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1. 发明专利

JP2000319364A HIGH-VISCOSITY POLYETHYLENE NAPHTHALATE RESIN, ITS PRODUCTION AND MOLDING PRODUCT COMPRISING THE RESIN 失效
公开(公告)号：JP2000319364A
公开(公告)日：2000-11-21
申请号：JP13380099
申请日：1999-05-14
申请人： KANEBO LTD , KANEBO SYNTHETIC FIBERS LTD
发明人： ITO YUMI , HASHIMURA TETSUTARO , YAMAMOTO MASAKI
IPC分类号： C08J5/00 , C08G63/18 , C08G63/189 , C08L67/02
摘要： PROBLEM TO BE SOLVED: To obtain a polyethylene naphthalate resin not raising a melting point in part of the resin even by a high-temperature solid-phase polymerization, having excellent productivity and color tone of resin. SOLUTION: This polyethylene naphthalate resin comprises 2,6- naphthalenedicarboxylic acid as a main acid component and ethylene glycol as a main glycol component and has 0.65-1.2 intrinsic viscosity. When the resin is heated from 25 deg.C at 10 deg.C/minute by a scanning calorimeter, the peak temperature of an initially observed endothermic temperature is >=245 deg.C. When dissolved in a mixed solvent of phenol/1,1,2,2-tetrachloroethane of 60/40 (weight ratio) in 1 g/deciliter concentration at 130 deg.C, the resin is dissolved within two hours.

2. 发明专利

JPH11335469A RESIN MOLDED MATERIAL, STRETCHED MOLDED MATERIAL AND FILM 失效
公开(公告)号：JPH11335469A
公开(公告)日：1999-12-07
申请号：JP15988798
申请日：1998-05-25
申请人： KONISHIROKU PHOTO IND , KANEBO SYNTHETIC FIBERS LTD , KANEBO LTD
发明人： TAKADA MASATO , EZURE HIDETOSHI , ONUMA KENJI , KURACHI IKUO , ITO YUMI , HASHIMURA TETSUTARO , YAMAMOTO MASAKI
IPC分类号： C08J5/00 , B29C55/12 , B29K67/00 , B29L7/00 , C08J5/18 , C08L67/02
摘要： PROBLEM TO BE SOLVED: To obtain a polyester resin molded material, stretched and molded material, film, etc., eliminating defects caused by using a polyester resin as a raw material, excellent in transparency, mechanical strength and heat resistance, having a good molding property and suitably utilized for a bottle, film, etc. SOLUTION: This resin molded material is obtained by mixing two kinds of the same or different kinds of polyester resins having >=0.2 and =0.1 and =10 wt.% and

3. 发明专利

JPH11198227A RESIN MOLDED BODY, ORIENTED MOLDED ITEM AND FILM 失效
公开(公告)号：JPH11198227A
公开(公告)日：1999-07-27
申请号：JP1491898
申请日：1998-01-09
申请人： KONISHIROKU PHOTO IND , KANEBO SYNTHETIC FIBERS LTD , KANEBO LTD
发明人： TAKADA MASATO , EZURE HIDETOSHI , ONUMA KENJI , KURACHI IKUO , ITOU YUMI , HASHIMURA TETSUTARO , YAMAMOTO MASAKI
IPC分类号： C08J5/18 , B29C55/12 , B29K67/00 , B29L7/00 , C08G63/189
摘要： PROBLEM TO BE SOLVED: To provide a polyester molded body, an orientated molded item, and a film suitably utilizable for a bottle film or the like having no defects of employing polyester resin and having superior moldability having excellent transparency, mechanical strength, and heat resistivity. SOLUTION: The resin molded body is formed through melt-molding by blending two similar or dissimilar polyester resins having intrinsic viscosity of 0.2 or more and 1.2 or less and an intrinsic viscosity difference of 0.1 or more and 1.0 or less. In these polyester resin, it is preferable to blend polyester resin having a low intrinsic viscosity by 10 wt.% or more and 70 wt.% or less.

4. 发明专利

JP2000109548A POLYETHYLENE NAPHTHALATE RESIN FOR BOTTLE AND PRODUCTION OF THE RESIN 失效
公开(公告)号：JP2000109548A
公开(公告)日：2000-04-18
申请号：JP27973298
申请日：1998-10-01
申请人： KANEBO LTD , KANEBO SYNTHETIC FIBERS LTD
发明人： ITO YUMI , HASHIMURA TETSUTARO , YAMAMOTO MASAKI
IPC分类号： B65D1/00 , B29C49/00 , B29K67/00 , B65D1/09 , C08G63/189 , C08G63/78 , C08G63/86 , C08J5/00
摘要： PROBLEM TO BE SOLVED: To obtain a PEN(polyethylene naphthalate) resin suitable as a material for bottles with favorable hue, yellowing little when dried at high temperatures. SOLUTION: This resin is a polyester composed of an acid component predominant in naphthalenedicarboxylic acid and a glycol component predominant in ethylene glycol, being characteristic in containing calcium compound, magnesium compound, phosphorus compound and germanium compound in respective specific amounts meeting a specified requirement. It is preferable that this resin is

5. 发明专利

JP2004107505A Method for producing foamed and molded product 有权
公开(公告)号：JP2004107505A
公开(公告)日：2004-04-08
申请号：JP2002272704
申请日：2002-09-19
申请人： Kanebo Ltd , Kanebo Synthetic Fibers Ltd , カネボウ合繊株式会社 , カネボウ株式会社
发明人： KUBO TAKAYOSHI , YAMA SHINKO , NAKAE TSUNAHIRO , HASHIMURA TETSUTARO
IPC分类号： C08J9/228 , B29C44/00 , B29K67/00 , C08L101/16
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a foamed and molded product comprising a polylactic acid or a composition thereof, having excellent functions such as light weight and mechanical properties and also having excellent dimensional stability in a condition of high temperature and high humidity (60°C×80% RH) which is a problem in practical use.
SOLUTION: The method for producing the foamed and molded product comprises holding biodegradable beads comprising the polylactic acid having (95/5)-(60/40) or (40/60)-(5/95) ratio of L-isomer to D-isomer, or a composition thereof in a gas atmosphere of ≥0.105 MPa, and introducing the resultant beads to a mold to mold the beads in the mold.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2001040101A POLYETHYLENE NAPHTHALATE RESIN MOLDED ARTICLE AND PRODUCTION THEREOF 失效
公开(公告)号：JP2001040101A
公开(公告)日：2001-02-13
申请号：JP2000073559
申请日：2000-03-16
申请人： KANEBO LTD , KANEBO SYNTHETIC FIBERS LTD
发明人： ITO YUMI , HASHIMURA TETSUTARO , YAMAMOTO MASAKI
IPC分类号： B65D1/00 , B29C49/64 , B29C71/02 , B29K67/00 , B29L22/00 , B65D1/09 , C08J5/00 , C08J7/00
摘要： PROBLEM TO BE SOLVED: To produce a resin molded article that will not develop crazing when stored in ethyl acetate at a specified temperature for a specified period of time by using a polyester resin composed of a naphthalenedicarboxylic acid as a main acid component and ethylene glycol as a main glycol component. SOLUTION: A polyethylene naphthalate(PEN) resin molded article comprises a polyester resin composed of a naphthalenedicarboxylic acid as a main acid component and ethylene glycol as a main glycol component and will not develop crazing when stored in ethyl acetate at 40 deg.C for 12 hr. For example, the PEN resin molded article is produced by feeding a PEN resin into an injection molding machine to form a preform and heat treating a molded article produced by e.g. blow molding the preform after heating, preferably at a temperature of 50-120 deg.C for not less than 0.1 hr. Alternatively, it is preferable to produce a PEN resin molded article at a mold temperature of 50-120 deg.C. The PEN resin molded article is useful as a container for storing the contents including an organic solvent such as a bottle for nail color or the like.

7. 发明专利

JP2000154259A MOLDED RESIN ITEM, STRETCH-FORMED ITEM, AND FILM 失效
公开(公告)号：JP2000154259A
公开(公告)日：2000-06-06
申请号：JP26327099
申请日：1999-09-17
申请人： KONISHIROKU PHOTO IND , KANEBO LTD , KANEBO SYNTHETIC FIBERS LTD
发明人： ONUMA KENJI , EZURE HIDETOSHI , KURACHI IKUO , TAKADA MASATO , ITO YUMI , HASHIMURA TETSUTARO , YAMAMOTO MASAKI
IPC分类号： C08J5/00 , B29C55/12 , C08G63/02 , C08G63/85 , C08J5/18 , G03C1/795
摘要： PROBLEM TO BE SOLVED: To obtain a molded item excellent in clarity, mechanical strengths, and heat resistance with a good moldability by melt molding a mixture which is prepared by mixing two polyesters each having a specified half-crystallizsation time (measured with a differential scanning calorimeter) with the difference between the half-crystallization times specified. SOLUTION: Two polyesters of the same or different kinds each having a half-crystallization time of 300 min or lower at 250 deg.C, the difference between the half-crystallization times being 5 min or higher, are mixed. The polyester resin is a mixture of a polyester resin prepared by using a germanium compound as the polymerization catalyst and a polyester resin prepared by using an antimony compound as the polymerization catalyst. Preferably the polyester resin is one mainly comprising polyethylene 2,6-naphthalate, Preferably, the intrinsic viscosities of the two polyester resins are each 0.3-1.2 and the difference between the intrinsic viscosities is 0.2-1.0.

8. 发明专利

JPH11152327A WATER-SOLUBLE POLYESTER COPOLYMER, AND FILM OR SHEET LAMINATING IT 失效
公开(公告)号：JPH11152327A
公开(公告)日：1999-06-08
申请号：JP32000797
申请日：1997-11-20
申请人： KANEBO LTD , KANEBO SYNTHETIC FIBERS LTD
发明人： ITOU YUMI , HASHIMURA TETSUTARO , YAMAMOTO MASAKI
IPC分类号： C08J5/18 , B32B27/36 , C08G63/189 , C08G63/688
摘要： PROBLEM TO BE SOLVED: To obtain a water-soluble copolymer which can give laminated films excellent in mutual sticking prevetiveness and adhesion to a functional layer comprising a hydrophilic resin, by selecting a copolymer wherein the dicarboxylic acid component comprises naphthalenedicarboxylic acid, a sulfonate- containing dicarboxylic acid, and an alicyclic dicarboxylic acid, and the glycol component contains an alicyclic diol. SOLUTION: The water-soluble polyester copolymer is obtained from a dicarboxylic acid component comprising (A) 20-60 mol.% naphthalenedicarboxylic acid and/or its esterifiable derivative, (B) 5-20 mol.% sulfonate-containing dicarboxylic acid and/or its esterifiable derivative, and (C) 30 mol.% or above alicyclic dicarboxylic acid and/or its esterifiable derivative (C) and a glycol component having a composition of (D) 20 mol.% or above, based on the total glycol component, alicyclic diol, and in which the sum of the mol.%, based on the total dicarboxylic acid component, component C and the mol.%, based on the total glycol component, component D is 50 mol.% or above.

9. 发明专利

JP2000007769A POLYESTER RESIN AND ITS MOLDED ARTICLE 失效
公开(公告)号：JP2000007769A
公开(公告)日：2000-01-11
申请号：JP10901099
申请日：1999-04-16
申请人： KANEBO LTD , KANEBO SYNTHETIC FIBERS LTD
发明人： ITO YUMI , HASHIMURA TETSUTARO , YAMAMOTO MASAKI
IPC分类号： B65D1/00 , B65D1/09 , C08G63/189 , C08J5/00
摘要： PROBLEM TO BE SOLVED: To obtain a resin, which is excellent in resistance to hydrolysis and moldable into a transparent bottle or container by specifying a type of main dicarboxylic acid component and a type of compound used at a specified ratio among diol components. SOLUTION: A polyester resin comprises a compound of formula I as a main dicarboxylic acid component, and a compound of formula II present in not less than 50 mole % of diol components. In the formulas, R1 to R8 are such that any two of them independently represent a carboxy group, and the others independently represent hydrogen or the like; and R9 to R14 independently represent hydrogen or the like. The substituent other than the carboxy group of the dicarboxylic acid is preferably a small-sized substituent such as hydrogen, a methyl group or the like, and 2,2-naphthalenedicarboxylic acid is preferred. The diol component should preferably be made of a compound having three atoms between two OH groups, which constitute a main chain when a polyester is formed after condensation with a dicarboxylic acid component and wherein the atoms are made of carbon. 1,3-Propanediol is preferred. The resin is adapted for use as a drink bottle or the like, which does not suffer whitening by application of an alkaline detergent and for which washing and re-use are necessary.

10. 发明专利

JPH09188751A PRODUCTION OF POLYETHYLENE NAPHTHALATE 失效
公开(公告)号：JPH09188751A
公开(公告)日：1997-07-22
申请号：JP1710196
申请日：1996-01-05
申请人： KANEBO LTD
发明人： TAMURA KAZUTOSHI , OZAWA YOSHIMICHI , HASHIMURA TETSUTARO , NAITO HIROSHI
IPC分类号： C08G63/189 , C08G63/181 , C08G63/78 , C08G63/82
摘要： PROBLEM TO BE SOLVED: To produce a polyethylene naphthalate resin, having a low content of by-products and good in color tone by carrying out the polycondensation of a dialkyl dicarboxylate with a glycol in the presence of a specific transesterification catalyst and a specified polycondensation catalyst. SOLUTION: The transesterification of (A) a dialkyl naphthalenedicarboxylate with (B) ethylene glycol is carried out and the polycondensation is then conducted. In the process, (C) one or more transesterification catalysts selected from respective compounds of Ca, Mg and Mn, (D) an diethylene glycol suppressant comprising (i) potassium acetate and (ii) a phosphorus compound and (E) a polycondensation catalyst comprising an antimony compound are added to the reactional system so as to satisfy formulas I to TV [M is the amount of the added component (C) expressed in terms of the metallic atoms (g atoms/t); K is the amount of the added component (i) expressed in terms of the K atoms (g atoms/t); P is the amount of the added component (ii) expressed in terms of the P atoms (g atoms/t); B is the amount of the added component (E) expressed in terms of the antimony atoms (g atoms/t)].

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