专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2002227040A POLYESTER FIBER 审中-公开
公开(公告)号：JP2002227040A
公开(公告)日：2002-08-14
申请号：JP2001388607
申请日：2001-12-21
申请人： KURARAY CO
发明人： NAKAMU SHIGEKI , YOSHIOKA KENICHI , HIRAKAWA SEIJI , TANAKA KAZUHIKO , KAWAMOTO MASAO , SUGO NOZOMI , MIGAKI ATSUKO , TANIGUCHI TOSHIRO
IPC分类号： D01F6/84 , D01F8/14 , D02G3/04
摘要： PROBLEM TO BE SOLVED: To obtain a polyester fiber having not only excellent dyeability and deep colorability but also high shrinkage/high shrinkage stress characteristics and extremely excellent light resistance and fastness of dyeing. SOLUTION: This polyester fiber is a conjugate yarn comprising a polyester copolymerized with 2-20 mol% of a compound (e.g. tricyclodecanedimethanol) having the following structural formula (1) (R1 to R10 are each a group selected from an ester-forming functional group, a hydrogen atom and an alkyl group and one or two of R1 to R10 are each an ester-forming functional group; x is 0 or 1; y is an integer satisfying 1

2. 发明专利

JPH07133509A POLYESTER-BASED YARN HAVING EXCELLENT DARK COLORABILITY AND PRODUCTION THEREOF 失效
公开(公告)号：JPH07133509A
公开(公告)日：1995-05-23
申请号：JP27827393
申请日：1993-11-08
申请人： KURARAY CO
发明人： HIRAKAWA SEIJI , YOSHIOKA KENICHI , TANAKA KAZUHIKO , KAWAMOTO MASAO , NAKAMU SHIGEKI
IPC分类号： D01F6/62 , D01F6/84 , D01F6/92 , D06M11/00 , D06M11/38 , D06M101/00 , D06M101/16 , D06M101/30 , D06M101/32
摘要： PURPOSE:To obtain the yarn having excellent dark colorability and durability by copolymerizing a polyester comprising ethylene terephthalate as a repeating unit with a specific alicyclic compound, forming fine unevenness on the surface of the yarn. CONSTITUTION:A polyester comprising ethylene terephthalate as a repeating unit is mixed, for example, before polycondensation reaction, with 2-20 mol % of an alicyclic compound of formula I ((m) is 0, 1 or 2) and/or formula II (R is H or a lower alkyl; (n) is 0, 1 or 2) based on a dicarboxylic acid component constituting the polyester and 0.5-10 wt.% of inorganic particles (preferable example, colloidal silica) eluting in an alkali, having

3. 发明专利

JPH0643301A OPTICAL PARTS 失效
公开(公告)号：JPH0643301A
公开(公告)日：1994-02-18
申请号：JP21863192
申请日：1992-07-23
申请人： KURARAY CO
发明人： NAKAMU SHIGEKI , MATSUMOTO MITSUO
IPC分类号： G02B1/04 , G02B5/18
摘要： PURPOSE:To provide the optical parts having small double refractions and excellent heat resistance and the high adhesion of a photosensitive resin layer by providing the surface of a base material consisting of a resin specified in plural structural units with the photosensitive resin layer. CONSTITUTION:The surface of the base material consisting of the resin which consists of the structural units I to III respectively expressed by formula II to formula III and in which the molar fraction x of the structural unit I is substantially equal to the total molar fraction y+z of the molar fraction y of the structural unit II and the molar fraction z of the structural unit III is provided with the photosensitive resin layer. In the formulas, n is 0, 1 or 2; A is =40mol.% and =1mol.% and

4. 发明专利

JPH049803A DIFFRACTION GRATING 失效
公开(公告)号：JPH049803A
公开(公告)日：1992-01-14
申请号：JP11199290
申请日：1990-04-27
申请人： KURARAY CO
发明人： NAKAMU SHIGEKI , FUJISAWA KATSUYA , ICHIMURA EIJIRO
IPC分类号： G02B5/18 , G02B27/46
摘要： PURPOSE:To obtain the diffraction grating which has near IR absorptivity and excellent water resistance and moisture resistance and is adequate for use as an optical low-pass filter by forming a grid-like rugged structure on the main surface of a substrate consisting of a resin having the near IR absorptivity. CONSTITUTION:This diffraction grating is constituted by forming the grid-like rugged structure 2 on the main surface of the substrate 1 consisting of the resin having the near IR absorptivity. A transparent resin into which a near IR absorbent is incorporated may be used as the resin having the near IR absorptivity. Heteropolycyclic dyes stuff, such as pentacene derivaties, and anthraquinone dyes stuff, such as 1, 4, 5, 8-tetrachloroanthaquinone, are exemplified as the near IR absorbent. The diffraction grating which has the near IR absorptivity and the excellent water resistance and moisture resistance and is adequate for use as the optical low-pass filter is obtd. in this way.

5. 发明专利

JPH02179941A OPTICAL INFORMATION RECORDING MEDIUM AND ITS PRODUCTION 失效
公开(公告)号：JPH02179941A
公开(公告)日：1990-07-12
申请号：JP33544388
申请日：1988-12-29
申请人： KURARAY CO
发明人： ICHIMURA EIJIRO , NAKAMU SHIGEKI
IPC分类号： G11B23/40 , G11B7/24 , G11B7/26
摘要： PURPOSE:To enable visual check of a specified pattern on the surface of a recording medium without causing any influence of the formed pattern on recording/reproducing characteristics by making difference in intensity or color of reflected or diffracted light in the area corresponding to the pattern from other area. CONSTITUTION:If the fine signal patterns 5 in a macroscopic area 7 corresponding to the prescribed pattern 2 are made different in either shape or size from other signal patterns, diffraction effect in the area 7 differs from that in the other area to give different intensity or color of reflected or diffracted light from light in other area. If a photosensitive resin is provided on this substrate ad exposed to light, first to form uneven surface state and second to form the specified pattern, the projections or recessions in the pattern area differ from those in other area in shape or size. By this method, the obtd. optical information recording medium can have patterns of letters or images which can be visually checked without causing any trouble on recording/reproducing by an optical head.

6. 发明专利

JPH0292682A OPTICAL RECORDING MEDIUM 失效
公开(公告)号：JPH0292682A
公开(公告)日：1990-04-03
申请号：JP24782188
申请日：1988-09-30
申请人： KURARAY CO
发明人： ONO KOJI , NAKAMU SHIGEKI , ISHII MASAKI , SAITO KOICHI , IKEDA MINORU
IPC分类号： B41M5/26 , G11B7/24 , G11B7/243 , G11B7/244
摘要： PURPOSE:To obtain high reflectivity, high contrast, and to improve durability, weather resistance by forming a recording layer of an optically reflecting layer made of a thin metal film and a light absorbing layer on a nitrocellulose layer. CONSTITUTION:A nitrocellulose layer is formed on a substrate, an optically reflecting layer and a light absorbing layer are sequentially laminated to form a recording layer. When a light such as a laser light is radiated, the absorbing layer absorbs a recording light to rise at its temperature in case of melting, thereby thermally conducting or directly heating the nitrocellulose layer. Thus, the cellulose layer serves as an initiator to deform the recording layer, thereby causing recording. Thus, the boundary of bits becomes clear by the cellulose layer. Since an optically reflecting layer is provided, an optically recording layer having features of high reflectivity and high contrast is obtained.

7. 发明专利

JPH07229020A POLYESTER FIBERS OF HIGH SHRINKAGE STRESS AND PRODUCTION THEREOF 失效
公开(公告)号：JPH07229020A
公开(公告)日：1995-08-29
申请号：JP20541594
申请日：1994-08-30
申请人： KURARAY CO
发明人： NAKAMU SHIGEKI , YOSHIOKA KENICHI , HIRAKAWA SEIJI , TANAKA KAZUHIKO , KAWAMOTO MASAO , SUGO NOZOMI , MIGAKI ATSUKO , TANIGUCHI TOSHIRO
IPC分类号： D01F6/84 , D01F6/62 , D03D27/00
摘要： PURPOSE:To obtain polyester fiber having not only high shrinkage but also high shrinkage stress and showing excellent dye color deepness and high color fastness. CONSTITUTION:The fibers are composed of a polyester which has the ethylene terephthalate as the main recurring unit and contains the compound bearing the cyclohexane skeleton in the range of from 5 to 30 mole % based on the total acid components. This polyester fibers are characterized by having the dry-heat shrinkage at 180 deg.C of over 20%, the dry-heat max. shrinkage stress of over 250mg/de, and the humid-heat shrinkage of over 15% at 98 deg.C.

8. 发明专利

JPH07189036A POLYESTER CONJUGATE FIBER 失效
公开(公告)号：JPH07189036A
公开(公告)日：1995-07-25
申请号：JP32686993
申请日：1993-12-24
申请人： KURARAY CO
发明人： NAKAMU SHIGEKI , YOSHIOKA KENICHI , TANAKA KAZUHIKO , HIRAKAWA SEIJI
IPC分类号： D01F6/84 , D01F8/14
摘要： PURPOSE:To provide a polyester conjugate fiber lowered in the quantity of light reflected from the surface of the fiber not only to improve the color depth of the fiber but also to improve the dyeability of the fiber without deteriorating the excellent original performance of the polyethylene terephthalate fiber. CONSTITUTION:The characteristic of the conjugate fiber comprising a polyester A containing ethylene terephthalate units as main repeating units as a core component and a polyester B containing ethylene terephthalate units as main repeating units and copolymerized with 5-30mol.% of cyclohexanedicarboxylic acid as a sheath component comprises that the glass transition temperature of the component B is lower than the glass transition temperature of the polyester A.

9. 发明专利

JPH05288904A 失效
公开(公告)号：JPH05288904A
公开(公告)日：1993-11-05
申请号：JP11416592
申请日：1992-04-06
申请人： KURARAY CO
发明人： NAKAMU SHIGEKI
IPC分类号： G02B3/00 , G03F7/20
摘要： PURPOSE:To form a lens pattern (optical component) for improving the numerical aperture of a liquid crystal panel, a CCD area sensor, etc., with good reproducibility and productivity by precisely controlling a lens sectional shape at the time of exposure. CONSTITUTION:When a pattern consisting of many small lens groups is formed on a photosensitive resin film, exposure is carried out twice by using two kind of photomasks 15A and 15B which differ in the area of parts corresponding to the small lenses. A 1st exposure is performed with good resolution by using the 1st photomask 15A which is large in the area of the parts corresponding to the small lenses and a 2nd exposure is performed with low resolution by using the 2nd photomask 15B which is small in the area of the parts corresponding to the small lenses. The photomasks are replaced between the 1st exposure and 2nd exposure. Consequently, the specific lens pattern can be formed without making the lens shape uneven nor forming a flat part.

10. 发明专利

JPH04309954A PATTERN FORMING METHOD 失效
公开(公告)号：JPH04309954A
公开(公告)日：1992-11-02
申请号：JP10396091
申请日：1991-04-08
申请人： KURARAY CO
发明人： NAKAMU SHIGEKI , WATANABE MUTSUJI , ICHIMURA EIJIRO
IPC分类号： G03F7/004 , G03F7/027 , G03F7/031 , G03F7/40
摘要： PURPOSE:To obtain a pattern having a surface relief structure by partially irradiating a thin film of a photosensitive resin consisting of a specific polymer and compound with ultraviolet ray, by removing unreacted compound with a specific solvent and by irradiating the full surface with ultraviolet ray. CONSTITUTION:The thin film of the photosensitive resin composition consisting of a polymer A containing 2-100mol% structure unit expressed by the formula I, 0-98mol% structure unit expressed by the formula II and a compound B selected from a group of aromatic aldehyde and aromatic keton is formed. In the formula I, X is hydrogen atom or alkyl group, Y is cycloalkenyl group or the like. And in the formula II, X is hydrogen atom or alkyl group, Y is phenyl group or the like. Next, the thin film is partially irradiated with ultraviolet wave corresponding the the desired pattern and unreacted compound B is removed from the thin film with the solvent which does not dissolve the polymer A. After that, the full surface of the thin film is irradiated with ultraviolet wave. In this way, refractive index of the exposed part becomes higher than that the unexposed part and heat resistant pattern is formed.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式