Patents Assigned to Oji-Yuka Synthetic Paper Co., Ltd.
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Patent number: 6592971Abstract: An image-receiving film for printing and heat transfer having a support made of a thermoplastic resin film, and a coated layer having component (A) is provided, wherein (A) is an aqueous resin dispersion obtained by dispersing an olefin copolymer (a) having an unsaturated carboxylic acid or its anhydride in water using at least one agent (b) selected from the group consisting of a nonionic surface active agent, a nonionic water-soluble high molecular compound, a cationic surface active agent, and a cationic water-soluble high molecular compound, wherein the weight ratio of (a)/(b) is from 100/1 to 100/30 and (a) and (b) each have independently a mean particle size of not more than 5 &mgr;m.Type: GrantFiled: December 1, 2000Date of Patent: July 15, 2003Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Hisao Ochiai, Hisashi Tani, Hiroo Hayashi, Toshio Iwasaki, Mitsuo Tsuruoka
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Patent number: 6576325Abstract: Disclosed is a label having a base layer (A) of a uniaxially stretched film containing 55 to 95 wt % of a thermoplastic resin and an inorganic or organic fine powder having an average grain size of 0.2 to 2 &mgr;m in an amount more than 5 wt % and not more than 45 wt %; a surface layer (B) of a uniaxially stretched film provided on one surface of the base layer (A), containing 35 to 85 wt % of a thermoplastic resin and 15 to 65 wt % of an inorganic fine powder having an average grain size of 0.2 to 2 &mgr;m; and an adhesive layer (C) of a uniaxially stretched film provided on the opposite surface of the base layer (A), containing 90 to 99 wt % of a thermoplastic resin having a melting point of 80 to 140° C., and 1 to 10 wt % of an inorganic or organic fine powder having an average grain size of 0.7 to 3 &mgr;m.Type: GrantFiled: September 5, 2000Date of Patent: June 10, 2003Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Masaaki Yamanaka, Kazumasa Hirano
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Patent number: 6562451Abstract: A coated film comprises a thermoplastic resin support film (I), a primer coating layer (II) on at least one surface of the support (I), and an ink absorbing layer (III) comprising at least three kinds of inorganic pigments and a binder resin, coated onto the primer coating layer (II). The coated film of the present invention may be offset printed and printed with a thermal melt transfer or impact dot printer.Type: GrantFiled: December 4, 2000Date of Patent: May 13, 2003Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Yoshihisa Syoda, Hisashi Tani, Hiroo Hayashi
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Patent number: 6551671Abstract: An in-mold label comprising a thermoplastic resin film base layer comprising a thermoplastic resin as the main component (I) carrying printed matter on its front side and a heat sealable resin layer (II) formed on the back side of the base layer (I) and made of a resin composition comprising 55-90 wt % of a polyethylene, 5-40 wt % of a polyetheresteramide, 1-20 wt % of a modified low-molecular weight polyethylene, and 0-20 wt % of a polyamide resin.Type: GrantFiled: April 6, 1999Date of Patent: April 22, 2003Assignees: Oji-Yuka Synthetic Paper Co., Ltd., Sanyo Chemical Industries, Ltd.Inventors: Takatoshi Nishizawa, Masaki Shiina, Yasuhiro Ueda
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Patent number: 6534150Abstract: Disclosed is a stretched film of a thermoplastic resin comprising a stretched film base layer (A) containing 40 to 85 wt % of a thermoplastic resin and 60 to 15 wt % of an inorganic or organic fine powder; and a stretched film surface layer(B), being provided at least on one surface of said stretched film base layer (A), containing 30 to 90 wt % of a thermoplastic resin and 70 to 10 wt % of inorganic or organic fine powder having an average particle size smaller than that of the inorganic or organic fine powder contained in the stretched film base layer (A), and has a porosity of 5 to 60%. The stretched film of the thermoplastic resin has a high surface hardness, excellent processability in embossing and desirable ink adhesiveness, and can effectively be used in a variety of applications including building decorative.Type: GrantFiled: December 29, 2000Date of Patent: March 18, 2003Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Masaaki Yamanaka, Tokumi Chiba
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Patent number: 6465087Abstract: A fusion thermal transfer recording sheet having a base layer (A) of a uniaxially stretched film containing 40 to 85 wt % of a thermoplastic resin and 60 to 15 wt % of an inorganic or organic fine powder; and a surface layer (B) of a uniaxially stretched film, provided on at least one surface of the base layer (A), containing 30 to 90 wt % of a thermoplastic resin and 70 to 10 wt % of an inorganic fine powder which has an average grain size equals to or smaller than that of the inorganic or organic fine powder contained in the base layer (A) and has a grain surface modified by hydrophilic treatment is disclosed. The fusion thermal transfer recording sheet is excellent in applicability to color fusion thermal transfer recording, applicability to thermal transfer bar code recording under a hot and humid atmosphere, and in ink adhesiveness.Type: GrantFiled: February 27, 2001Date of Patent: October 15, 2002Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Masaaki Yamanaka, Kazuyuki Kimura
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Patent number: 6287684Abstract: Disclosed is a transparent film comprising a substrate layer (A) of a uniaxially stretched film containing 95 to 100 wt % of thermoplastic resin and 0 to 5 wt % of an inorganic or organic fine powder having an average particle size of 0.2 to 2 &mgr;m, a surface layer (B) of a uniaxially stretched film containing 85 to 99 wt % of a thermoplastic resin and 1 to 15 wt % of an inorganic fine powder having an average particle size of 0.7 to 3 &mgr;m and being provided on one surface of the substrate layer (A), and an adhesive layer (C) of a uniaxially stretched film containing 90 to 99 wt % of a thermoplastic resin having a melting point of 80 to 140° C. and containing 1 to 10 wt % of an inorganic or organic fine powder having an average particle size of 0.7 to 3 &mgr;m and being provided on the other surface of the substrate layer (A). The transparent label is characterized in that having an excellent transparency and suitability for in-mold forming.Type: GrantFiled: August 16, 2000Date of Patent: September 11, 2001Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Masaaki Yamanaka, Kazumasa Hirano
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Patent number: 6238785Abstract: This invention relates to a thermoplastic resin film permitting excellent paper feed and discharge and excellent transfer of offset printing ink and ink adhesion even under high humidity conditions in the summertime.Type: GrantFiled: October 3, 1997Date of Patent: May 29, 2001Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Kazuhisa Kitamura, Koichi Asami
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Patent number: 6217687Abstract: A process for treating a surface of a thermoplastic resin film (i) which includes subjecting the surface of the thermoplastic resin film (i) to a first oxidation treatment, coating the oxidized surface with a surface modifier, subsequently stretching the film, subjecting that surface of the thermoplastic resin film (i) which has been coated with the surface modifier to a second oxidation treatment, and then coating the oxidized surface with a surface modifier.Type: GrantFiled: April 2, 1999Date of Patent: April 17, 2001Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Ayako Shibata, Nobuhiro Shibuya
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Patent number: 6194506Abstract: A printing resin film excellent in ink dryability and transferability, and comprising a resin composition comprising (A) from 25 to 65% by weight of a calcium carbonate powder having an oil absorption of from 70 to 200 ml/100 g as determined by JIS-K5101-1991 and (B) from 35 to 75% by weight of a thermoplastic resin.Type: GrantFiled: October 13, 1998Date of Patent: February 27, 2001Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Hisao Ochiai, Nobuhiro Shibuya, Toshiyuki Hirabe
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Patent number: 6086987Abstract: A synthetic paper made of a stretched resin film; said stretched resin film being obtained by stretching a resin film having as a support a resin composition which contains: (A) from 30 to 80% by weight of a crystalline polyolefin resin; and (B) from 70 to 20% by weight of milled calcium carbonate particles at a temperature lower than the melting point of said crystalline polyolefin resin employed as the component (A); and an inkjet recording paper made by using this synthetic paper. Because of having projections of finely milled calcium carbonate particles with a hydrophilic surface around which a number of fine cracks are formed, the synthetic paper shows improved moisture absorptivity for water color inks and aqueous adhesives, quick drying properties and excellent printability.Type: GrantFiled: January 23, 1998Date of Patent: July 11, 2000Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Masaaki Yamanaka, Kazuyuki Kimura, Kazumasa Hirano
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Patent number: 6028028Abstract: Recording sheets are disclosed which comprise a support (I) having formed on a surface thereof an image-recording/receiving layer (II) selected from an ink-receiving layer (IIa) for receiving a water-based ink ejected by an ink-jet recording technique, a thermosensitive recording layer (IIb), a coating layer (IIc) for laser printing and a thermal transfer image-receiving layer (IId). The support (I) has a laminated structure comprising a plain weave fabric (A) and, bonded thereto with an adhesive, a water-proof stretched resin film (B) having a machine-direction Clark stiffness (S value) of from 8 to 300, a transverse-direction Clark stiffness of from 8 to 300 and a thickness of from 20 to 300 .mu.m. The image-recording/receiving layer (II) is provided on the support on the side where the stretched resin film layer (B) is present. The inventive recording sheets have a tough surface and have both excellent ink absorption and clarity of developed color.Type: GrantFiled: November 22, 1996Date of Patent: February 22, 2000Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventor: Katsukuni Nitta
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Patent number: 6013363Abstract: A laminate which contains the following layers:(I) a stretched microporous resin film base layer having an opacity of at least 80%;(Ia) a heat sealable adhesive resin layer on the back side of the base layer;(II) a gas barrier resin film layer on the surface side of the base layer; and(III) an inorganic oxide thin film layer on the surface side of the gas barrier resin film layer,wherein the laminate:(i) has a water vapor permeability of at most 5 g/m.sup.2 .multidot.24 hr, and(ii) has an oxygen permeability of at most 5 cc/m.sup.2 .multidot.24 hr.multidot.atm.The laminate is useful, for example, for packaging a variety of articles, e.g., edible products, in which taste and freshness are desirably preserved during transportation and storage thereof.Type: GrantFiled: March 17, 1998Date of Patent: January 11, 2000Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Isao Takahashi, Junichi Yasuda, Mitsuru Matsuyama
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Patent number: 6001165Abstract: A coating composition for a recording material and a process for producing the recording material are provided, wherein the coating composition includes an aluminum alkoxide, a binder and a hydrophilic solvent.Type: GrantFiled: June 24, 1998Date of Patent: December 14, 1999Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Nobuhiro Shibuya, Toshiyuki Hirabe, Koichi Asami, Masahiro Satoh, Hajime Kanbara
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Patent number: 5939181Abstract: A porous molded article having microvoids therein which comprises a stretched product of a resin molded material made up of, as the base material, an olefinic resin composition containing from 95 to 50% by weight of a crystalline olefinic resin component (A) and from 5 to 50% by weight of a polymer of a cyclic olefin having a weight average molecular weight of not less than 1,000 and less than 10,000 and a glass transition point of from 180 to 400.degree. C. component (B).Type: GrantFiled: September 10, 1997Date of Patent: August 17, 1999Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Yuuta Kumano, Mitsutoshi Aritomi, Kenji Takasaki, Osamu Nishizawa, Nobuhiro Shibuya, Hisao Ochiai, Kenji Nakajima
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Patent number: 5871829Abstract: The present invention provides a novel pressure-sensitive adhesive label which curls little even under the coldest conditions and which has as a surface material a microporous stretched resin film obtained by stretching a crystalline polyolefin resin film containing an inorganic fine powder, a pressure-sensitive adhesive layer provided on one side of the surface material and a release paper provided on the pressure-sensitive adhesive layer, where the microporous stretched resin film satisfies the following physical properties (1) and (2):(1) the linear thermal expansion coefficient in a machine direction at -10.degree. C. (JIS K-7197) is from 10 to 70 .mu.m/m.multidot..degree.C.; and(2) the linear thermal expansion coefficient in the machine direction at 0.degree. C. is from 10 to 75 .mu.m/m.multidot..degree.C.Type: GrantFiled: January 15, 1997Date of Patent: February 16, 1999Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Takatoshi Nishizawa, Yasuo Iwasa, Akihiko Ohno
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Patent number: 5871833Abstract: A forgery-preventive fretwork paper comprising a support layer and an engraving coating layer, the support layer being a stretched laminate which comprises a biaxially stretched propylene resin film layer as a base layer and, laminated thereto on each of front and back sides thereof, a uniaxially stretched propylene resin film layer containing fine inorganic powder, wherein said support layer has (1) an opacity (JIS P-8138) of from 50 to 100% and (2) a density (JIS P-8188) of from 0.70 to 1.4 g/cm.sup.3, and the paper bearing an engraving extending into the engraving coating layer or to one of the uniaxially stretched films of the support layer.Type: GrantFiled: January 13, 1997Date of Patent: February 16, 1999Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Motoshi Henbo, Toshiyuki Hirabe
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Patent number: 5834098Abstract: A laminate comprising a thermoplastic resin film having thereon a coating layer containing (A) 100 parts by weight of an antistatic agent comprising a water-soluble quaternary nitrogen-containing polymer, (B) 10 to 600 parts by weight of a polyethyleneimine polymer selected from the group consisting of polyethyleneimine, alkyl-modified polyethyleneimine, poly(ethyleneimine-urea), and an ethyleneimine adduct of polyaminepolyamide, and (C) 25 to 1000 parts by weight of a polyalkylene ether polymer selected from the group consisting of polyethylene glycol, polypropylene glycol, an ethylene oxide-propylene oxide copolymer, and derivatives thereof, each having a molecular weight of 200 to 20,000. The laminate has excellent antistatic properties and offset printability.Type: GrantFiled: June 19, 1997Date of Patent: November 10, 1998Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Kazuhisa Kitamura, Koichi Asami
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Patent number: 5811163Abstract: An in-mold label which has a thermoplastic resin film base layer (I) having printed matter on its front side and, formed on the back side of the thermoplastic resin base layer (I), a heat sealable resin layer (II) having a lower melting point than the constituent resin of the thermoplastic resin film base layer (I), the constituent resin of the heat sealable resin layer (II) having as its main component an ethylene/.alpha.-olefin copolymer obtained by copolymerizing from 40 to 98 wt % ethylene and from 60 to 2 wt % of an .alpha.-olefin having from 3 to 30 carbon atoms using a metallocene catalyst.Type: GrantFiled: August 13, 1996Date of Patent: September 22, 1998Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Akihiko Ohno, Takatoshi Nishizawa, Masaki Shiina, Junichi Yasuda, Hajime Ikeno, Keiko Shichijo
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Patent number: 5800909Abstract: A sheet for an illuminated signboard is described which has as a base a composite sheet which is a plain weave fabric (I) having laminated on one or both sides thereof a microporous film (II) which is a stretched thermoplastic resin film containing fine white inorganic particles, where the sheet for an illuminated signboard satisfies the following requirements (1) to (4):(1) it has an opacity of from 80 to 100%;(2) it has a whiteness of from 85 to 100%;(3) it has a total light beam average reflectance of from 12 to 40%; and(4) it has a total light beam average transmittance of from 70 to 95%.Type: GrantFiled: May 16, 1997Date of Patent: September 1, 1998Assignee: Oji-Yuka Synthetic Paper Co., Ltd.Inventors: Katsukuni Nitta, Kazuyo Senga