Low melt viscosity amorphous copolyesters with enhanced glass transition
temperatures
    21.
    发明授权
    Low melt viscosity amorphous copolyesters with enhanced glass transition temperatures 失效
    具有增强的玻璃化转变温度的低熔融粘度的无定形共聚酯

    公开(公告)号:US6120889A

    公开(公告)日:2000-09-19

    申请号:US324883

    申请日:1999-06-03

    摘要: The invention relates to an amorphous copolyester having a maximum melt viscosity at 1 radian/second and at about 260 to about 290.degree. C. of about 12000 poise, a glass transition temperature ranging from about 88.degree. C. to about 120.degree. C., and an inherent viscosity of at least about 0.6 dl/g. The amorphous copolyesters comprise the reaction product of a diol component and a dicarboxylic acid component. The diol component comprises residues of from about 5.0 to about 50 mole % of 2,2'-(sulfonylbis(4,1 -phenyleneoxy))-bis(ethanol) which has the following chemical formula: ##STR1## and from about 50 to about 95 mole % of a mixture of at least two diols selected from the group consisting of ethylene glycol, neopentyl glycol, 1,3-propanediol, 1,4-butanediol, 1,4-cyclohexanedimethanol, and mixture thereof. The dicarboxylic acid component comprises residues of terephthalic acid, isophthalic acid, 1,4-cyclohexandedicarboxylic acid, 2,6-naphthalene dicarboxylic acid and mixtures thereof. The amorphous copolyesters according to the invention have relatively low melt viscosities and relatively high glass transition temperatures. Because of the low melt viscosities and high glass transition temperatures, copolyesters with increased IV or molecular weight can easily be obtained. The copolyesters according to the invention can be used for molded or extruded articles, sheets, and films. Accordingly, the invention also relates to molded and extruded articles, sheets, and films made from a copolyester as described above.

    摘要翻译: 本发明涉及一种无定形共聚酯,其熔体粘度为1弧度/秒,约260至约290℃,约12000泊,玻璃化转变温度为约88℃至约120℃, 并且特性粘度为至少约0.6dl / g。 无定形共聚酯包括二醇组分和二羧酸组分的反应产物。 二醇组分包括具有以下化学式的2,2'-(磺酰基双(4,1-亚苯氧基)) - 双(乙醇)的约5.0-约50摩尔%的残基和约50-约95摩尔 %的至少两种选自乙二醇,新戊二醇,1,3-丙二醇,1,4-丁二醇,1,4-环己烷二甲醇及其混合物的二醇的混合物。 二羧酸组分包括对苯二甲酸,间苯二甲酸,1,4-环己二羧酸,2,6-萘二甲酸及其混合物的残留物。 根据本发明的无定形共聚酯具有相对低的熔体粘度和相对较高的玻璃化转变温度。 由于熔体粘度低和玻璃化转变温度高,因此可以容易地获得IV或分子量增加的共聚酯。 根据本发明的共聚酯可用于模制或挤出制品,片材和薄膜。 因此,本发明还涉及由如上所述的共聚酯制成的模制和挤压制品,片材和薄膜。

    Preparation of branched polyethylene terephthalate
    22.
    发明授权
    Preparation of branched polyethylene terephthalate 失效
    支链聚对苯二甲酸乙二醇酯的制备

    公开(公告)号:US5376735A

    公开(公告)日:1994-12-27

    申请号:US104741

    申请日:1993-07-12

    申请人: Bobby J. Sublett

    发明人: Bobby J. Sublett

    IPC分类号: C08G63/20 C08G63/80 C08F20/50

    CPC分类号: C08G63/80 C08G63/20

    摘要: Disclosed is an improved process for the preparation of branched polyethylene terephthalate and co-polyethylene terephthalate, having high melt viscosities. The process comprises carrying out the polymerization of the branched polyethylene terephthalate in intimate admixture with a small amount of isophthalic acid. Polyethylene terephthalate with high melt viscosities are obtained and are free from inhomogeneities.

    摘要翻译: 公开了一种制备具有高熔体粘度的支化聚对苯二甲酸乙二醇酯和共聚对苯二甲酸乙二醇酯的改进方法。 该方法包括以少量的间苯二甲酸与聚对苯二甲酸支链聚合进行紧密混合。 获得具有高熔体粘度的聚对苯二甲酸乙二醇酯并且不含不均匀性。

    Flexible, biaxially oriented films of modified poly (ethylene
terephthalate)
    24.
    发明授权
    Flexible, biaxially oriented films of modified poly (ethylene terephthalate) 失效
    改性聚对苯二甲酸乙二醇酯的柔性双轴取向膜

    公开(公告)号:US4929714A

    公开(公告)日:1990-05-29

    申请号:US246045

    申请日:1988-09-19

    IPC分类号: C08G63/672

    CPC分类号: C08G63/672

    摘要: Disclosed are flexible, biaxially oriented films of poly(ethylene terephthalate) modified with a long chain dibasic acid or glycol. This material is useful in packaging applications where resistance to flex cracking is important.

    摘要翻译: 公开了用长链二元酸或二醇改性的聚对苯二甲酸乙二醇酯的柔性双轴取向膜。 这种材料在包装应用中很有用,其中抗挠曲开裂是重要的。

    Extrusion blow moldable copolyesters
    25.
    发明授权
    Extrusion blow moldable copolyesters 失效
    挤出吹塑成型共聚酯

    公开(公告)号:US4398022A

    公开(公告)日:1983-08-09

    申请号:US182906

    申请日:1980-09-02

    申请人: Bobby J. Sublett

    发明人: Bobby J. Sublett

    IPC分类号: C08G63/16 C08G63/18

    CPC分类号: C08G63/16 C08G63/18

    摘要: Disclosed are copolyesters which are capable of being extrusion blow molded into a variety of shapes such as, for example, bottles, films or the like. The copolyesters are derived from an acid component comprising terephthalic acid and 1,12-dodecanedioic acid, and a glycol component comprising 1,4-cyclohexanedimethanol.

    摘要翻译: 公开了能够被挤出吹塑成各种形状的共聚酯,例如瓶,膜等。 共聚酯衍生自包含对苯二甲酸和1,12-十二烷二酸的酸组分,以及包含1,4-环己烷二甲醇的二醇组分。

    Copolyester adhesives
    26.
    发明授权
    Copolyester adhesives 失效
    共聚酯粘合剂

    公开(公告)号:US4330670A

    公开(公告)日:1982-05-18

    申请号:US267102

    申请日:1981-05-26

    申请人: Bobby J. Sublett

    发明人: Bobby J. Sublett

    CPC分类号: C09J167/02 C08G63/199

    摘要: Copolyester adhesives are disclosed which are derived from 100 mole % of a dibasic acid component and 100 mole % of a glycol component, the dibasic acid component comprising at least 40 mole % of trans-1,4-cyclohexanedicarboxylic acid and the glycol component comprising at least 50 mole % 1,4-butanediol. The copolyester is characterized by having a melting point of about 40.degree.-130.degree. C., a glass transition temperature of about -20.degree. C. to about 40.degree. C., a heat of fusion of not less than 1.0 calorie per gram, and a crystalline half time of less than 10 minutes at maximum crystallization temperature. These copolyesters are useful as adhesives, and are especially useful as fusible interlining adhesives.

    摘要翻译: 公开了共聚酯粘合剂,其衍生自100摩尔%的二元酸组分和100摩尔%的二醇组分,二元酸组分包含至少40摩尔%的反式-1,4-环己烷二羧酸,并且所述二醇组分包含在 至少50摩尔%的1,4-丁二醇。 共聚酯的特征在于熔点为约40℃-130℃,玻璃化转变温度为约-20℃至约40℃,熔融热不低于1.0卡热/克, 并且在最大结晶温度下的晶体半衰期小于10分钟。 这些共聚酯可用作粘合剂,并且特别用作可熔衬布粘合剂。

    Process including depolymerization in polyester reactor for recycling
polyester materials
    28.
    发明授权
    Process including depolymerization in polyester reactor for recycling polyester materials 失效
    在聚酯反应器中解聚聚酯材料的方法

    公开(公告)号:US5559159A

    公开(公告)日:1996-09-24

    申请号:US570175

    申请日:1995-12-07

    IPC分类号: C08J11/22 C08J11/04

    摘要: Previously used poly(ethylene terephthalate) polyester materials and copolymers thereof, and in particular postconsumer polyester materials, are depolymerized and repolymerized to produce bottle grade polymer containing up to 75% of the previously used material. The process involves the solubilization and depolymerization of the previously used polyester material in a transesterification and/or polymerization mixture containing dimethylterephthalate, ethylene glycol and transesterification products thereof.

    摘要翻译: 以前使用的聚(对苯二甲酸乙二醇酯)聚酯材料及其共聚物,特别是后消费者聚酯材料,被解聚和再聚合,以生产含有高达75%以前使用的材料的瓶级聚合物。 该方法涉及先前使用的聚酯材料在含有对苯二甲酸二甲酯,乙二醇和其酯交换产物的酯交换和/或聚合混合物中的溶解和解聚。

    Thermoplastic copolyesters having improved gas barrier properties
    29.
    发明授权
    Thermoplastic copolyesters having improved gas barrier properties 失效
    具有改进的阻气性能的热塑性共聚酯

    公开(公告)号:US5552512A

    公开(公告)日:1996-09-03

    申请号:US540361

    申请日:1995-10-06

    申请人: Bobby J. Sublett

    发明人: Bobby J. Sublett

    CPC分类号: C08G63/189 C08G63/199

    摘要: Disclosed are thermoplastic copolyesters having improved gas barrier properties and which can be produced having little or no acetaldehyde. These copolyesters are especially useful in the manufacture of food packaging products, foodtrays, film and beverage bottles which require good oxygen and carbon dioxide barrier properties. The copolyesters comprise repeat units from about 10 to 100 mole percent repeat units from naphthalene dicarboxylic acid, about 90 to 0 mole percent repeat units from terephthalic acid and repeat units from essentially 100 mole percent 1,4-cyclohexanedimethanol, wherein said 1,4-cyclohexanedimethanol has a cis isomer content of at least 50% said copolyester having an I.V. of about 0.4-1.2.

    摘要翻译: 公开了具有改进的气体阻隔性能的热塑性共聚酯,其可以生产具有很少或没有乙醛。 这些共聚酯特别可用于制造需要良好的氧气和二氧化碳阻隔性能的食品包装产品,食品托盘,薄膜和饮料瓶。 共聚酯包含来自萘二甲酸的约10至100摩尔%的重复单元,来自对苯二甲酸的约90至0摩尔%的重复单元和基本上100摩尔%的1,4-环己烷二甲醇的重复单元的重复单元, 环己烷二甲醇具有至少50%的顺式异构体含量,所述共聚酯具有IV 约0.4-1.2。