Process for preparing hydrolytically stable poly
(ethylene-2,6-naphthalene dicarboxylate) polymers
    12.
    发明授权
    Process for preparing hydrolytically stable poly (ethylene-2,6-naphthalene dicarboxylate) polymers 失效
    制备水解稳定的聚(乙烯-2,6-萘二甲酸酯)聚合物的方法

    公开(公告)号:US5321074A

    公开(公告)日:1994-06-14

    申请号:US096400

    申请日:1993-07-26

    摘要: The present invention relates to a process for preparing poly(ethylene-2,6-naphthalene dicarboxylate) polymers wherein a low concentrations of an alkali metal salt is present. More specifically, 15 ppm to 100 ppm of an alkali metal derived from an alkali metal salt is added in the melt polymerization reaction mixture during formation of such polymers. The polymers are useful in applications where improved hydrolytic stability at elevated temperatures and high humidity (>50% relative humidity) are required.

    摘要翻译: 本发明涉及一种制备聚(乙烯-2,6-萘二羧酸酯)聚合物的方法,其中存在低浓度的碱金属盐。 更具体地,在形成这种聚合物期间,在熔融聚合反应混合物中加入15ppm至100ppm的源自碱金属盐的碱金属。 聚合物可用于需要在高温和高湿度(> 50%相对湿度)下提高水解稳定性的应用。

    Modified poly(tetramethylene terephthalate)
    13.
    发明授权
    Modified poly(tetramethylene terephthalate) 失效
    改性聚对苯二甲酸丁二醇酯

    公开(公告)号:US4439598A

    公开(公告)日:1984-03-27

    申请号:US503463

    申请日:1983-06-13

    IPC分类号: C08G63/199 C08G63/54

    CPC分类号: C08G63/199

    摘要: Poly(tetramethylene terephthalate) modified with an aliphatic dicarboxylic acid having 4-12 carbon atoms and either dimer acid or dimer glycol. This copolyester is blow moldable and is found to have improved resistance to gamma radiation.

    摘要翻译: 用具有4-12个碳原子的脂族二羧酸和二聚酸或二聚体二醇改性的聚(对苯二甲酸丁二酯)。 该共聚酯是可吹塑的并被发现具有改善的耐γ辐射性。

    Stabilized copolyester material
    14.
    发明授权
    Stabilized copolyester material 失效
    稳定的共聚酯材料

    公开(公告)号:US4340718A

    公开(公告)日:1982-07-20

    申请号:US155811

    申请日:1980-06-02

    IPC分类号: C08G63/54 C08G63/60 C08G63/68

    CPC分类号: C08G63/60 C08G63/54 C08G63/68

    摘要: Disclosed are novel copolyester materials having improved weatherability and useful, for example, as films, fibers, sheeting and the like in outdoor applications where long and daily exposure to actinic radiation is encountered. These copolyesters comprise, for example, polyethylene terephthalate containing a total of from about 0.3 to about 5.0%, preferably from about 0.6 to about 2.0% by weight of one or more moieties having the formula ##STR1## where R.sub.1 is cyano, alkylcarbonyl, cycloalkylcarbonyl or arylcarbonyl; R.sub.2 and R.sub.3 are, for example, alkyl, cycloalkyl, or aryl which may be substituted with a large variety of groups; and --X-- is ortho, meta, or para to the -ylene linkage and is selected from groups of the formulae ##STR2## wherein R is alkylene of 1-10 carbons, aryl, or cycloalkyl, each of which may be substituted.

    摘要翻译: 公开了具有改善的耐候性的新型共聚酯材料,例如在室外应用中,例如在遇到长时间和日常暴露于光化辐射的室外应用中是有用的。 这些共聚酯包括例如聚对苯二甲酸乙二醇酯,其总重量为约0.3至约5.0%,优选约0.6至约2.0%重量的一种或多种具有式的化合物其中R 1为氰基,烷基羰基,环烷基羰基 或芳基羰基; R2和R3是例如可以被各种基团取代的烷基,环烷基或芳基; 并且-X-是亚芳基键的邻位,间位或对位,并且选自下式的基团:其中R是1-10个碳的亚烷基,芳基或环烷基,其中每一个 可以被替代。

    Polyester fiber
    15.
    发明授权
    Polyester fiber 失效
    聚酯纤维

    公开(公告)号:US4056356A

    公开(公告)日:1977-11-01

    申请号:US664841

    申请日:1976-03-08

    IPC分类号: D01F6/92 D01F6/62 D01F9/08

    CPC分类号: D01F6/92 Y10S8/04 Y10S8/922

    摘要: Disclosed is a textile fiber comprised of a poly(oxyethylene)-glycol modified poly(1,4-cyclohexylenedimethylene terephthalate) type polyester containing phosphorus, a stabilizer, an organic titanium compound, and optionally a manganous ion. The fiber exhibits an unobvious combination of commercially acceptable mechanical properties, commercially acceptable lightfastness, commercially acceptable gasfastness, and commercially acceptable dye rate.

    摘要翻译: 公开了由含有磷,稳定剂,有机钛化合物和任选的二价锰离子的聚(氧乙烯) - 二醇改性的聚(1,4-环己烯二亚甲基对苯二甲酸酯)型聚酯构成的纺织纤维。 纤维表现出商业上可接受的机械性能,商业上可接受的耐光性,商业上可接受的耐气体性和商业上可接受的染料速率的非显而易见的组合。

    Copolyesters of 1,3-propanediol having improved gas barrier properties
    16.
    发明授权
    Copolyesters of 1,3-propanediol having improved gas barrier properties 失效
    具有改进的气体阻隔性能的1,3-丙二醇的共聚物

    公开(公告)号:US5989665A

    公开(公告)日:1999-11-23

    申请号:US267373

    申请日:1999-03-15

    摘要: The invention relates to a copolyester having an inherent viscosity ranging from about 0.4 to about 1.4 and a cold crystallization temperature ranging from about 120 to about 160.degree. C. Such copolyesters comprise the reaction product of a glycol component comprising from about 85 to about 100 mole % of 1,3-propanediol, a dibasic acid component comprising from about 85 to about 100 mole % of a dibasic acid selected from terephthalic acid, napthalenedicarboxylic acid, anhydrides, acid chlorides, and lower alkyl esters thereof, and mixtures thereof, and from about 5 to about 15 mole % of a comonomer. The presence of the comonomer lowers the crystallization temperature of the copolyesters according to the invention such that amorphous preforms can be easily molded from the copolyesters. Such amorphous preforms are readily stretch blow molded into bottles or other container shapes or may be injection molded into various shapes or objects or extruded into film or sheeting. Accordingly, in another embodiment of the invention relates to film and containers prepared from the copolyester composition described above. The films and containers according to the invention have improved gas barrier properties such that they may be used for packaging perishable goods, such as beverages, foods, and cosmetics.

    摘要翻译: 本发明涉及具有约0.4至约1.4的特性粘度和约120至约160℃的冷结晶温度的共聚多酯。这种共聚酯包含二醇组分的反应产物,其包含约85至约100摩尔 %的1,3-丙二醇,二元酸组分,其包含约85至约100摩尔%的选自对苯二甲酸,萘二甲酸,酸酐,酰氯和其低级烷基酯的二元酸及其混合物,以及 约5至约15摩尔%的共聚单体。 共聚单体的存在降低了根据本发明的共聚酯的结晶温度,使得非晶预成型体可以容易地从共聚酯模塑。 这种无定型预成型件容易地拉伸吹塑成瓶或其它容器形状,或者可以注塑成各种形状或物体或挤出成膜或片材。 因此,在本发明的另一个实施方案中涉及由上述共聚聚酯组合物制备的膜和容器。 根据本发明的薄膜和容器具有改进的阻气性能,使得它们可用于包装易腐食品,例如饮料,食品和化妆品。

    Orientable, heat setable semi-crystalline copolyesters
    17.
    发明授权
    Orientable, heat setable semi-crystalline copolyesters 失效
    可定向的,可热固化的半结晶共聚酯

    公开(公告)号:US5616404A

    公开(公告)日:1997-04-01

    申请号:US541746

    申请日:1995-10-10

    申请人: Bobby J. Sublett

    发明人: Bobby J. Sublett

    摘要: Disclosed are orientable, heat setable, semi-crystalline copolyesters which have high glass transition temperatures. These copolyesters have high heat distortion temperatures along with excellent molding and film properties which makes them useful in packaging materials and molded parts. These copolyesters have repeat units from about 100 mol % 1,4-cyclohexanedimethanol, about 1-99 mol % terephthalic acid and about 99-1 mol % naphthalene dicarboxylic acid.

    摘要翻译: 公开了具有高玻璃化转变温度的可取向的,可热固化的半结晶共聚酯。 这些共聚酯具有高的热变形温度以及优异的成型和膜性能,使得它们在包装材料和模制部件中是有用的。 这些共聚酯具有约100摩尔%1,4-环己烷二甲醇,约1-99摩尔%对苯二甲酸和约99-1摩尔%萘二甲酸的重复单元。

    Foamable copolyesters
    18.
    发明授权
    Foamable copolyesters 失效
    可发泡共聚酯

    公开(公告)号:US5399595A

    公开(公告)日:1995-03-21

    申请号:US293628

    申请日:1994-08-22

    IPC分类号: C08J9/04

    CPC分类号: C08J9/04 C08J2367/02

    摘要: Disclosed are foamable copolyester compositions containing 0.5 to 5.0 mole percent of a dicarboxylic acid sulfomonomer which contains at least one metal sulfonate group attached to an aromatic nucleus. These copolyesters possess high melt viscosity and are readily foamable with a wide range of foaming agents to provide low density shaped articles, films, and sheets.

    摘要翻译: 公开了含有0.5至5.0摩尔%的含有至少一个连接到芳香核上的金属磺酸盐基团的二羧酸磺基单体的可发泡共聚酯组合物。 这些共聚酯具有高的熔融粘度,并且可以用宽范围的发泡剂容易地发泡,以提供低密度成形的制品,薄膜和薄片。