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1. 发明专利

JPH0388837A RESIN COMPOSITION AND LAMINATE 失效
公开(公告)号：JPH0388837A
公开(公告)日：1991-04-15
申请号：JP22669689
申请日：1989-08-31
申请人： KURARAY CO
发明人： AOYAMA AKEMASA , UEMURA JUNICHI
IPC分类号： B32B27/28 , C08G59/00 , C08G59/20 , C08G59/32 , C08J5/18 , C08L23/26 , C08L29/04 , C08L63/00
摘要： PURPOSE:To obtain a resin composition having excellent transparency, gas barrier properties, falling impact resistance, flexing resistance, etc., by blending a specific saponified ethylenevinyl acetate copolymer with a specific amount of epoxy group-containing olefin-based copolymer. CONSTITUTION:(A) 60-95wt.%, preferably 70-90wt.% saponified ethylenevinyl acetate copolymer having 20-60mol%, preferably 25-55mol% ethylene content and >=95mol%, preferably >=98mol% degree of saponification is blended with (B) 40-5wt.%, preferably 30-10wt.% epoxy group-containing olefin-based copolymer having 700-10,000, preferably 1,000-6,000 epoxy group equivalent.

2. 发明专利

JPH02196821A CONTAINER COMPRISING POLYESTER HAVING EXCELLENT GAS BARRIER PROPERTY 失效
公开(公告)号：JPH02196821A
公开(公告)日：1990-08-03
申请号：JP1693689
申请日：1989-01-25
申请人： KURARAY CO
发明人： KASHIWAMURA TSUGUFUMI , MATSUMURA KEIJI , TOKOO MAKIO , UEMURA JUNICHI , AOYAMA AKEMASA
IPC分类号： A47G19/00 , B65D1/00 , B65D1/02 , B65D81/24 , C08G63/66 , C08G63/672
摘要： PURPOSE:To obtain the title polymer suitable for containers requiring gas barrier properties, having excellent gas barrier properties by copolymerizing specific repeating units. CONSTITUTION:(A) 0-95mol% phthalic acid (derivative) containing preferably >=80mol% terephthalic acid or isophthalic acid and (B) 5-100mol% dicarboxylic acid (preferably) such as 2,2-bis(p-carboxymethoxyphenyl) propane are polymerized with (C) a straightchain aliphatic glycol such as ethylene glycol to give the aimed polyester comprising repeating units shown by formula I (m is 2-10) and formula II and having preferably 0.3-1.5 intrinsic viscosity.

3. 发明专利

JPH02150420A POLYESTER HAVING EXCELLENT GAS BARRIER PROPERTY 失效
公开(公告)号：JPH02150420A
公开(公告)日：1990-06-08
申请号：JP30472488
申请日：1988-11-30
申请人： KURARAY CO
发明人： KASHIWAMURA TSUGUFUMI , MATSUMURA KEIJI , TOKOO MAKIO , UEMURA JUNICHI , AOYAMA AKEMASA
IPC分类号： C08J5/18 , B65D1/00 , B65D1/09 , C08G63/66 , C08G63/672 , C08L67/02
摘要： PURPOSE:To obtain the title polyester having excellent heat resistance and gas barrier properties by using phthalic naphthylenedicarboxylic acid or an ester forming derivative thereof as a dicarboxylic acid component and a glycol component having a specific repeating unit as a glycol component. CONSTITUTION:The aimed polyester consisting of repeating units shown by formula I and formula II (R is group shown by formula III, group shown by formula IV or mixture thereof; m is 2-10), comprising 0-95mol% group shown by formula I and 100-5mol% group shown by formula II. Preferably >=80mol% group shown by formula I is expressed by unit shown by formula V. The polyester has preferably >=60 deg.C glass transition temperature and 0.3-1.5 intrinsic viscosity.

4. 发明专利

JP2000182418A LIGHTING SYSTEM WITH LIGHT DIFFUSION PLATE 失效
公开(公告)号：JP2000182418A
公开(公告)日：2000-06-30
申请号：JP35732298
申请日：1998-12-16
申请人： KURARAY CO
发明人： UEMURA JUNICHI , MATSUZAKI ICHIRO
IPC分类号： G02B6/00 , F21V5/02 , F21V5/04 , G02B5/02
摘要： PROBLEM TO BE SOLVED: To enhance light transmittance and light diffusion characteristics by installing a light diffusion plate, in which unevenness structure for refracting or diffracting transmitted light is formed on at least one main surface, and a light source. SOLUTION: A light diffusion plate 1 is formed into a plate shape or a sheet shape, and unevenness structure 2 for refracting or diffracting light transmitting the light diffusion plate 1 is formed on at least one surface of two main surfaces of the light diffusion plate 1. A light source 3 is arranged in the vicinity of the light diffusion plate 1, and light is refracted or diffracted with the recessed and projecting structure 2 to prevent a see-through state and enhance light transmittance. As the light diffusion plate 1, a substance having higher light- transmittance of light transmitting from the light source side to a viewer side than that of light transmitting from the viewer side to the light source side is used. Light transmittance of light reaching the viewer side from the light source side is enhanced, the light power consumption can be reduced. As the recessed and projecting structure, a lenticular lens state or prism state is formed.

5. 发明专利

JPH08267673A LAMINATE AND USE THEREFOR 失效
公开(公告)号：JPH08267673A
公开(公告)日：1996-10-15
申请号：JP12459796
申请日：1996-05-20
申请人： KURARAY CO
发明人： AOYAMA AKEMASA , UEMURA JUNICHI
IPC分类号： B32B27/08 , B29C49/22 , B32B27/28 , B32B27/32 , C08G59/20 , C08G59/32 , C08L29/04 , C08L63/00
摘要： PURPOSE: To provide a laminate having a good gas barrier property, extremely high pliability in comparison with a laminate employing EVOH monomer, and also having an anti-drop impact and air back flow preventive property, and a skin packaging and shrink film suitability. CONSTITUTION: The laminate includes a layer consisting of a resin composition layer of 60-95mol.% ethylene vinyl acetate copolymer saponificated matter (A) with an ethylene content of 20-60mol.% or more and a saponification degree of vinyl acetate ingredient of 95mol.% or more, and 40-5wt.% olefinic polymer (B) being epoxy equivalent and introducing an epoxy group of 700-10000, and carboxylic acid modified olefinic composition in adjacent with the resin composition layer.

6. 发明专利

JPH04110336A RESIN COMPOSITION AND MULTILAYER STRUCTURE PREPARED BY USING SAME 失效
公开(公告)号：JPH04110336A
公开(公告)日：1992-04-10
申请号：JP23176790
申请日：1990-08-31
申请人： KURARAY CO
发明人： AOYAMA AKEMASA , UEMURA JUNICHI , NEGI TAICHI , HIROFUJI SATOSHI
IPC分类号： B32B27/28 , C08L23/26 , C08L29/04
摘要： PURPOSE:To obtain a resin composition which can give a molding which, when stretched by heating, does not suffer problems of pinhole formation, cracking and formation of a locally thickened part and is excellent in gas barrier properties by mixing an ethylene/vinyl alcohol copolymer with a specified ethylene/ vinyl alcohol copolymer. CONSTITUTION:A resin composition comprising 90-10 pts.wt. ethylene/vinyl alcohol copolymer (A) of an ethylene content of 20-65mol% and 10-90 pts.wt. ethylene/vinyl alcohol copolymer (B) of an ethylene content of 20-65mol% and a syndiotacticity in terms of a diad of 55mol% or above. Copolymer (A) is an ordinary ethylene/vinyl alcohol copolymer prepared by saponifying an ethylene/vinyl acetate copolymer. It is particularly important that copolymer (B) has a syndiotacticity in terms of a diad of 55mol% or above. When the syndiotacticity is below 55, the gas barrier properties under high-humidity conditions are insufficient undesirably.

7. 发明专利

JP2000137122A PLASTIC SCINTILATION FIBER 失效
公开(公告)号：JP2000137122A
公开(公告)日：2000-05-16
申请号：JP32595098
申请日：1998-10-30
申请人： NISSEI ELECTRIC , KURARAY CO
发明人： OTANI MASAMICHI , UEMURA JUNICHI , SHINJI OSAMU
IPC分类号： G02B6/00
摘要： PROBLEM TO BE SOLVED: To provide a scintilation fiber which prevents the generation of crosstalks and is not accompanied by a degradation in detection efficiency. SOLUTION: This plastic scintilation fiber comprises a core which contains a first fluorescent agent for converting scintilation light to the longer wavelength side and a second fluorescent agent for converting the release light of the first fluorescent agent further to the longer wavelength side, an inner clad which is smaller in the refractive index than the core and contains a third fluorescent agent for converting the release light of the first fluorescent agent to a long wavelength and an outer clad which is smaller in the refractive index than the inner clad and contains a third fluorescent agent.

8. 发明专利

JP2000137078A SCINTILLATION FIBER PLATE 失效
公开(公告)号：JP2000137078A
公开(公告)日：2000-05-16
申请号：JP32595198
申请日：1998-10-30
申请人： NISSEI ELECTRIC , KURARAY CO
发明人： OTANI MASAMICHI , UEMURA JUNICHI , SHINJI OSAMU
IPC分类号： G01T1/00 , G01T1/20
摘要： PROBLEM TO BE SOLVED: To resolve the degradation of resolution or the lowering of sensitivity due to shortage of a light quantity by providing layers not transmitting X-rays and layers reflecting emitted light due to the scintillation fiber on the outer circumference of respective scintillation fibers. SOLUTION: A scintillation fiber plate 1 to be used for an X-ray detector is constituted so that layers 3 made of nickel or the like and not transmitting X-rays and reflecting layers made of aluminum or the like and reflecting emitted light due to scintillation fiber are provided on the outer circumference of many scintillation fibers arranged in parallel. By the layers 3 not transmitting X-rays 10, X-ray transmission to the adjoining scintillation fibers 2 can be prevented, and resolution can be raised. By the reflecting layers 4, the incidental emitted light exceeding the critical angle are also reflected in the scintillation fibers 2, and effectively utilized. Further it can be constituted so that the reflecting layers are provided on the incidental faces of X-rays of the scintillation fibers 2.

9. 发明专利

JPH04227905A ETHYLENE/VINYL ALCOHOL COPOLYMER, MOLDED ARTICLE AND LAMINATE 失效
公开(公告)号：JPH04227905A
公开(公告)日：1992-08-18
申请号：JP14111791
申请日：1991-05-15
申请人： KURARAY CO
发明人： UEMURA JUNICHI , AOYAMA AKEMASA , MARUYAMA HITOSHI , SATO TOSHIAKI , OKAYA TAKUJI
IPC分类号： C08F8/12 , B32B27/28 , C08F8/00 , C08F16/02 , C08F210/02 , C08F216/06
摘要： PURPOSE:To obtain an ethylene/vinyl alcohol copolymer improved in the resis tance to deterioration in gas barrier properties under high temperature and high humidity conditions without detriment to its gas barrier properties at low humidity, transparency, etc., by specifying its ethylene component content, syndiotacticity and intrinsic viscosity. CONSTITUTION:Ethylene is copolymerized with a vinyl ester of the formula (wherein R and R are each H or hydrocarbyl; and R is hydrocarbyl), e.g. vinyl pivalate, in the presence of a radical polymerization initiator (e.g. 2,2'- azobisisobutyronitrile), and the obtained copolymer is hydrolyzed. In this way, an ethylene/vinyl alcohol copolymer having an ethylene content of 10-70mol%, a syndiotacticity of 55mol% or above in terms of diad and an intrinsic viscosity of 0.05l.g above as measured in a mixed solvent of 85wt.% phenol and 15wt.% water at 30 deg.C is produced. This copolymer can be desirably used as an intermediate layer of a laminate for producing a container for retorting.

10. 发明专利

JPH04174710A ETHYLENE-VINYL ALCOHOL COPOLYMER BASED FIBER 失效
公开(公告)号：JPH04174710A
公开(公告)日：1992-06-22
申请号：JP29253890
申请日：1990-10-29
申请人： KURARAY CO
发明人： KAWAMOTO MASAO , AOYAMA AKEMASA , UEMURA JUNICHI , TANAKA KAZUHIKO , HIRAKAWA SEIJI
IPC分类号： C08L101/00 , C08F8/12 , D01F6/30 , D01F6/34 , D01F8/10
摘要： PURPOSE:To obtain the title fiber consisting of an ethylene-vinyl alcohol containing an ethylene component at a specific amount, having a syndiotacticity not smaller than definite value and improved in hot water resistance. CONSTITUTION:The objective fiber consisting of (A) an ethylene-vinyl alcohol copolymer having 30-70mol% content of ethylene component and >=55% syndiotacticity expressed in terms of diad and as necessary (B) other heat- meltable polymer. Furthermore, the component A is preferably exposed on (the part of) the surface of the above-mentioned fiber.

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