Copolyesters and blends with improved recyclability, processes for their manufacture, and articles prepared therefrom
    3.
    发明授权
    Copolyesters and blends with improved recyclability, processes for their manufacture, and articles prepared therefrom 有权
    具有改善的可回收性的共聚酯和共混物,其制造方法和由其制备的制品

    公开(公告)号:US08980389B2

    公开(公告)日:2015-03-17

    申请号:US12255237

    申请日:2008-10-21

    摘要: Described as one aspect of the invention are extrusion blow molded articles comprising at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 90 to about 100 mole % of terephthalic acid residues; (ii) about 0 to about 10 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; and (b) a glycol component comprising: (i) about 42 to about 60 mole % ethylene glycol residues; and (ii) about 40 to about 58 mole % residues of 1,4-cyclohexanedimethanol; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.0 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25° C.

    摘要翻译: 描述为本发明的一个方面的是包含至少一种聚酯的挤出吹塑制品,其包含:(a)二羧酸组分,其包含:(i)约90至约100摩尔%的对苯二甲酸残基; (ii)约0至约10摩尔%的具有至多20个碳原子的芳族和/或脂族二羧酸残基; 和(b)二元醇组分,其包含:(i)约42至约60摩尔%的乙二醇残基; 和(ii)1,4-环己烷二甲醇的约40至约58摩尔%的残余物; 其中二羧酸组分的总摩尔%为100摩尔%,其中二醇组分的总摩尔%为100摩尔%; 并且其中在25℃下浓度为0.25g / 50ml的60/40(wt / wt)苯酚/四氯乙烷中测定的聚酯的特性粘度为0.50至1.0dL / g。

    COPOLYESTERS AND BLENDS WITH IMPROVED RECYCLABILITY, PROCESSES FOR THEIR MANUFACTURE, AND ARTICLES PREPARED THEREFROM
    4.
    发明申请
    COPOLYESTERS AND BLENDS WITH IMPROVED RECYCLABILITY, PROCESSES FOR THEIR MANUFACTURE, AND ARTICLES PREPARED THEREFROM 有权
    具有改进可回收性的共聚物和共混物,其制备方法及其制备的制品

    公开(公告)号:US20090181196A1

    公开(公告)日:2009-07-16

    申请号:US12255237

    申请日:2008-10-21

    摘要: Described as one aspect of the invention are extrusion blow molded articles comprising at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 90 to about 100 mole % of terephthalic acid residues; (ii) about 0 to about 10 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; and (b) a glycol component comprising: (i) about 42 to about 60 mole % ethylene glycol residues; and (ii) about 40 to about 58 mole % residues of 1,4-cyclohexanedimethanol; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %; and wherein the inherent viscosity of the polyester is from 0.50 to 1.0 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.25 g/50 ml at 25° C.

    摘要翻译: 描述为本发明的一个方面的是包含至少一种聚酯的挤出吹塑制品,其包含:(a)二羧酸组分,其包含:(i)约90至约100摩尔%的对苯二甲酸残基; (ii)约0至约10摩尔%的具有至多20个碳原子的芳族和/或脂族二羧酸残基; 和(b)二元醇组分,其包含:(i)约42至约60摩尔%的乙二醇残基; 和(ii)1,4-环己烷二甲醇的约40至约58摩尔%的残余物; 其中二羧酸组分的总摩尔%为100摩尔%,其中二醇组分的总摩尔%为100摩尔%; 并且其中在25℃下浓度为0.25g / 50ml的60/40(wt / wt)苯酚/四氯乙烷中测定的聚酯的特性粘度为0.50至1.0dL / g。

    Polyester-polycarbonate blends useful for extrusion blow-molding

    公开(公告)号:US07345104B2

    公开(公告)日:2008-03-18

    申请号:US10982305

    申请日:2004-11-05

    IPC分类号: C08L69/00 C08L67/02

    摘要: Blends of polycarbonate and copolyester that are capable of being extrusion blow-molded are described. The blends preferably comprise (I) about 1 to 99% by weight of a linear or branched polycarbonate and (II) about 1 to 99% by weight of a mixture of (i) about 40 to 100% by weight of a first copolyester and (ii) about 0 to 60% by weight of a second copolyester. The first copolyester preferably comprises (A) diacid residues comprising terephthalic acid residues, (B) diol residues comprising about 45 to 75 mole percent of 1,4-cyclohexanedimethanol (CHDM) residues and about 25 to 55 mole percent of ethylene glycol residues, and (C) about 0.05 to 1.0 mole percent of the residue of a trifunctional monomer. The optional second copolyester preferably comprises (A) diacid residues comprising terephthalic acid residues and (B) diol residues comprising about 52 to 90 mole percent of CHDM residues and about 10 to 48 mole percent of ethylene glycol residues. Preferably, the average amount of CHDM residues in the copolyester mixture II ranges from 52 to 75 mole percent. It has been surprisingly found that the presence of the trifunctional residues in the first copolyester can impart sufficient melt strength for the blends to be extrusion blow-molded. Containers and shaped articles made from the blends as well as a method of making the articles are also described.