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31. 发明专利

JP2001288446A POLYESTER FOR FLAME-RETARDANT HOT MELT ADHESIVE 失效
公开(公告)号：JP2001288446A
公开(公告)日：2001-10-16
申请号：JP2000106578
申请日：2000-04-07
申请人： NIPPON ESTER CO LTD
发明人： YASUHARA SHIGEFUMI
IPC分类号： C08G63/60 , C08G63/692 , C09J167/03 , C09J167/04
摘要： PROBLEM TO BE SOLVED: To provide a polyester for a flame-retardant hot melt adhesive which loads the environment little and has sufficient flame retardance and adhesive force. SOLUTION: This polyester is a crystalline polyester which has a melting point of 50-200 deg.C and is prepared by the copolymerization of a dicarboxylic acid component containing 30-90 mol% terephthalic acid, an oxycarboxylic acid component containing 5-50 mol% aliphatic lactone, a glycol component mainly comprising 1,4-butanediol, and an organophosphorus compound having at least two ester-forming groups in such an amount that the phosphorus content in the resultant polyester is 500-50,000 ppm.

32. 发明专利

JPH1135667A PRODUCTION OF FLAME-RETARDANT POLYESTER 失效
公开(公告)号：JPH1135667A
公开(公告)日：1999-02-09
申请号：JP19362397
申请日：1997-07-18
申请人： NIPPON ESTER CO LTD
发明人： YASUHARA SHIGEFUMI
IPC分类号： C08G63/692
摘要： PROBLEM TO BE SOLVED: To obtain a flame-retardant polyester good in color tone and useful for the clothing field and industrial area by carrying out a polycondensation reaction through adding each specific organophosphorus compound and unsaturated aliphatic compound at specified amounts, respectively. SOLUTION: This flame-retardant polyester comprising or predominant in polyethylene terephthalate is obtained by conventional polycondensation process; during the process, such an amount of an organophosphorus compound of formula I (R is a 1-12C alkyl or aryl; R and R are each a 1-18C alkyl, aryl, monohydroxyalkyl or H; A is a bivalent alkylene) such as (2-carboxyethyl)me thylphosphinic acid as to be 500-30,000 ppm in the phosphorus atom content of the final polyester and 0.01-0.5 molar times, based on the organophosphorus compound, of an unsaturated aliphatic compound of formula II (R is a bivalent 2-12C aliphatic group having an unsaturated bond on the main or side chain; X and Y are each hydroxyl or carboxyl) such as maleic acid are added to the reaction system. Preferably, both the organophosphorus compound and the unsaturated aliphatic compound are used in the form of an ethylene glycol solution heat-treated in advance.

33. 发明专利

JP2002284867A POLYESTER FOR ADHESIVE, AND LAMINATE 失效
公开(公告)号：JP2002284867A
公开(公告)日：2002-10-03
申请号：JP2001082758
申请日：2001-03-22
申请人： NIPPON ESTER CO LTD
发明人： YASUHARA SHIGEFUMI
IPC分类号： B32B27/36 , C08G63/692 , C09J167/00
摘要： PROBLEM TO BE SOLVED: To provide a polyester for adhesives and a laminate which solve various problems of a flame-retardant polyester adhesive and are excellent particularly in moist heat resistance as well as in the adhesiveness to metals and besides have a little load on the environment. SOLUTION: The polyester for adhesives is a copolymer polyester which comprises one or more kinds of dicarboxylic acid components and one or more kinds of glycol components, with at least one kind of the glycol component being a poly(alkylene oxide)glycol adduct to a poly(tetramethylene oxide)glycol and/or a bisphenol A-based compound, and which contains the organic phosphorus compound of a specific structure having two or more ester-formable functional groups in an amount of the phosphorus atom content to the copolymer polyester of 500 to 50,000 ppm, and also which has a glass transition point of -30 to 40 deg.C and an average molecular weight per repeating unit of the copolymer polyester of 280 or more.

34. 发明专利

JP2002275251A POLYESTER RESIN AND LAMINATED BODY 失效
公开(公告)号：JP2002275251A
公开(公告)日：2002-09-25
申请号：JP2001080609
申请日：2001-03-21
申请人： NIPPON ESTER CO LTD
发明人： NAKADA TOMOYASU , YASUHARA SHIGEFUMI
IPC分类号： C08G63/12 , C08G63/127
摘要： PROBLEM TO BE SOLVED: To provide a polyester resin that is suitable for laminated body which is used as electric wires electrically connecting the inner wiring in electronic equipment or between a variety of electronic equipment and shows excellent heat distortion resistance, high solution-forming properties, solution stability and high adhesion to base material and electric conductor and provide laminated body using the polyester resin. SOLUTION: The objective polyester resin includes aliphatic glycol bearing ether linkages as a glycol component. The content of the aliphatic glycol bearing ether linkages is 10-35 mol%, the melting point is 90-150 deg.C, the calorific value of crystallization is 1-20 J/g and the variation rate is

35. 发明专利

JP2002047471A POLYESTER FOR FLAME-RETARDANT HOT-MELT ADHESIVE 失效
公开(公告)号：JP2002047471A
公开(公告)日：2002-02-12
申请号：JP2000233235
申请日：2000-08-01
申请人： NIPPON ESTER CO LTD
发明人： YASUHARA SHIGEFUMI
IPC分类号： C09K21/14 , C08G63/692 , C09J5/06 , C09J167/02
摘要： PROBLEM TO BE SOLVED: To obtain a polyester for flame-retardant hot-melt adhesives which dissolves various problems of flame-retardant polyester adhesives, is particularly excellent in resistance to wet-heat and in adhesion to metals, and causes less load to the environment. SOLUTION: This polyester is a crystalline copolymeric polyester composed primarily of dicarboxylic acid components and 1,4-butanediol. The dicarboxylic acid components comprise 30-98.5 mol% of terephthalic acid, 0.5-25 mol% of a dimer acid, and 1-30 mol% of isophthalic acid and/or an aliphatic dicarboxylic acid based on the total acid components constituting the polyester. The polyester contains an organic phosphorus compound with two or more ester-forming functional groups in a phosphorus content of 500-50,000 ppm in the polyester, and has a melting point of 50-200 deg.C.

36. 发明专利

JP2001302772A POLYESTER RESIN AND COATING MATERIAL COMPOSITION 失效
公开(公告)号：JP2001302772A
公开(公告)日：2001-10-31
申请号：JP2000122754
申请日：2000-04-24
申请人： NIPPON ESTER CO LTD
发明人： NAKADA TOMOYASU , YASUHARA SHIGEFUMI
IPC分类号： C08G63/52 , C09D167/06
摘要： PROBLEM TO BE SOLVED: To obtain a polyester resin which is easy to coat and bake and has excellent processability and excellent adhesion to metals and does not generate a toxic, putrid gas upon incineration. SOLUTION: The polyester resin comprises 80-99 mol% aromatic dicarboxylic acid and 1-10 mol% unsaturated dicarboxylic acid as the dicarboxylic acid component and 60-100 mol% 1,2-propylene glycol as the glycol component, and has an intrinsic viscosity of >=0.35 and a glass transition temperature of >=40 deg.C.

37. 发明专利

JP2000212266A PREPARATION OF FLAME-RETARDANT POLYESTER 失效
公开(公告)号：JP2000212266A
公开(公告)日：2000-08-02
申请号：JP1712499
申请日：1999-01-26
申请人： NIPPON ESTER CO LTD
发明人： SAKAI MAKIKO , YASUHARA SHIGEFUMI , KITSUKA YOSHIYUKI
IPC分类号： C08G63/692 , C08G63/78
摘要： PROBLEM TO BE SOLVED: To prepare a flame-retardant polyester at a high productivity at a low cost by conducting esterification or transesterification in the presence of an organophosphorus compound in a specified amount in terms of phosphorus and an unsaturated aliphatic compound in a specified amount based on the organophosphorus compound. SOLUTION: The esterification or transesterification of at least one dicarboxylic acid (e.g. terephthalic acid) and at least one glycol (e.g. ethylene glycol) is conducted at 250 deg.C or higher in the presence of an organophosphorus compound of the formula in such an amount that the phosphorus content in the resultant polyester is 500 ppm or higher and an unsaturated aliphatic compound of the formula: X1-R4-X2 (e.g. itaconic acid) is in an amount of 0.9-1.2 mol per mol of the organophosphorus compound. Then, a catalyst (e.g. antimony dioxide) is added to the reaction system, which is then subjected to polycondensation at 220-290 deg.C to give a polyester. In the formulas, R1 and R2 are each H or a 1-12C hydrocarbon group; R4 is a 2-12C alkylene group having an unsaturated bond on the side chain or on the main chain; and X1 and X2 are each hyroxyl or carboxyl.

38. 发明专利

JPH11315418A PRODUCTION OF POLYESTER FOR ANTIPILLING FIBER 失效
公开(公告)号：JPH11315418A
公开(公告)日：1999-11-16
申请号：JP12079698
申请日：1998-04-30
申请人： NIPPON ESTER CO LTD
发明人： YASUHARA SHIGEFUMI , TOKUTAKE MASAHITO
IPC分类号： D01F6/84 , D01F6/86
摘要： PROBLEM TO BE SOLVED: To provide a method by which a polyester having a high degree of polymerization and a sufficient tensile strength and suitable for an antipilling polyester good in color tone without causing problems such as scattering of a phosphorus compound to the outside of the system or the corrosion of a reactor with the phosphorus compound can be produced with good productivity. SOLUTION: When an aromatic dicarboxylic acid consisting essentially of terephthalic acid and an alkylene glycol consisting essentially of ethylene glycol are used and passed through an esterifying reaction and a polycondensation reaction to produce a polyester, a diethylene glycol ester of phosphoric acid is added to a polyester low polymer of the aromatic dicarboxylic acid and alkylene glycol in an amount so as to provide 0.5-2.0 mol.% content of the phosphorus atom based on the acid component of the polyester. The polycondensation reaction is carried out in the presence of a polycondensation catalyst until the intrinsic viscosity attains >=0.55.

39. 发明专利

JPH09132653A POLYESTER FILM FOR LAMINATE, LAMINATED SHEET AND FOOD AND DRINK CONTAINER FOR RETORTING 失效
公开(公告)号：JPH09132653A
公开(公告)日：1997-05-20
申请号：JP31365695
申请日：1995-11-06
申请人： NIPPON ESTER CO LTD
发明人： YASUHARA SHIGEFUMI , UEDA ATSUKO
IPC分类号： B65D81/34 , B32B15/08 , B32B15/09 , B32B27/00 , B32B27/36 , C08G63/181 , C08G63/183 , C08J5/18
摘要： PROBLEM TO BE SOLVED: To provide a polyester film for laminates, having a low content of an ethylene terephthalate cyclotrimer and being excellent in flavor retention and scratch resistance and to provide a laminated sheet and a food and drink container for retorting by using the film. SOLUTION: This polyester film for laminates comprises a crystalline polyester made from a dicarboxylic acid being terephthalic acid, a diol component based on ethylene glycol as main components and 2mol% or above, based on the total dicarboxylic acid component, dimer acid and has a content of an ethylene terephthalate cyclotrimer of 0.8wt.% or below.

40. 发明专利

JPH08231701A POLYESTER RESIN AND HOLLOW CONTAINER 失效
公开(公告)号：JPH08231701A
公开(公告)日：1996-09-10
申请号：JP6205495
申请日：1995-02-23
申请人： NIPPON ESTER CO LTD
发明人： YASUHARA SHIGEFUMI , UEDA ATSUKO
IPC分类号： B29C49/02 , B29K67/00 , B29L24/00 , C08G63/78 , C08G63/82 , C08G63/86
摘要： PURPOSE: To obtain a polyester having high transparency for a hollow container by using an inexpensive antimony trioxide as a polycondensation catalyst and to obtain a hollow container. CONSTITUTION: This polyester resin is produced by using terephthalic acid as a dicarboxylic acid component, an alkylene glycol as the main component of a diol together with a polyfunctional compound having a higher valence than two and antimony trioxide as a polycondensation catalyst. In the obtained polyester resin, the content (a) of the antimony trioxide is 1×10 to 5×10 mol based on 1mol of the acid component constituting the polyester, that (b) of the polyfunctional compound us 5×10 to 300×10 mol based on 1mol of the acid component, and the ratio of (b)/(a) is >=5. Further, the intrinsic viscosity of the resin is >=0.5dl/g. The objective polyester-made hollow container is produced by currying out blow molding of a preform obtained by the injection molding or extrusion molding of the resin.

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