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1. 发明专利

JP2000094548A MULTILAYER CONTAINER 失效
公开(公告)号：JP2000094548A
公开(公告)日：2000-04-04
申请号：JP27126998
申请日：1998-09-25
申请人： UNITIKA LTD
发明人： YOSHIKAWA MASATAKE , TAMURA TSUNEO , IDA TAKASHI , FUJIMOTO KOJI , KOKURYO SACHIKO
IPC分类号： B65D1/00 , B32B1/02 , B32B27/32 , B32B27/34 , B65D1/09
摘要： PROBLEM TO BE SOLVED: To sterilize at a high temperature under a high pressure and charge a content at a high temperature with excellent heat resistance and gas barrier properties, by forming it of a non-halogen polyolefin layer and a polyamide layer reinforced by a silicate layer. SOLUTION: The multilayer container comprises (A) a non-halogen polyolefin layer, and (B) a polyamide layer reinforced by a silicate layer. A melt viscosity of the non-halogen polyolefin is preferably 0.5 to 60 g/10 min of a melt flow rate measured according to an ASTM D1238 (190 deg.C, and a load of 216 kgf). The polyamide is obtained by using a monomer such as a lactam, an aminocarboxylic acid, a diamine and a dicarboxylic acid (including a pair of salts of them) or the like by melt polymerization (or melt polycondensation) or a solid state polymerization. An amount of the silicate layer is preferably 0.1 to 30 wt.%. The container is obtained by, for example, heating a co-extruded multilayer sheet, and then deep drawing the sheet such as by vacuum molding, compression molding or the like.

2. 发明专利

JP2000086887A PLASTIC MAGNET COMPOSITION 失效
公开(公告)号：JP2000086887A
公开(公告)日：2000-03-28
申请号：JP25974098
申请日：1998-09-14
申请人： UNITIKA LTD
发明人： YOSHIKAWA MASATAKE , TAMURA TSUNEO , IDA TAKASHI , FUJIMOTO KOJI , KOKURYO SACHIKO
IPC分类号： C08K3/34 , C08L77/00
摘要： PROBLEM TO BE SOLVED: To obtain a composition excellent in flowability and crystallinity during molding and capable of giving a plastic magnet improved in magnetic characteristics and mechanical strengths by incorporating a polyamide resin having a specified terminal carboxyl concentration, a specified or lower relative viscosity with a layered silicate and a magnetic powder. SOLUTION: This composition comprises 100 pts.wt. polyamide resin (e.g. nylon 6) having a terminal carboxyl concentration adjusted to 40-150 meq/kg by the addition of e.g. benzoic acid and a relative viscosity of 2.3 or below (in 96% sulfuric acid in a concentration of 1 g/dl at 25 deg.C); 0.2-15 pts.wt. layered silicate; and 60-95 wt.%, based on the entire composition, magnetic powder (e.g. barium ferrite) having a particle diameter of 0.5-10 μm. If necessary, this composition may further be formulated with another thermoplastic resin, a plasticizer, a lubricant, etc. The layered silicate is exemplified by montmorillonite or swellable fluoromica. It is desirable that the layered silicate is used after it has been subjected to a swelling treatment for widening its interlayer distances with a swelling agent such as 12-aminododecane in order to improve the dispersibility of the layered silicate in the polyamide resin.

3. 发明专利

JPH11228817A HIGHLY GAS-BARRIERING POLYAMIDE RESIN COMPOSITION, ITS PRODUCTION, AND FILM AND CONTAINER USING THE SAME 失效
公开(公告)号：JPH11228817A
公开(公告)日：1999-08-24
申请号：JP3444798
申请日：1998-02-17
申请人： UNITIKA LTD
发明人： KOJIMA KAZUE , TAMURA TSUNEO , FUJIMOTO KOJI , KOKURYO SACHIKO
IPC分类号： B65D65/40 , C08G69/16 , C08K3/34 , C08L77/02
摘要： PROBLEM TO BE SOLVED: To obtain a nylon 6 resin composition, with a silicate of layered structure dispersed uniformly at the molecular level in a nylon 6 resin, and excellent in gas-barriering characteristics, mechanical strength and resistance to heat, and to provide a method for producing the same, and a film and container using the same. SOLUTION: This polyamide resin composition, high in gas-barriering characteristics and having an oxygen permeability of 2.4 mL.mm/m .24 h.atm or less at 23 deg.C and 100% RH, is obtained by polymerizing a mixture of a silicate of layered structure, having the following properties, and the monomer polymerizable into nylon 6 resin. The silicate properties are average particle diameter: 2 to 20 μm and maximum particle diameter: 30 μm or more, both determined by the laser-aided diffraction scattering method.

4. 发明专利

JPH0873710A REINFORCED POLYESTER RESIN COMPOSITION AND PREPARATION THEREOF 失效
公开(公告)号：JPH0873710A
公开(公告)日：1996-03-19
申请号：JP20853394
申请日：1994-09-01
申请人： UNITIKA LTD
发明人： YASUE KENJI , TAMURA TSUNEO , WATANABE YOSHITOSHI , KATAHIRA SHINICHIRO , YOSHIDA IZUMI
IPC分类号： C08K3/34 , C08L67/00 , C08L67/02
摘要： PURPOSE: To obtain a reinforced polyester resin compsn. capable of forming a molded product free of warpage and excellent in mechanical strength, toughness, heat resistance, dimensional stability and surface glass by polymerizing a polyester-forming monomer(s) in the presence of a swelling fluoromica mineral. CONSTITUTION: A polyester-forming monomer (s) in such an amt(s). as to form 100 pts.wt. polyester is polymerized in the presence of 0.01-100 pts.wt. swelling fluoromica mineral to obtain the desired resin compsn. The compsn. is a reinforced polyester compsn. comprising 100 pts.wt. polyester and 0.01-100 pts.wt. swelling fluoromica mineral. The swelling fluoromica mineral to be used is obtd. by heat-treating a mixture of talc with sodium and/or lithium silicofluoride or fluoride.

5. 发明专利

JPH0859822A MANUFACTURE OF REINFORCED POLYAMIDE RESIN COMPOSITION 失效
公开(公告)号：JPH0859822A
公开(公告)日：1996-03-05
申请号：JP19680694
申请日：1994-08-22
申请人： UNITIKA LTD
发明人： TAMURA TSUNEO , WATANABE YOSHITOSHI , KATAHIRA SHINICHIRO , YOSHIDA IZUMI
IPC分类号： C08G69/14 , C08G69/04 , C08G69/16 , C08K3/34 , C08L77/00 , C08L77/02
摘要： PURPOSE: To obtain a reinforced polyamide resin composition excellent in mechanical strengths, toughness, heat resistance, and dimensional stability without using a high-pressure polymerization method. CONSTITUTION: A polyamide monomer in such an amount that it can form 100 pts.wt. of a polyamide (nylon 6 or its copolymer) and a suspension or slurry that has been prepared by using a medium capable of swelling 0.01 to 100 pts.wt. of a swellable fluoromica mineral are mixed and the polyamide monomer is polymerized.

6. 发明专利

JPH04202359A RESIN COMPOSITION 失效
公开(公告)号：JPH04202359A
公开(公告)日：1992-07-23
申请号：JP33914190
申请日：1990-11-29
申请人： UNITIKA LTD
发明人： YASUE KENJI , TAMURA TSUNEO , IDA TAKASHI , HAYASE SHIGERU
IPC分类号： C08K3/26 , C08L51/04 , C08L55/00 , C08L55/02 , C08L71/12 , C08L77/00 , C08L77/06
摘要： PURPOSE:To obtain a composition, excellent in mechanical properties, heat and chemical resistance, etc., remarkably improved in flame retardance and suitable in the electrical, electronic and mechanical fields, etc., by blending nylon 46 with ABS, a high-molecular weight halogenated flame retardant and hydrotalcite in specific amounts. CONSTITUTION:A resin composition is obtained by blending (A) 15-97wt.%, preferably 20-85wt.% nylon 46 with (B) 1-70wt.%, preferably 10-60wt.% styrene- based polymer (ABS) prepared by polymerizing an aromatic vinyl compound and a vinyl cyanide compound in the presence of a rubber-like polymer, (C) 1-40wt.%, preferably 3-40wt.% high-molecular weight halogenated flame retardant (e.g. a halogenated phenoxy resin) and (D) 1-40wt.%, preferably 3-30wt.% hydrotalcite.

7. 发明专利

JPH0472352A METHOD FOR FORMING CRYSTALLINE POLYESTER 失效
公开(公告)号：JPH0472352A
公开(公告)日：1992-03-06
申请号：JP18664790
申请日：1990-07-12
申请人： UNITIKA LTD
发明人： YASUE KENJI , TAMURA TSUNEO , IDA TAKASHI , ITAKURA HIROMASA
IPC分类号： C08L67/02 , C08L67/00 , C08L77/00
摘要： PURPOSE:To obtain a molded product which can be applied to electric and machinery fields because of its excellent mechanical properties, toughness, and surface gloss, by adding a specific amount of an amorphous polyamide to a crystalline polyester in injection molding. CONSTITUTION:100 pts.wt. of crystalline polyester, for example, polyethylene terephthalate are mixed with 1-100pts. wt., preferably 3-90 pts.wt. of an amorphous polyamide such as a polycondensate of 2,2,4-/2,4,4- trimethylhexamethylenediamine with terephthalic and/or isophthalic acid and the mixture is subjected to injection molding.

8. 发明专利

JPH03223361A RESIN COMPOSITION 失效
公开(公告)号：JPH03223361A
公开(公告)日：1991-10-02
申请号：JP2028290
申请日：1990-01-29
申请人： UNITIKA LTD
发明人： YASUE KENJI , TAMURA TSUNEO , MOTOYAMA AKIO , ITAKURA HIROMASA
IPC分类号： C08L77/00 , C08L77/06
摘要： PURPOSE:To prepare a resin compsn. which is excellent in the mechanical properties, heat resistance, and chemical resistance and shows a reduced change by water absorption in dimension and physical properties by compounding nylon 46, a specific aliph. polyamide, and a specific amorphous polyamide in a specified ratio. CONSTITUTION:Nylon 46 (A), an aliph. polyamide (B) having a ratio of methylene group to amide group (CH2/NHCO) in the polymer main chain of 6-11 (e.g. nylon 12, or nylon 612), and an amorphous polyamide having a glass transition point of 100 deg.C or higher (C) (e.g. 2,2,4-/2,4,4-trimethylhexamethylenediamine/ terephthalic acid polycondensate) are compounded in such a ratio that formulas I and II [wherein W(A), W(B), and W(C) are the wts. of components A, B, and C compounded, respectively] are satisfied. The resulting compsn. is excellent in the mechanical properties, resistance to heat and chemicals, and gloss of a molded article, and shows a remarkably reduced change by water absorption in dimension and physical properties while retaining properties characteristic of nylon 46.

9. 发明专利

JPH02286741A IMPACT-RESISTANT AMORPHOUS RESIN COMPOSITION 失效
公开(公告)号：JPH02286741A
公开(公告)日：1990-11-26
申请号：JP11178289
申请日：1989-04-27
申请人： UNITIKA LTD
发明人： YASUE KENJI , TAMURA TSUNEO , IDA TAKASHI , ITAKURA HIROMASA
IPC分类号： C08L23/00 , C08L77/00
摘要： PURPOSE:To obtain the title composition improved in elongation at break and impact resistance without detriment to its heat resistance and appearance by mixing an amorphous copolyamide with an acid anhydride-olefin copolymer of a specified MFR value. CONSTITUTION:50-10mol% isophthalic acid is reacted with 0-40mol% terephthalic acid, 45-5mol% hexamethylenediamine and 5-45mol% bis(4-amino-3- methylcyclohexyl)methane to obtain an amorphous copolyamide (A) of a relative viscosity (as measured in a 1wt.% m-cresol solution of a copolyamide) of 1.2. Separately, an unsaturated dicarboxylic acid anhydride is copolymerized with a polyolefin or an olefin polymer to obtain an acid anhydride-olefin copolymer (B) of an MFR value (at 190 deg.C under a load of 2160g) of 0.1-5.0g/10min. 60-95wt.% component A is mixed with 40-5wt.% component B.

10. 发明专利

JP2001081333A THERMOPLASTIC RESIN COMPOSITION 失效
公开(公告)号：JP2001081333A
公开(公告)日：2001-03-27
申请号：JP26024599
申请日：1999-09-14
申请人： UNITIKA LTD
发明人： FUJIMOTO KOJI , TAMURA TSUNEO , KOGAMI AKINOBU , KOKURYO SACHIKO
IPC分类号： C01G23/04 , C08K3/22 , C08K7/00 , C08L77/00 , C08L101/00 , C08L101/16
摘要： PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition in which the titanic acid sheets of laminar titanic acid are dispersed in a thermoplastic resin in a molecular level and which can give molded articles each having high elongation and high heat resistance. SOLUTION: This thermoplastic resin composition comprises 100 pts.wt. of a thermoplastic resin such as polypropylene-based resin and 0.01 to 100 pts.wt. of laminar titanic acid. In detail, the titanic acid sheets of the laminar titanic acid are dispersed in the thermoplastic resin in a molecular level.

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