU1## wherein L.sub.Type: GrantFiled: March 23, 1987Date of Patent: September 27, 1988Assignee: Kuraray Co., Ltd.Inventors: Tohei Moritani, Syuji Kawai, Kunihiko Shimamura, Toshiaki Sato
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Patent number: 4613644Abstract: A resinous composition composed of a thermoplastic resin, a saponified product of ethylene-vinyl acetate copolymer, and a low-molecular salt or oxide containing at least one element selected from Groups I to III of the Periodic Table. The composition provides molded items which are free of fish eyes and superior in gas barrier properties.Type: GrantFiled: March 6, 1985Date of Patent: September 23, 1986Assignee: Kuraray Co., Ltd.Inventors: Tohei Moritani, Kyoichiro Ikari
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Patent number: 4311805Abstract: A water-soluble cationic copolymer and methods for producing the same is disclosed which comprises comonomer units respectively represented by the formulae: ##STR1## wherein R.sup.1 is H or lower alkyl; B is ##STR2## R.sup.2, R.sup.3 and R.sup.4 are each independently lower alkyl or lower alkyl which contain a substituent; X is an anion capable of forming a salt with the ammonium nitrogen; and A is a group which links the nitrogen atom in B to the amide nitrogen atom.These copolymers are used in preparing paper strength additives.Type: GrantFiled: July 14, 1980Date of Patent: January 19, 1982Assignee: Kuraray Company, LimitedInventors: Tohei Moritani, Junnosuke Yamauchi, Makoto Shiraishi
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Patent number: 4308189Abstract: Cationic emulsions are obtained by the emulsion polymerization or copolymerization of ethylenically unsaturated monomers such as vinyl acetate, etc. in the presence of a cationic group-modified polyvinyl alcohol (PVA). Typical cationic group-modified PVA are the modified PVA's which contain a copolymeric unit having one of the following formulas: ##STR1## wherein R.sup.1 is H or lower alkyl; B is ##STR2## R.sup.2, R.sup.3 and R.sup.4 are each lower alkyl (substituted or unsubstituted) and X is an anion forming a salt with the ammonium N; and A is an inert bivalent organic group linking the N atom in B to the N atom in the amide group; ##STR3## wherein, in formulas (II) and (III), R.sup.5, R.sup.6 and R.sup.7 are each H, lower alkyl or phenyl; R.sup.8 is lower alkyl; and Y is an anion forming a salt with the imidazolinium N atom. Particularly desirable are the cationic group-modified PVA's containing the copolymeric unit (I) wherein A is ##STR4## R.sup.2, R.sup.3 and R.sup.Type: GrantFiled: September 29, 1980Date of Patent: December 29, 1981Assignee: Kuraray Company, LimitedInventors: Tohei Moritani, Takeshi Moritani, Junnosuke Yamauchi, Yoshinari Tanaka, Makoto Shiraishi
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Patent number: 4172930Abstract: A size for textile fiber which comprises a modified polyvinyl alcohol type resin obtainable by the alkali saponification of a copolymer comprising a vinyl ester and an ethylenically unsaturated dicarboxylic acid substantially free from the monoester, diester and anhydride as essential and predominant copolymeric units. The size has excellent adhesive and cohesive strengths with respect to textile fibers as well as superior desizing properties and workability.Type: GrantFiled: March 7, 1978Date of Patent: October 30, 1979Assignee: Kuraray Co., Ltd.Inventors: Koichi Kajitani, Tohei Moritani, Koji Moritani, Makoto Shiraishi