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1. 发明专利

JP2004066767A Manufacturing method of plastic molded body 审中-公开
公开(公告)号：JP2004066767A
公开(公告)日：2004-03-04
申请号：JP2002232674
申请日：2002-08-09
申请人： Daicel Chem Ind Ltd , ダイセル化学工業株式会社
发明人： ONISHI MASAYA , HIRAISHI MASANORI
IPC分类号： B29C47/68 , B29L7/00 , B29L11/00
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a plastic molded body using an accurately controlled structure of a polymer blend as a molding material.
SOLUTION: The structure of a polymer blend (the particle diameter of a dispersing phase, distribution and dispersing state of the particles) is filtered by a specific filter and accurately controlled. The filter has a sintered structure wherein a plurality of metallic fiber filters 2 different in filtration accuracy are laminated. These plurality of metallic fiber filters 2 may have an orderly layered structure so that the flowing direction of a molten resin becomes higher in filtering accuracy from upstream toward downstream. Further, the filter comprises a first filter layer provided at least with one metallic fiber filter and a second filter layer 3 provided with at least one filter having a woven structure. The first filter layer may comprise a plurality of metallic fiber filters 2.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2003306577A Cellulose resin composition 审中-公开
标题翻译：纤维素树脂组合物
公开(公告)号：JP2003306577A
公开(公告)日：2003-10-31
申请号：JP2002111727
申请日：2002-04-15
申请人： Daicel Chem Ind Ltd , ダイセル化学工業株式会社
发明人： HAYASHI MASAKI , ONISHI MASAYA
IPC分类号： C08L1/10
摘要： PROBLEM TO BE SOLVED: To provide a resin composition whose dispersed phase can be deformed into an anisotropic shape, even upon using a wide variety of thermoplastic resins as the dispersed phase, and a molded product having excellent optical characteristics which is molded from this resin composition. SOLUTION: In the resin composition, a continuous phase is composed of a plasticized cellulose derivative which may be a cellulose ester, especially at least one chosen from cellulose acetate, cellulose acetate propionate and cellulose acetate butyrate. In the resin composition, the dispersed phase is deformed into the anisotropic shape by applying a shear force via a molding process such as extrusion molding or injection molding and dispersed in the continuous phase. The cellulose derivative may be plasticized with a plasticizer. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使使用各种各样的热塑性树脂作为分散相，也可以分散相变形为各向异性的树脂组合物，以及具有优异的光学特性的成型体，其由该树脂组合物。解决方案：在树脂组合物中，连续相由可塑纤维素衍生物组成，纤维素衍生物可以是纤维素酯，特别是选自乙酸纤维素，乙酸丙酸纤维素和乙酸丁酸纤维素中的至少一种。在树脂组合物中，分散相通过挤出成型或注射成型等成型加工剪切力而变形为各向异性形状，分散在连续相中。纤维素衍生物可以用增塑剂增塑。版权所有（C）2004，JPO

3. 发明专利

JP2002216521A SURFACE LIGHT SOURCE AND DISPLAY UNIT USING THE SAME 审中-公开
公开(公告)号：JP2002216521A
公开(公告)日：2002-08-02
申请号：JP2001318256
申请日：2001-10-16
申请人： DAICEL CHEM
发明人： HIRAISHI MASANORI , ONISHI MASAYA
IPC分类号： G02B5/02 , F21V8/00 , F21Y103/00 , G02F1/1335 , G02F1/13357 , G09F9/00 , G09F9/35
摘要： PROBLEM TO BE SOLVED: To provide a surface light source unit of simple structure that illuminates a display panel of a liquid crystal display device uniformly, even though equipped with a tubular light source having anisotropy in luminance distribution. SOLUTION: This surface light source unit arranges an anisotropic light scattering film 7 composed of a continuous phase (crystalline resin) and dispersing phase (amorphous resin) having mutually different refractive indexes between a light guide member 5 where the light from the tubular light source 4 enters through the side and goes out from the flat outgoing surface and the display panel 2 illuminated by the light from the outgoing surface of the light guide member, and illuminates the display panel 2 uniformly. In the light scattering characteristics F (θ) that show the relations between a scattering angle θ and intensity F of scattered light, when taking the light scattering characteristics of X axis direction as Fx (θ) and taking the light scattering characteristics of Y axis direction as Fy (θ), the anisotropic light scattering film satisfies the following equation. Fy (θ)/Fx (θ)>5 (θ=4-30 deg.), Fy (θ)/Fx (θ)>10 (θ=2-30 deg.) Moreover, when θ=0-30 deg., the light scattering characteristics Fy (θ) decrease gently with the increase of θ, and typically, Fy (0 deg.)/Fy (30 deg.)

4. 发明专利

JP2002179928A HEAT-SENSITIVE, THERMOPLASTIC RESIN COMPOSITION 失效
公开(公告)号：JP2002179928A
公开(公告)日：2002-06-26
申请号：JP2000383412
申请日：2000-12-18
申请人： DAICEL CHEM
发明人： MIKI AKIKO , ONISHI MASAYA , YABUI AKIHIRO
IPC分类号： C08L101/00 , C08L25/12 , C08L53/00 , C08L67/00
摘要： PROBLEM TO BE SOLVED: To provide a heat-sensitive, thermoplastic resin composition processable by a general molding method such as injection molding, extrusion molding and the like, excellent in mechanical characteristics, applicable to various fields and having good transparency in the room temperature region though turned opaque at a higher temperature. SOLUTION: The heat-sensitive, thermoplastic resin composition comprises a noncrystalline polyester resin (A) and a vinyl cyanide/aromatic vinyl copolymer (B). In another embodiment, the heat-sensitive, thermoplastic resin composition comprises a noncrystalline polyester resin (A), a vinyl cyanide/aromatic vinyl copolymer (B), and an epoxidized diene-based block copolymer (C) and/or a diene-based block copolymer (D).

5. 发明专利

JP2000241609A OPTICAL SCATTERING SHEET 失效
公开(公告)号：JP2000241609A
公开(公告)日：2000-09-08
申请号：JP4457899
申请日：1999-02-23
申请人： DAICEL CHEM
发明人： HIRAISHI MASANORI , NISHIDA YOSHIYUKI , ONISHI MASAYA
IPC分类号： B32B7/02 , G02B5/02 , G02F1/1335 , G09F9/00
摘要： PROBLEM TO BE SOLVED: To provide an optical scattering sheet for use in a liquid crystal display, especially in a reflection type liquid crystal display device. SOLUTION: This optical scattering sheet is used on a substrate of an upper electrode of a reflection type liquid crystal element disposed on the substrate of the upper electrode of a reflection type liquid crystal formed by enclosing liquid crystal 1c between the upper electrode 1b having a transparent electrode and a lower electrode 1d having light reflectivity. In this case, thermoplastic resin and/or particles are dispersed in a thermoplastic transparent resin base by a fusing film, and a forward scattering function is produced by a fusing film. The thickness is 30-300 μm, the total ray transmissivity of optical characteristic is 85% or more, and haze value is in the range of 10-80%.

6. 发明专利

JP2004101641A Anisotropic diffusing film and system provided therewith 有权
公开(公告)号：JP2004101641A
公开(公告)日：2004-04-02
申请号：JP2002260189
申请日：2002-09-05
申请人： Daicel Chem Ind Ltd , ダイセル化学工業株式会社
发明人： HIRAISHI MASANORI , ONISHI MASAYA
IPC分类号： G02B5/02 , F21V8/00 , F21Y103/00 , G02B5/30 , G02F1/1335 , G06F3/033 , G06F3/041 , H01H13/70 , H01H13/712
摘要： PROBLEM TO BE SOLVED: To provide a light diffusing film which can improve the display grade of a surface light source device and liquid crystal display device by using anisotropic light diffusion.
SOLUTION: A diffusing film 7 has a diffusion layer consisting of: a continuous phase of resin (a cyclic polyolefin system resin, etc.) of a low intrinsic double refraction index; and a dispersion phase of resin (non-crystalline polyester, styrene system resin, etc.) of a refractive index different from the refractive index of the continuous phase. The mean aspect ratio of the dispersion phase is greater than 41 in order to impart anisotropy to transmitted light. The diffusion film 47 is applicable to a display device 41 consisting of a liquid crystal display unit 42 and a surface light source unit 43. The unit 43 is provided with a tubular light source 44, a light guide member 45, the optical diffusion film 47, and a prism sheet 48. The film 47 diffuses the light from the light source (fluorescent lamp) of the surface light source device (back light) to uniformly illuminate the unit 42.
COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2000344942A CELLULOSIC DERIVATIVE RESIN COMPOSITION, FILM OR SHEET COMPRISING THE SAME 失效
公开(公告)号：JP2000344942A
公开(公告)日：2000-12-12
申请号：JP15889499
申请日：1999-06-07
申请人： DAICEL CHEM , DAICEL CRAFT KK
发明人： ONISHI MASAYA , KUMAGAI AKIHIKO
IPC分类号： C08J5/18 , C08L1/00 , C08L53/00
摘要： PROBLEM TO BE SOLVED: To obtain the subject composition excellent in impact resistance dimensional accuracy, cutting workability, etc., and useful as a film or a sheet by adding an epoxidized diene-based block copolymer besides a conventionally used plasticizer to a cellulosic derivative resin. SOLUTION: This composition is obtained by compounding (A) 100 pts.wt. of a celulosic derivative resin (e.g. cellulose acetate resin) with (B) 5-70 pts.wt. of a plasticizer and (C) 0.5-50 pts.wt. of an epoxidized diene-based block copolymer. The component C is preferably prepared by epoxidizing a block copolymer of (i) a vinyl-aromatic compound (e.g. styrene) and (ii) a conjugated diene compound (e.g. butadiene) or obtained by partially hydrogenating the above block copolymer and then epoxidizing the partially hydrogenated block copolymer. The copolymerization ratio of the components (i) to (ii) is preferably (5:95) to (70:30) (weight ratio) and the number-average molecular weight of the block copolymer is preferably 5,000-600,000.

8. 发明专利

JP2000343604A HEAT-SHRINKABLE FILM AND ITS PRODUCTION 失效
公开(公告)号：JP2000343604A
公开(公告)日：2000-12-12
申请号：JP16123099
申请日：1999-06-08
申请人： DAICEL CHEM
发明人： ONISHI MASAYA
IPC分类号： B65B53/00 , B29C55/14 , B29C61/06 , B65D65/02 , C08J5/18 , C08L25/06
摘要： PROBLEM TO BE SOLVED: To provide a heat-shrinkable film in which natural shrinkability and defective break resistance are excellent. SOLUTION: The heat-shrinkable film consists of composition of polystyrene resin and an epoxidized diene-based block copolymer. Or, the heat-shrinkable film consists of composition of 70-95 wt.% polystyrene and 30-5 wt.% epoxidized diene-based block copolymer or consists of composition in which the epoxidized diene-based block copolymer is blended with polystyrene resin. Coefficient of heat shrinkage in the lateral direction for 80 deg.C×10 seconds is 30-40% and coefficient of heat shrinkage in the lateral direction for 30 deg.C×30 days is

9. 发明专利

JP2000191870A VINYL CHLORIDE RESIN COMPOSITION 失效
公开(公告)号：JP2000191870A
公开(公告)日：2000-07-11
申请号：JP36986598
申请日：1998-12-25
申请人： DAICEL CHEM
发明人： ONISHI MASAYA
IPC分类号： C08L27/06 , C08F8/08 , C08F220/12 , C08F297/04
摘要： PROBLEM TO BE SOLVED: To obtain a composition having high tensile strength and flexibility and excellent flowability by blending a specific amount of each of a rubber polymer whose main components are a (meth)acrylic ester monomer, a styrene monomer and a vinyl cyanide monomer, and an epoxidated diene block copolymer with a vinyl chloride resin. SOLUTION: 0.5-50 pts.wt. of a rubber polymer (B) and 0.5-30 pts.wt. of an epoxidated diene block copolymer (C) are blended with 100 pts.wt. of a vinyl chloride resin (A). As the component A, a vinyl chloride resin having an average degree of polymerization of 600-1,700 is preferable and a copolymer is further preferable. The component B is a copolymer obtained by polymerizing 30-80 wt.% of a (meth)acrylic ester monomer, 5-50 wt.% a styrene monomer, 4-30 wt.% of a vinyl cyanide monomer and 0.25-10 wt.% of a crosslinker and partially can include a block polymer. The component C is obtained by epoxydating a vinyl aromatic compound-conjugate diene block copolymer.

10. 发明专利

JPH11245293A METHOD FOR ROUGHENING SURFACE OF THERMOPLASTIC RESIN SHEET 失效
公开(公告)号：JPH11245293A
公开(公告)日：1999-09-14
申请号：JP6949498
申请日：1998-03-03
申请人： DAICEL CHEM , DAICEL CRAFT KK
发明人： HIRAISHI MASANORI , TAKAHASHI KEIJI , ONISHI MASAYA
IPC分类号： B29C59/02
摘要： PROBLEM TO BE SOLVED: To produce a small quantity of a surface roughened thermoplastic resin sheet, to enable multikind and small-quantity production and to make a delamination phenomenon hard to generate even when a thermoplastic resin sheet is repeatedly used. SOLUTION: In a method for roughening the surface of a thermoplastic resin sheet A by superposing a thermoplastic resin seet B having at least one roughened surface on a thermoplastic resin sheet A so that the roughened surface of the sheet B comes into contact with the surface of the sheet A to press the sheets A, B under heating and subsequently removing the sheet B to transfer the roughened surface shape of the sheet B to the surface of the sheet A, the sheet B is a biaxlally stretched polyethylene phthalate sheet wherein a value of a degree of crystallization X (unit %) represented by the formula: X (degree of crystallization)= ρc (ρ-ρa /ρ(ρc -ρa )}×100 (wherein ρ is the density of a resin forming the biaxially stretched polyethylene terephthalate sheet; and ρa and ρc are each the densities of the amorphous part and crystalline part of the resin) is above 51% but below 73%.

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