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公开(公告)号：JP2001294734A
公开(公告)日：2001-10-23
申请号：JP2000112933
申请日：2000-04-14
Applicant: TORAY INDUSTRIES
Inventor： KOJIMA HIROJI , CHIKUGI TOSHIHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a polyester composition and a film thereof which are excellent in moldability, thermal resistance and taste characteristics, can be manufactured particularly by fabrication, is excellent in adhesion to metallic plates, and is suitable for metallic cans. SOLUTION: The polyester composition contains 0.01-3.0 wt.% of a particle having an active hydrogen amount of 2×10-4-1×10-3 mol/g and an average primary particle size of 0.005 μm or more and less than 3.0 μm.
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公开(公告)号：JP2001261856A
公开(公告)日：2001-09-26
申请号：JP2000070083
申请日：2000-03-14
Applicant: TORAY INDUSTRIES
Inventor： CHIKUGI TOSHIHIRO , SASAMOTO FUTOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a polyester film which has few scratches on product and in little in defect optical, excellent in transparency and color tone, and can be applied to an optical device to furnish the product with excellent properties in the quality and yield of product. SOLUTION: The polyester film comprises a polyester resin and the particle A having an average particle size of 5-100 nm, and the content of the particle A is 0.005-5 wt.% in the film, monodisperse index of the particle A in 0.8 or above in the film, and the number rate of the parcle A is less than 1% in the film terms of an agglomerate formed by 10 or more of the particles; and the film has 20/m2 or below or optical defects.
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公开(公告)号：JP2001123082A
公开(公告)日：2001-05-08
申请号：JP30863499
申请日：1999-10-29
Applicant: TORAY INDUSTRIES
Inventor： CHIKUGI TOSHIHIRO , KOJIMA HIROJI , SASAMOTO FUTOSHI
IPC: B32B27/20 , C08J5/18 , C08K3/22 , C08L101/00 , C08L101/16
Abstract: PROBLEM TO BE SOLVED: To obtain a resin composition, especially, a polyester resin composition, having good frictional properties and having improved productivity and dispersedness in spite of containing particles in a high concentration. SOLUTION: This composition is a resin composition containing a resin and 0.01-70 wt.% particles based on a metal oxide, wherein at least the surface of each particle contains 0.001-5 mol%, based on the metal atoms (A) of the metal oxide, metal atoms (B) other than atoms A. It is desirable that the resin is a polyester. It is desirable that the particles are agglomerated silica particles, and the metal atom B is an aluminum atom. In this case, it is desirable that the agglomerated silica particles have a mean primary particle diameter of 5-30 nm and a mean secondary particle diameter of 0.2-20 μm. This composition is used to form, for example, a film or a laminated film containing at least one layer of the film.
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公开(公告)号：JP2000119495A
公开(公告)日：2000-04-25
申请号：JP29656998
申请日：1998-10-19
Applicant: TORAY INDUSTRIES
Inventor： CHIKUGI TOSHIHIRO , SHIMIZU YUZO , MORIMOTO TSUTOMU
Abstract: PROBLEM TO BE SOLVED: To obtain a compsn. having no coarse particles formed and being excellent in the clip property, wear resistance, electrical characteristics, drillability, fabricability as a metal-clad sheet, and flavoring property, by blending a thermoplastic polyester resin with hydroxyapatite particles having a specified particle dia. in a specific ratio. SOLUTION: A compsn. is obtained by blending 0.001-10 wt.% of hydroxyapatite particles having an average primary particle dia. of 5-200 nm, average secondary particle dia. of 0.1-10 μm, and a relative standard deviation of the secondary particle dia. of 0.95 or less. The hydroxyapatite pref. is such that the compsn. ratio satisfies Ca(PO4)l(OH)m(CO3)nYx [wherein Y is an anionic ion except for phosphoric acid, hydroxyl, and carbonic acid group ions; l is 0.4-0.6; m is 0.1-0.4; n is 0-0.2; x is 0-0.2; 3×l+m+2×n+z×x=2 (z is a valence of the anionic ion Y)]. A good action is obtained especially when n is 0.005-0.2 and/or x is 0.005-0.2. The hydroxyapatite pref. has a heat wt. loss of 2 wt.% or more.
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公开(公告)号：JPH11170282A
公开(公告)日：1999-06-29
申请号：JP36185197
申请日：1997-12-10
Applicant: TORAY INDUSTRIES
Inventor： CHIKUGI TOSHIHIRO , YASHIRO TOSHIYA , TSUKUDA AKIMITSU
Abstract: PROBLEM TO BE SOLVED: To enable good surface properties and flatness at a high speed by making a solvent having compatibility with a solvent used chiefly in an organic polymer solution exist between a support and an organic polymer solution film to be cast. SOLUTION: An organic polymer solution is extruded by a T-die 1, and it is supported by a cast drum 7. and a solvent which is not compatible with the organic polymer but is compatible with a solvent used chiefly in the organic polymer solution is made to exist between an organic polymer solution film 5 extruded from the T-die 1 by a solvent adding device B, which is installed upstream from the T-die 1 and made movable by a press mechanism 3 to make the adjustment of its position possible. It is contacted with the drum 7 to add the solvent onto a support. The solvent having compatibility is compatible completely with the solvent used chiefly in the organic polymer solution even when about 10 wt.% of the solvent is mixed.
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Patent Agency Ranking
公开(公告)号：JPH1058845A
公开(公告)日：1998-03-03
申请号：JP9923397
申请日：1997-04-16
Applicant: TORAY INDUSTRIES
Inventor： CHIKUGI TOSHIHIRO , SUEOKA MASANORI
IPC: B41M5/382 , B29C41/24 , B29C41/52 , B29C47/00 , B29K77/00 , B29L7/00 , B41M5/40 , B41M5/41 , B41M5/38
Abstract: PROBLEM TO BE SOLVED: To eliminate creases, folds and the like to be generated particularly remarkably in widening and realize the highly minute printing quality by forming a heat-sensitive transfer layer on one face of a base film composed of aromatic polyamide having the Young's modulus in the specified longitudinal direction. SOLUTION: Aromatic polyamide represented by the formula I and/or formula II (In the formulas, Ar1 , Ar2 and Ar3 represent aromatic uncles, R, R' and R" represent a functional group selected out of halogen, nitro, cyanogen, 1-4C alkyl, 1-3C aocoxy, trialkylsiril, oxyaryl, thioaryl and aryl, and (l), (m) and (n) represent 0-4 integer.) is used as a base film. The Young's modulus EMD in the longitudinal direction of the base film at the temperature of 20 deg.C and relative humidity of 60% is 6.86 GPa or more. Also the dimension variation rate after treating the base film at 200 deg.C for 10 minutes is preferably 2% or less.
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公开(公告)号：JPH09176306A
公开(公告)日：1997-07-08
申请号：JP28415096
申请日：1996-10-25
Applicant: TORAY INDUSTRIES
Inventor： CHIKUGI TOSHIHIRO , SUEOKA MASANORI , ITO NOBUAKI
IPC: C08J5/18 , B29C55/02 , B29K77/00 , B29L7/00 , B29L31/34 , C08G69/32 , C08G69/36 , G11B5/64 , G11B5/65 , G11B5/73 , G11B5/733 , G11B5/704
Abstract: PROBLEM TO BE SOLVED: To provide a film composed of an aromatic polyamide having a specific structural unit, having decreased moisture absorption while keeping various excellent properties and useful for a high-density magnetic recording medium, etc. SOLUTION: The objective film is composed of an aromatic polyamide containing, as main structural units, at least 3 structural units selected from the group A structural units expressed by the formula I and having mutually different aromatic nuclei, the group B structural units expressed by the formula II and having mutually different aromatic nuclei and the group C structural units expressed by the formula III (Ar1 to Ar3 are each a para-oriented aromatic nucleus; the compound of each group may be substituted with functional groups expressed by Ra to Rc such as nitro, cyano, a 1-4C alkyl or a 1-3C alkoxy); (k), (l) and (m) are each 0-4) (provided that at least two structural units having different principal aromatic nuclei are selected from the same group). The objective film has a moisture absorption of
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公开(公告)号：JPH09155970A
公开(公告)日：1997-06-17
申请号：JP26082396
申请日：1996-10-01
Applicant: TORAY INDUSTRIES
Inventor： SUEOKA MASANORI , CHIKUGI TOSHIHIRO , ITO NOBUAKI
Abstract: PROBLEM TO BE SOLVED: To provide a film having excellent rigidity and elongation characteristic, and capable of being adapted suitably to a magnetic recording medium. SOLUTION: This film consists mainly of an aromatic polyamide, and the tensile Young's modulus of the film in at least one direction at 20 deg.C and in a relative humidity of 60% is 800kg/mm or more, thus the aromatic polyamide film is made such that the ratio between the strength F1 of a 1% stretch and the strength F5 of a 5% stretch of the film in one direction satisfies a formula of F1/F5>=0.38.
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公开(公告)号：JPH09118079A
公开(公告)日：1997-05-06
申请号：JP22119096
申请日：1996-08-22
Applicant: TORAY INDUSTRIES
Inventor： CHIKUGI TOSHIHIRO , ITO NOBUAKI
Abstract: PROBLEM TO BE SOLVED: To provide a thermal transfer recording material which has highly minute print quality and is suitable for many times of printing. SOLUTION: In the thermal transfer recording material having a thermal transfer layer on one side of the base material consisting of an organic polymer body, when Young's modulus in the lengthwise direction at 20 deg.C and 60% RH is expressed as EMD and Young's modulus in the cross direction is expressed as ETD, the base material satisfies the following expressions, ETD>=EMD×1.1, EMD>=600kg/mm . Further, the coefficient of heat shrinkage at 200 deg.C for 10 minutes at least in one direction of the material is made to
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公开(公告)号：JPH0971669A
公开(公告)日：1997-03-18
申请号：JP15558096
申请日：1996-06-17
Applicant: TORAY INDUSTRIES
Inventor： CHIKUGI TOSHIHIRO , OKUBO KENICHI , ITO NOBUAKI
IPC: C08J5/18 , B29C31/00 , B29D7/01 , B29K67/00 , C08G69/00 , C08G69/32 , C08G73/10 , G11B5/73 , G11B5/704
Abstract: PROBLEM TO BE SOLVED: To obtain the subject film consisting of a specific organic polymer body, showing a prescribed curvature, regulating variations in its dimensional change accompanying to a change with time caused by its moisture absorption, having a stable output characteristic and suitable for a magnetic recording medium. SOLUTION: This film consists of an organic polymer body (suitably an aromatic polyamide or polyimide, e.g. having a repeating unit of the formula) having >=1wt.% equilibrium moisture content H (at 20 deg.C, 75%RH), shows
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