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公开(公告)号：FR2604279A1
公开(公告)日：1988-03-25
申请号：FR8712888
申请日：1987-09-17
Applicant: SONY CORP
Inventor： NITO KEIICHI , NAGAI TOHRU , NOGUCHI TSUTOMU , MIYASHITA MAYUMI , SETO JUNETSU , KOHNO KATSUMI
Abstract: There is disclosed an optical information record medium having an optical information record layer on a transparent substrate, in which the transparent substrate is made of a resin material mainly consisting of a polycarbonate resin that contains no more than 4 wt % of low molecular weight fractions having a weight average measured with respect to a polystyrene molecular weight of no more than 3500, in order to avoid a double refraction of an optical information record medium resulting in an improved signal to noise ratio and having superior thermal-transformation resistance and impact resistance.
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公开(公告)号：GB2197345A
公开(公告)日：1988-05-18
申请号：GB8721956
申请日：1987-09-18
Applicant: SONY CORP
Inventor： NITO KEIICHI , NAGAI TOHRU , NOGUCHI TSUTOMU , MIYASHITA MAYUMI , SETO JUNETSU , KOHNO KATSUMI
Abstract: There is disclosed an optical information record medium having an optical information record layer on a transparent substrate, in which the transparent substrate is made of a resin material mainly consisting of a polycarbonate resin that contains no more than 4 wt % of low molecular weight fractions having a weight average measured with respect to a polystyrene molecular weight of no more than 3500, in order to avoid a double refraction of an optical information record medium resulting in an improved signal to noise ratio and having superior thermal-transformation resistance and impact resistance.
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公开(公告)号：DE3731514A1
公开(公告)日：1988-03-24
申请号：DE3731514
申请日：1987-09-18
Applicant: SONY CORP
Inventor： NITO KEIICHI , NAGAI TOHRU , NOGUCHI TSUTOMU , MIYASHITA MAYUMI , SETO JUNETSU , KOHNO KATSUMI
Abstract: Such as a magneto-optical recording disc, a write once optical disc or a compact disc, An optical information record medium, includes an optical information record layer on a transparent substrate which is made of a resin material consisting mainly of a polycarbonate resin that contains no more than 4 wt% of low molecular weight fractions having a weight average of no more than 3500, measured with respect to the molecular weight of polystyrene. Consequently, double refraction of the optical information record medium is avoided, resulting in an improved signal to noise ratio and in superior thermal-transformation resistance and impact resistance.
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公开(公告)号：DE60004728T2
公开(公告)日：2004-06-17
申请号：DE60004728
申请日：2000-05-26
Applicant: SONY CORP
Inventor： NOGUCHI TSUTOMU , MIYASHITA MAYUMI , KAMEI MIYUKI
Abstract: A recycling method which enables recycling of a high-quality regenerated styrene resin. A waste styrene resin material is dissolved in an organic solvent boiling at a temperature lower than 200 DEG C and having solubility not less than 15 wt% at room temperature to prepare a solution of the waste styrene resin material. The resulting solution is freed of volatile components on heating in vacuum to remove the organic solvent to set the amount of the residual solvent in the styrene resin to 0.4 wt% or less to recycle the resulting styrene resin as a regenerated styrene resin.
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公开(公告)号：CA2274397A1
公开(公告)日：1999-12-18
申请号：CA2274397
申请日：1999-06-11
Applicant: SONY CORP
Inventor： MIYASHITA MAYUMI , INAGAKI YASUHITO , WATANABE HARUO , NOGUCHI TSUTOMU
IPC: C08J11/08 , C08F112/08
Abstract: There is provided a processing method for effectively and promptly removing insoluble components contained in a solution of a styrene resin waste material to enable regeneration of high-quality regenerated styrene. To this end, a solution of the styrene resin waste material in an organic solvent is processed with, for example, a dehydrating agent, to remove insoluble components. The resulting clarified solution is degasified on heating in vacuum to remove the organic solvent for recycling the resulting mass as a regenerated styrene resin. The insoluble components include foreign matter, such as moisture, sludge and colorant agents. By this processing method, it becomes possible to recycle high-quality regenerated styrene.
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Patent Agency Ranking
公开(公告)号：DE3731514C2
公开(公告)日：1998-05-14
申请号：DE3731514
申请日：1987-09-18
Applicant: SONY CORP
Inventor： NITO KEIICHI , NAGAI TOHRU , NOGUCHI TSUTOMU , MIYASHITA MAYUMI , SETO JUNETSU , KOHNO KATSUMI
Abstract: There is disclosed an optical information record medium having an optical information record layer on a transparent substrate, in which the transparent substrate is made of a resin material mainly consisting of a polycarbonate resin that contains no more than 4 wt % of low molecular weight fractions having a weight average measured with respect to a polystyrene molecular weight of no more than 3500, in order to avoid a double refraction of an optical information record medium resulting in an improved signal to noise ratio and having superior thermal-transformation resistance and impact resistance.
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公开(公告)号：DE60004728D1
公开(公告)日：2003-10-02
申请号：DE60004728
申请日：2000-05-26
Applicant: SONY CORP
Inventor： NOGUCHI TSUTOMU , MIYASHITA MAYUMI , KAMEI MIYUKI
Abstract: A recycling method which enables recycling of a high-quality regenerated styrene resin. A waste styrene resin material is dissolved in an organic solvent boiling at a temperature lower than 200 DEG C and having solubility not less than 15 wt% at room temperature to prepare a solution of the waste styrene resin material. The resulting solution is freed of volatile components on heating in vacuum to remove the organic solvent to set the amount of the residual solvent in the styrene resin to 0.4 wt% or less to recycle the resulting styrene resin as a regenerated styrene resin.
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公开(公告)号：DE19927757A1
公开(公告)日：1999-12-23
申请号：DE19927757
申请日：1999-06-17
Applicant: SONY CORP
Inventor： NOGUCHI TSUTOMU , MIYASHITA MAYUMI , INAGAKI YASUHITO , WATANABE HARUO
Abstract: A recycling process for styrene polymer without the use of filtration involves contacting the polymer solution with a dehydration agent and/or electric field and removing insolubles and then solvent. A recycling process (I) for styrene polymers comprises dissolving the polymer in an organic solvent to remove insoluble material, contacting the solution with a dehydration agent, applying an electric field and contacting with an adsorption agent and finally removing the solvent from the polymer. Independent claims are included for an apparatus for the above process including separation units, and processes similar to that above but involving: (i) Contacting the solution with a dehydration agent as above, removing insoluble materials and finally removing the solvent from the polymer by heating and degassing (process (II)); and (ii) applying an electric field to the solution to remove insoluble materials and finally removing the solvent from the polymer by heating and degassing (process (III)); and (iii) contacting a polymer solution containing dyes with an adsorption agent, then removing the solvent from the polymer by heating and degassing (process (IV)).
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公开(公告)号：DE69127393T2
公开(公告)日：1998-03-26
申请号：DE69127393
申请日：1991-04-26
Applicant: SONY CORP
Inventor： NITO KEIICHI , MIYASHITA MAYUMI , MATSUI ERIKO , ARAKAWA SEIICHI
IPC: G02F1/133 , G02F1/1337 , G02F1/141 , G02F1/137
Abstract: A liquid crystal display device having fast response characteristics and enabling analog gray-scaleal display is provided. The liquid crystal display device is formed of a liquid crystal material having the chiral smectic C phase. The projection component on the substrates of the axial direction of a cone delineated by a liquid crystal molecule, and the projection component on the substrates of the axial direction of the liquid crystal molecule itself, are adapted to be coincident with the processing direction for uniaxial orientation of the substrates, this state being monostabled as the initial state. On application of an electrical field, the liquid crystal molecule is rotated along the cone and the apparent tilt angle as viewed on the substrate surface is continuously changed in accordance with the strength of the applied electrical field. The intensity of the transmitted light is increased continuously with increasing tilt angle to obtain the continuous gray-scale or analog gray-scale.
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公开(公告)号：DE69127393D1
公开(公告)日：1997-10-02
申请号：DE69127393
申请日：1991-04-26
Applicant: SONY CORP
Inventor： NITO KEIICHI , MIYASHITA MAYUMI , MATSUI ERIKO , ARAKAWA SEIICHI
IPC: G02F1/133 , G02F1/1337 , G02F1/141 , G02F1/137
Abstract: A liquid crystal display device having fast response characteristics and enabling analog gray-scaleal display is provided. The liquid crystal display device is formed of a liquid crystal material having the chiral smectic C phase. The projection component on the substrates of the axial direction of a cone delineated by a liquid crystal molecule, and the projection component on the substrates of the axial direction of the liquid crystal molecule itself, are adapted to be coincident with the processing direction for uniaxial orientation of the substrates, this state being monostabled as the initial state. On application of an electrical field, the liquid crystal molecule is rotated along the cone and the apparent tilt angle as viewed on the substrate surface is continuously changed in accordance with the strength of the applied electrical field. The intensity of the transmitted light is increased continuously with increasing tilt angle to obtain the continuous gray-scale or analog gray-scale.
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