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1. 发明授权

US08022168B2 Spheroidal polyester polymer particles 有权
标题翻译：球状聚酯聚合物颗粒
公开(公告)号：US08022168B2
公开(公告)日：2011-09-20
申请号：US11454271
申请日：2006-06-16
申请人： Stephen Weinhold , Frederick Leslie Colhoun , Michael Paul Ekart , Benjamin Bradford Gamble
发明人： Stephen Weinhold , Frederick Leslie Colhoun , Michael Paul Ekart , Benjamin Bradford Gamble
IPC分类号： B29B9/06 , B29B9/16
CPC分类号： C08G63/88 , Y10T428/1334 , Y10T428/1355
摘要： Spheroidal polyester polymer particles, as well as preforms and stretch blow molded bottles made from the spheroidal particles, are provided which have: A) an It.V. of at least 0.72 dL/g, and either B) at least two melting peaks (on a DSC first heating scan), wherein one of said at least two melting peaks is a low peak melting point having a peak temperature within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J/g, or C) a low degree of crystallinity within a range of at least 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax=50%−CA−OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues in the polyester polymer, and OH is the total mole % of hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of the hydroxyl functional compounds residues; or both B) and C); and optionally but preferably D) 10 ppm or less of residual acetaldehyde.
摘要翻译：提供球形聚酯聚合物颗粒，以及由球形颗粒制成的预成型件和拉伸吹塑瓶，其具有：A）It.V. 至少0.72dL / g，和B）至少两个熔融峰（在DSC第一次加热扫描上），其中所述至少两个熔融峰中的一个是具有峰值温度在140℃范围内的低峰值熔点具有至少绝对值为1J / g的熔融吸热面积，或C）在至少20％和最大结晶度Tcmax的范围内的低结晶度，其定义为通过以下方程：Tcmax = 50％-CA-OH，其中CA是除对苯二甲酸残基之外的所有羧酸残基的总摩尔％，基于聚酯聚合物中100摩尔％的羧酸残基，OH是总摩尔基于100摩尔％的羟基官能化合物残基的除乙二醇残基之外的羟基官能化合物残基的％; 或B）和C）; 和任选但优选D）10ppm或更少的残留乙醛。

2. 发明申请

US20110092663A1 SPHEROIDAL POLYESTER POLYMER ARTICLES 审中-公开
标题翻译： SPHEROIDAL POLYESTER聚合物文章
公开(公告)号：US20110092663A1
公开(公告)日：2011-04-21
申请号：US12909099
申请日：2010-10-21
申请人： Stephen Weinhold , Frederick Leslie Colhoun , Michael Paul Ekart , Benjamin Bradford Gamble
发明人： Stephen Weinhold , Frederick Leslie Colhoun , Michael Paul Ekart , Benjamin Bradford Gamble
IPC分类号： C08G63/183
CPC分类号： C08G63/88 , C08G63/183 , C08J3/12 , C08J3/126 , C08J2367/00
摘要： In one embodiment of the present invention, spheroidal polyester polymer particles, as well as articles such as films, sheets, tubes, and the like made from the spheroidal particles, are provided. According to various embodiments of the invention, the particles may have an intrinsic viscosity (It.V.) of at least 0.65 dL/g and a degree of crystallinity less than about 45 percent. In another embodiment, the polyester polymer can comprise at least 4 mole percent and no more than 20 mole percent of residues other than ethylene glycol residues.
摘要翻译：在本发明的一个实施方案中，提供球状聚酯聚合物颗粒，以及由球形颗粒制成的制品如膜，片，管等。根据本发明的各种实施方案，颗粒的特性粘度（It.V.）至少为0.65dL / g，结晶度小于约45％。在另一个实施方案中，聚酯聚合物可以包含除乙二醇残基之外的至少4摩尔％且不超过20摩尔％的残余物。

3. 发明授权

US08968615B2 Low melting polyester polymers 有权
标题翻译：低熔聚酯聚合物
公开(公告)号：US08968615B2
公开(公告)日：2015-03-03
申请号：US12909126
申请日：2010-10-21
申请人： Michael Paul Ekart , Frederick Leslie Colhoun , Mary Therese Jernigan , Stephen Weinhold , Rodney Scott Armentrout
发明人： Michael Paul Ekart , Frederick Leslie Colhoun , Mary Therese Jernigan , Stephen Weinhold , Rodney Scott Armentrout
IPC分类号： B29C47/38 , C08G63/183 , B29C49/00 , B29C51/00 , C08G63/90 , B29C49/06 , B29K67/00
CPC分类号： C08G63/183 , B29B2911/1402 , B29B2911/14026 , B29B2911/14033 , B29B2911/1404 , B29B2911/14106 , B29B2911/14133 , B29C49/0005 , B29C49/06 , B29C51/002 , B29K2067/00 , C08G63/90 , Y10T428/13 , Y10T428/1303 , Y10T428/1352 , Y10T428/1359 , Y10T428/139
摘要： A bulk of polyester polymer particles comprising polyester polymer comprising greater than 75% virgin polyester polymer, the particles having: A) an It.V. of at least 0.72 dl/g, and B) 10 ppm or less of residual acetaldehyde; and C) at least two melting peaks, wherein one of said at least two melting peaks is a low peak melting point within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J/g. The particles may also have a degree of crystallinity within a range of 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax=50%−CA−OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues, and OH is the total mole % of all hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of hydroxyl functional compounds residues. The preforms and bottles made from these particles can be obtained by melt processing these particles at either lower overall power, faster screw speeds, lower residence time, or lower overall cycle time to thereby reduce the level of residual acetaldehyde generated in the melt.
摘要翻译：包含大于75％的原始聚酯聚合物的聚酯聚合物的大部分聚酯聚合物颗粒，该颗粒具有：A）It.V. 至少0.72dl / g，B）10ppm或更少的残留乙醛; 和C）至少两个熔融峰，其中所述至少两个熔融峰中的一个是在140℃至220℃的范围内的低峰值熔点，并且其熔融吸热面积至少为 1 J / g。颗粒也可以具有在20％范围内的结晶度和最大结晶度Tcmax，其由下式定义：Tcmax = 50％-CA-OH，其中CA是除对苯二甲酸之外的所有羧酸残基的总摩尔％基于100摩尔％的羧酸残基的酸残基，OH是基于100摩尔％的羟基官能化合物残基的除乙二醇残基之外的所有羟基官能化合物残基的总摩尔％。由这些颗粒制成的预成型件和瓶可以通过以更低的总功率，更快的螺杆速度，更低的停留时间或更低的总循环时间熔融加工这些颗粒来获得，从而降低熔体中产生的残余乙醛的水平。

4. 发明授权

US07459113B2 Process of making a container from polyester polymer particles having a small surface to center intrinsic-viscosity gradient 有权
标题翻译：从具有小表面的聚酯聚合物颗粒制备容器以使固有粘度梯度中心的方法
公开(公告)号：US07459113B2
公开(公告)日：2008-12-02
申请号：US10795783
申请日：2004-03-08
申请人： Frederick Leslie Colhoun , Michael Paul Ekart , Mary Therese Jernigan , Stephen Weinhold
发明人： Frederick Leslie Colhoun , Michael Paul Ekart , Mary Therese Jernigan , Stephen Weinhold
IPC分类号： B28B3/20 , B29C47/00 , B29C47/78 , B29C49/02
CPC分类号： C08G63/183 , B29B9/12 , B29C47/786 , B29C47/822 , B29K2067/00 , C08G63/181 , C08G63/185 , Y10T428/1352 , Y10T428/2982
摘要： There is now provided a polyester polymer particle having an It.V., a surface, and a center, wherein the It.V. at the surface of the particle is less than 0.25 dL/g higher than the It.V. at the center of the particle. The polyester polymer particle is desirably crystalline to prevent the particles from sticking to each other while drying, and desirably contains less than 10 ppm acetaldehyde. A polyester container, preferably a preform or beverage bottle, is made by feeding crystallized polyester particles having an It.V. of at least 0.70 dL/g to an extrusion zone, melting the particles in the extrusion zone to form a molten polyester polymer composition, and forming a sheet or a molded part from extruded molten polyester polymer, wherein at least a portion of the polyester particles have an It.V. at their surface which does not vary from their It.V. at their center by more than 0.25 dL/g, and the particles have not been solid state polymerized. Such polyester compositions have an It.V. suitable for containers, yet lose less It.V. during melt processing than existing polyesters.
摘要翻译：现在提供具有It.V.，表面和中心的聚酯聚合物颗粒，其中It.V. 在颗粒表面比It.V高出0.25dL / g。在颗粒的中心。聚酯聚合物颗粒理想地是结晶的，以防止颗粒在干燥时彼此粘合，并且期望含有少于10ppm的乙醛。聚酯容器，优选预制品或饮料瓶，是通过加入具有It.V.的结晶聚酯颗粒制成的。至少为0.70dL / g，熔化挤出区中的颗粒以形成熔融的聚酯聚合物组合物，并由挤出的熔融聚酯聚合物形成片材或模塑部件，其中至少一部分聚酯颗粒有一个It.V. 在它们的表面上，它们不同于它的It.V. 在其中心处大于0.25dL / g，并且该颗粒未被固态聚合。这种聚酯组合物具有It.V. 适合集装箱，但减少It.V. 在熔融加工过程中比现有的聚酯。

5. 发明申请

US20110040067A1 Low Melting Polyester Polymers 有权
标题翻译：低熔融聚酯聚合物
公开(公告)号：US20110040067A1
公开(公告)日：2011-02-17
申请号：US12909126
申请日：2010-10-21
申请人： Michael Paul Ekart , Frederick Leslie Colhoun , Mary Therese Jernigan , Stephen Weinhold , Rodney Scott Armentrout
发明人： Michael Paul Ekart , Frederick Leslie Colhoun , Mary Therese Jernigan , Stephen Weinhold , Rodney Scott Armentrout
IPC分类号： C08G63/183
CPC分类号： C08G63/183 , B29B2911/1402 , B29B2911/14026 , B29B2911/14033 , B29B2911/1404 , B29B2911/14106 , B29B2911/14133 , B29C49/0005 , B29C49/06 , B29C51/002 , B29K2067/00 , C08G63/90 , Y10T428/13 , Y10T428/1303 , Y10T428/1352 , Y10T428/1359 , Y10T428/139
摘要： A bulk of polyester polymer particles comprising polyester polymer comprising greater than 75% virgin polyester polymer, the particles having: A) an It.V. of at least 0.72 dl/g, and B) 10 ppm or less of residual acetaldehyde; and C) at least two melting peaks, wherein one of said at least two melting peaks is a low peak melting point within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J/g. The particles may also have a degree of crystallinity within a range of 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax=50%−CA−OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues, and OH is the total mole % of all hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of hydroxyl functional compounds residues. The preforms and bottles made from these particles can be obtained by melt processing these particles at either lower overall power, faster screw speeds, lower residence time, or lower overall cycle time to thereby reduce the level of residual acetaldehyde generated in the melt.
摘要翻译：包含大于75％的原始聚酯聚合物的聚酯聚合物的大部分聚酯聚合物颗粒，该颗粒具有：A）It.V. 至少0.72dl / g，B）10ppm或更少的残留乙醛; 和C）至少两个熔融峰，其中所述至少两个熔融峰中的一个是在140℃至220℃的范围内的低峰值熔点，并且其熔融吸热面积至少为 1 J / g。颗粒也可以具有在20％范围内的结晶度和最大结晶度Tcmax，其由下式定义：Tcmax = 50％-CA-OH，其中CA是除对苯二甲酸之外的所有羧酸残基的总摩尔％基于100摩尔％的羧酸残基的酸残基，OH是基于100摩尔％的羟基官能化合物残基的除乙二醇残基之外的所有羟基官能化合物残基的总摩尔％。由这些颗粒制成的预成型件和瓶可以通过以更低的总功率，更快的螺杆速度，更低的停留时间或更低的总循环时间熔融加工这些颗粒来获得，从而降低熔体中产生的残余乙醛的水平。

6. 发明授权

US07935399B2 Low melting polyester polymers 有权
标题翻译：低熔聚酯聚合物
公开(公告)号：US07935399B2
公开(公告)日：2011-05-03
申请号：US11018119
申请日：2004-12-21
申请人： Michael Paul Ekart , Frederick Leslie Colhoun , Mary Therese Jernigan , Stephen Weinhold , Rodney Scott Armentrout
发明人： Michael Paul Ekart , Frederick Leslie Colhoun , Mary Therese Jernigan , Stephen Weinhold , Rodney Scott Armentrout
IPC分类号： B32B1/02 , B32B1/08
CPC分类号： C08G63/183 , B29B2911/1402 , B29B2911/14026 , B29B2911/14033 , B29B2911/1404 , B29B2911/14106 , B29B2911/14133 , B29C49/0005 , B29C49/06 , B29C51/002 , B29K2067/00 , C08G63/90 , Y10T428/13 , Y10T428/1303 , Y10T428/1352 , Y10T428/1359 , Y10T428/139
摘要： A bulk of polyester polymer particles comprising polyester polymer comprising greater than 75% virgin polyester polymer, the particles having: A) an It.V. of at least 0.72 dl/g, and B) 10 ppm or less of residual acetaldehyde; and C) at least two melting peaks, wherein one of said at least two melting peaks is a low peak melting point within a range of 140° C. to 220° C. and having a melting endotherm area of at least the absolute value of 1 J/g. The particles may also have a degree of crystallinity within a range of 20% and a maximum degree of crystallinity Tcmax defined by the equation: Tcmax=50%−CA−OH where CA is the total mole % of all carboxylic acid residues other than terephthalic acid residues, based on 100 mole % of carboxylic acid residues, and OH is the total mole % of all hydroxyl functional compound residues other than ethylene glycol residues, based on 100 mole % of hydroxyl functional compounds residues. The preforms and bottles made from these particles can be obtained by melt processing these particles at either lower overall power, faster screw speeds, lower residence time, or lower overall cycle time to thereby reduce the level of residual acetaldehyde generated in the melt.
摘要翻译：包含大于75％的原始聚酯聚合物的聚酯聚合物的大部分聚酯聚合物颗粒，该颗粒具有：A）It.V. 至少0.72dl / g，B）10ppm或更少的残留乙醛; 和C）至少两个熔融峰，其中所述至少两个熔融峰中的一个是在140℃至220℃的范围内的低峰值熔点，并且其熔融吸热面积至少为 1 J / g。颗粒也可以具有在20％范围内的结晶度和最大结晶度Tcmax，其由下式定义：Tcmax = 50％-CA-OH，其中CA是除对苯二甲酸之外的所有羧酸残基的总摩尔％基于100摩尔％的羧酸残基的酸残基，OH是基于100摩尔％的羟基官能化合物残基的除乙二醇残基之外的所有羟基官能化合物残基的总摩尔％。由这些颗粒制成的预成型件和瓶可以通过以更低的总功率，更快的螺杆速度，更低的停留时间或更低的总循环时间熔融加工这些颗粒来获得，从而降低熔体中产生的残余乙醛的水平。

7. 发明申请

US20110034665A1 Polyester Polymer Particles Having a Small Surface to Center Molecular Weight Gradient 审中-公开
标题翻译：具有小表面至中心分子量梯度的聚酯聚合物颗粒
公开(公告)号：US20110034665A1
公开(公告)日：2011-02-10
申请号：US12909115
申请日：2010-10-21
申请人： Frederick Leslie Colhoun , Michael Paul Ekart , Mary Therese Jernigan , Stephen Weinhold
发明人： Frederick Leslie Colhoun , Michael Paul Ekart , Mary Therese Jernigan , Stephen Weinhold
IPC分类号： C08G63/183 , C08G63/181
CPC分类号： C08G63/183 , B29B9/12 , B29C48/793 , B29C48/832 , B29K2067/00 , C08G63/181 , C08G63/185 , Y10T428/1352 , Y10T428/2982
摘要： There is now provided a polyester polymer particle having an It.V., a surface, and a center, wherein the It.V. at the surface of the particle is less than 0.25 dL/g higher than the It.V. at the center of the particle. The polyester polymer particle is desirably crystalline to prevent the particles from sticking to each other while drying, and desirably contains less than 10 ppm acetaldehyde. A polyester container, preferably a preform or beverage bottle, is made by feeding crystallized polyester particles having an It.V. of at least 0.70 dL/g to an extrusion zone, melting the particles in the extrusion zone to form a molten polyester polymer composition, and forming a sheet or a molded part from extruded molten polyester polymer, wherein at least a portion of the polyester particles have an It.V. at their surface which does not vary from their It.V. at their center by more than 0.25 dL/g, and the particles have not been solid state polymerized. Such polyester compositions have an It.V. suitable for containers, yet lose less It.V. during melt processing than existing polyesters.
摘要翻译：现在提供具有It.V.，表面和中心的聚酯聚合物颗粒，其中It.V. 在颗粒表面比It.V高出0.25dL / g。在颗粒的中心。聚酯聚合物颗粒理想地是结晶的，以防止颗粒在干燥时彼此粘合，并且期望含有少于10ppm的乙醛。聚酯容器，优选预制品或饮料瓶，是通过加入具有It.V.的结晶聚酯颗粒制成的。至少为0.70dL / g，熔化挤出区中的颗粒以形成熔融的聚酯聚合物组合物，并由挤出的熔融聚酯聚合物形成片材或模塑部件，其中至少一部分聚酯颗粒有一个It.V. 在它们的表面上，它们不同于它的It.V. 在其中心处大于0.25dL / g，并且该颗粒未被固态聚合。这种聚酯组合物具有It.V. 适合集装箱，但减少It.V. 在熔融加工过程中比现有的聚酯。

8. 发明申请

US20090131627A1 POLYESTER POLYMER PARTICLES HAVING A SMALL SURFACE TO CENTER MOLECULAR WEIGHT GRADIENT 审中-公开
标题翻译：具有小表面的聚酯聚合物颗粒至中心分子量级
公开(公告)号：US20090131627A1
公开(公告)日：2009-05-21
申请号：US12257837
申请日：2008-10-24
申请人： Frederick Leslie Colhoun , Michael Paul Ekart , Mary Therese Jernigan , Stephen Weinhold
发明人： Frederick Leslie Colhoun , Michael Paul Ekart , Mary Therese Jernigan , Stephen Weinhold
IPC分类号： C08G63/02
CPC分类号： C08G63/183 , B29B9/12 , B29C48/793 , B29C48/832 , B29K2067/00 , C08G63/181 , C08G63/185 , Y10T428/1352 , Y10T428/2982
摘要： There is now provided a polyester polymer particle having an It.V., a surface, and a center, wherein the It.V. at the surface of the particle is less than 0.25 dL/g higher than the It.V. at the center of the particle. The polyester polymer particle is desirably crystalline to prevent the particles from sticking to each other while drying, and desirably contains less than 10 ppm acetaldehyde. A polyester container, preferably a preform or beverage bottle, is made by feeding crystallized polyester particles having an It.V. of at least 0.70 dL/g to an extrusion zone, melting the particles in the extrusion zone to form a molten polyester polymer composition, and forming a sheet or a molded part from extruded molten polyester polymer, wherein at least a portion of the polyester particles have an It.V. at their surface which does not vary from their It.V. at their center by more than 0.25 dL/g, and the particles have not been solid state polymerized. Such polyester compositions have an It.V. suitable for containers, yet lose less It.V. during melt processing than existing polyesters.
摘要翻译：现在提供具有It.V.，表面和中心的聚酯聚合物颗粒，其中It.V. 在颗粒表面比It.V高出0.25dL / g。在颗粒的中心。聚酯聚合物颗粒理想地是结晶的，以防止颗粒在干燥时彼此粘合，并且期望含有少于10ppm的乙醛。聚酯容器，优选预制品或饮料瓶，是通过加入具有It.V.的结晶聚酯颗粒制成的。至少为0.70dL / g，熔化挤出区中的颗粒以形成熔融的聚酯聚合物组合物，并由挤出的熔融聚酯聚合物形成片材或模塑部件，其中至少一部分聚酯颗粒有一个It.V. 在它们的表面上，它们不同于它的It.V. 在其中心处大于0.25dL / g，并且该颗粒未被固态聚合。这种聚酯组合物具有It.V. 适合集装箱，但减少It.V. 在熔融加工过程中比现有的聚酯。

9. 发明授权

US08859681B2 Polyester blends exhibiting low temperature toughness 有权
标题翻译：表现出低温韧性的聚酯共混物
公开(公告)号：US08859681B2
公开(公告)日：2014-10-14
申请号：US13222798
申请日：2011-08-31
申请人： Frederick Leslie Colhoun , Mark Edward Stewart , Stephen Weinhold , Richard Dalton Peters , Roger Lee Martin
发明人： Frederick Leslie Colhoun , Mark Edward Stewart , Stephen Weinhold , Richard Dalton Peters , Roger Lee Martin
IPC分类号： B32B1/08 , B21B3/00 , B29C41/42 , C08L67/03 , C08L67/02 , B29C51/00 , C08J5/18 , C08L23/06 , C08K3/36 , C08L77/00 , C08K3/04 , C08L23/08 , B29C51/10 , B29K67/00
CPC分类号： C08L67/02 , B29C51/002 , B29C51/10 , B29K2067/00 , B29K2995/0041 , C08J5/18 , C08J2367/02 , C08K3/04 , C08K3/36 , C08L23/06 , C08L23/08 , C08L77/00 , Y10T428/1397 , C08L2666/02 , C08L2666/04
摘要： Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.
摘要翻译：公开了适用于包装的聚合物共混物，其包括一种或多种抗冲改性剂; 和一种或多种通过熔融相聚合获得的聚对苯二甲酸乙二醇酯均聚物或共聚物，其使用包含例如约3ppm至约60ppm的铝原子和一种或多种碱土金属原子的碱金属原子，或碱化合物残基的量，例如约1ppm至约25ppm，基于一种或多种聚对苯二甲酸乙二醇酯均聚物或共聚物的重量。所公开的聚合物共混物与制备的共混物相比显示出改善的低温韧性使用用常规催化剂体系制备的聚合物。

10. 发明申请

US20110318519A1 POLYESTER BLENDS EXHIBITING LOW TEMPERATURE TOUGHNESS 有权
标题翻译：聚酯纤维展示低温韧性
公开(公告)号：US20110318519A1
公开(公告)日：2011-12-29
申请号：US13222798
申请日：2011-08-31
申请人： Frederick Leslie COLHOUN , Mark Edward Stewart , Stephen Weinhold , Richard Dalton Peters , Roger Lee Martin
发明人： Frederick Leslie COLHOUN , Mark Edward Stewart , Stephen Weinhold , Richard Dalton Peters , Roger Lee Martin
IPC分类号： B32B1/08 , B32B3/00 , B29C41/42 , C08L67/03
CPC分类号： C08L67/02 , B29C51/002 , B29C51/10 , B29K2067/00 , B29K2995/0041 , C08J5/18 , C08J2367/02 , C08K3/04 , C08K3/36 , C08L23/06 , C08L23/08 , C08L77/00 , Y10T428/1397 , C08L2666/02 , C08L2666/04
摘要： Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.
摘要翻译：公开了适用于包装的聚合物共混物，其包括一种或多种抗冲改性剂; 和一种或多种通过熔融相聚合获得的聚对苯二甲酸乙二醇酯均聚物或共聚物，其使用包含例如约3ppm至约60ppm的铝原子和一种或多种碱土金属原子的碱金属原子，或碱化合物残基的量，例如约1ppm至约25ppm，基于一种或多种聚对苯二甲酸乙二醇酯均聚物或共聚物的重量。所公开的聚合物共混物与制备的共混物相比显示出改善的低温韧性使用用常规催化剂体系制备的聚合物。

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