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21.发明公开POLYESTER/POLYAMIDE BLEND HAVING IMPROVED FLAVOR RETAINING PROPERTY AND CLARITY 无效具有改进的AROMABEWAHREIGENSCHAFT和清晰度聚酯/聚酰胺共混
公开(公告)号：EP0857194A1
公开(公告)日：1998-08-12
申请号：EP96936793.0
申请日：1996-10-21
发明人： LONG, Timothy, Edward , SPRAYBERRY, Harold, Blake , STAFFORD, Steven, Lee , TURNER, Sam, Richard
IPC分类号： C08L67
摘要： The present invention comprises polyester blend compositions having improved flavor retaining properties and color, comprising: (A) 98.0 to 99.95 weight percent of a polyester which comprises (1) a dicarboxylic acid component comprising repeat units from at least 85 mole percent terephthalic acid or naphthalenedicarboxylic acid derived from terephthalic acid or naphthalenedicarboxylic acid respectively; and (2) a diol component comprising repeat units from at least 85 mole percent ethylene glycol, based on 100 mole percent dicarboxylic acid and 100 mole percent diol; and (B) 2.0 to 0.05 weight percent of a polyamide; wherein the combined weights of (A) and (B) total 100 percent.
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22.发明公开NOVEL COPOLYESTER COMPOSITIONS WITH IMPROVED IMPACT STRENGTH AT LOW TEMPERATURES 审中-公开具有改进的低温冲击强度新型共聚酯
公开(公告)号：EP1805244A1
公开(公告)日：2007-07-11
申请号：EP05803904.1
申请日：2005-10-12
IPC分类号： C08G63/199
CPC分类号： C08G63/199 , C08G63/20
摘要： This invention relates to a polyester composition comprising: (i) diacid residues comprising at least 80 mole percent, based on the total moles of diacid residues, of one or more residues of: terephthalic acid, naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, or isophthalic acid; and (ii) diol residues comprising from about 25 to about 70 mole percent, based on the total moles of diol residues, of the residues of 1,4-cyclohexanedimethanol, and from about 75 to about 30 mole percent, based on the total moles of diol residues, of the residues of 1,3-propanediol. This invention has surprising improved impact strength at low temperatures.
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公开(公告)号：EP1414883B1
公开(公告)日：2006-09-13
申请号：EP02748213.2
申请日：2002-07-18
IPC分类号： C08G63/199 , C08G63/183
CPC分类号： C08G63/183 , C08G63/199 , Y10T428/1352
摘要： Disclosed are amorphous copolyesters having an inherent viscosity (IV) of at least about 0.4 dL/g measured at a temperature of 25°C at 0.25 g/dl concentration in a solvent mixture of symmetric tetrachloroethane and phenol having a weight ratio of symmetric tetrachloroethane to phenol of 2:3 comprising (1) a diacid component consisting essentially of about 90 to 100 mole percent terephthalic acid residues and 0 to about 10 mole percent isophthalic acid residues; and (2) a diol component consisting essentially of about 10 to 70 mole percent 1,4-cyclohexanedimethanol residues and about 90 to 30 mole percent neopentyl glycol residues; wherein the amorphous copolyesters comprises 100 mole percent diacid component and 100 mole percent diol component. The amorphous copolyesters are useful in the manufacture or fabrication of medical devices which have improved resistance to degradation upon exposure to lipids, as a profile produced by profile extrusion and as an injection molded article. Also, a method of melt processing the amorphous copolyester is disclosed which allows for performing a minimal drying or no drying of the copolyester prior to melt processing.
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公开(公告)号：EP1560869A1
公开(公告)日：2005-08-10
申请号：EP03768866.0
申请日：2003-11-12
IPC分类号： C08G63/66 , C08G63/664 , C08G63/668 , C08G63/672 , C08G63/79 , C08G63/81 , C08L67/02
CPC分类号： C08G63/672
摘要： This invention relates to a process for producing a polyester comprising the steps of: (g) obtaining an aqueous homogenous solution of isosorbide; (h) feeding the aqueous homogenous solution of step (a) into a reactor; (i) feeding one or more glycols and one or more dicarboxylic acids either into the aqueous solution of step (a) or into the reactor of step (b) either prior to, during and/or subsequent to step (b); (j) esterifying the reactor contents at sufficient temperatures and pressures, and optionally in the presence of suitable catalysts, to effect esterificaton; (k) forming a prepolymer; and (l) polycondensing the prepolymer at sufficient temperatures and pressures in the presence of a suitable catalyst to effect polycondensation to form a polyester.
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25.发明授权POLYALKYLENE ETHERS AS PLASTICIZERS AND FLOW AIDS IN POLY(1,4-CYCLOHEXANEDIMETHYLENE TEREPHTHALATE) RESINS 失效聚亚烷基醚作为增塑和聚（1,4-环己烷二甲醇对苯二甲酸酯）流动AID RESINS
公开(公告)号：EP0850275B1
公开(公告)日：2003-05-21
申请号：EP96929946.0
申请日：1996-09-06
IPC分类号： C08L67/02
摘要： This invention relates to a polyester composition comprising a blend of: (A) 99.5 to 75 weight % of a copolyester having an inherent viscosity of 0.1 to 1.2 dL/g and having a melting point in excess of 250 °C, comprising: (a) one or more dicarboxylic acids, and (b) a glycol component comprising at least 80 mole % 1,4-cyclohexanedimethanol; and (B) 0.5 to 25 weight % of one or more polyalkylene ethers, wherein the weight percentages of all components in said blend total 100 weight %.
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公开(公告)号：EP0934351B1
公开(公告)日：2002-05-29
申请号：EP97912938.4
申请日：1997-10-28
IPC分类号： C08G63/88
CPC分类号： C08L67/02 , B29K2105/0002 , C08G63/88 , C08L77/00 , Y10S264/64 , C08L2666/20 , C08L2666/18
摘要： The present invention discloses a process for producing molded, shaped or extruded articles comprising the steps of: a) melt reacting, in the presence of a catalyst which is substantially free of Co compounds, at least one glycol and at least one dicarboxylic acid to form a polyester having an I.V. of at least about 0.5 dL/g, wherein said at least one glycol is selected from the group consisting of glycols having up to 10 carbon atoms and mixtures thereof and said dicarboxylic is selected from the group consisting of alkyl dicarboxylic acids having 2 to 16 carbon atoms, aryl dicarboxylic acids having 8 to 16 carbon atoms and mixtures thereof; b) adding an acetaldehyde reducing additive to said polyester to form a reduced acetaldehyde polyester; and c) forming said reduced acetaldehyde polyester into articles directly from step b. Thus, the present invention provides a process for directly producing from the melt article having extremely low acetaldehyde content.
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公开(公告)号：EP1203051A1
公开(公告)日：2002-05-08
申请号：EP00952643.5
申请日：2000-08-08
发明人： BERNARD, Linda, Gail , CLAUBERG, Horst , CYR, Michael, John , GILMER, John, Walker , MATAYABAS, James, Christopher, Jr. , OWENS, Jeffrey, Todd , STEWART, Mark, Edward , TURNER, Sam, Richard , BAGRODIA, Shriram
CPC分类号： B82Y30/00 , C08J5/005 , C08J2377/00 , C08K3/34 , C08K7/00 , C08K2201/008 , C08L77/00
摘要： The present invention relates to polymer-platelet particle composites comprising at least one polyamide resin, at least one oxygen scavenging system, and platelet particles derived from at least one layered silicate material.
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公开(公告)号：EP1200522A1
公开(公告)日：2002-05-02
申请号：EP00952330.9
申请日：2000-07-31
IPC分类号： C08L67/02
CPC分类号： C08L67/02 , Y10T428/1352 , C08L77/00
摘要： The invention relates to polyester/polyamide blend compositions for forming an article having low haze and reduced gas permeability compared to the polyester alone. More specifically, the invention relates to blends of semi-crystalline polyesters such as PET with low molecular weight polyamides and to the containers and packages for food, beverages, cosmetics, pharmaceuticals and personal care products that can be fabricated from these blends.
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公开(公告)号：EP0963386A1
公开(公告)日：1999-12-15
申请号：EP98907602.0
申请日：1998-02-24
发明人： TURNER, Sam, Richard , MACKENZIE, Peter, Borden , KILLIAN, Christopher, Moore , MCDEVITT, Jason, Patrick , JONES, Allan, Scott , PONASIK, James, Allen, Jr.
CPC分类号： C08G67/02 , C08F10/00 , C08F210/00 , C08F210/02 , C08G61/02 , C08G61/122 , C08F218/00 , C08F220/00 , C08F216/00 , C08F4/7006
摘要： Homopolymers of olefin monomers having polar functional groups, and copolymers of these monomers with each other and with non-polar olefins and optionally carbon monoxide are disclosed. The polymers can be prepared by contacting the corresponsping monomers with a transition metal catalyst under comparatively mild conditions; this preserves at least some of the polar functional groups in the resulting polymer. The polymers are suitable for processing in conventional extrusion processes, and can be formed into high barrier sheets or films, or low molecular weight resins for use in synthetic waxes in wax coatings or as emulsions.
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