Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET)
    3.
    发明授权
    Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET) 有权
    从聚对苯二甲酸乙二醇酯(PET)制造聚对苯二甲酸丁二醇酯(PBT)的方法

    公开(公告)号:US07902263B2

    公开(公告)日:2011-03-08

    申请号:US11626684

    申请日:2007-01-24

    IPC分类号: C08J11/04

    摘要: The invention relates to a process for making modified polybutylene terephthalate random copolymers from a polyethylene terephthalate component. In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from processes of the invention.

    摘要翻译: 本发明涉及一种由聚对苯二甲酸乙二醇酯组分制备改性聚对苯二甲酸丁二醇酯无规共聚物的方法。 在一个实施方案中,本发明涉及二步法,其中1,4-丁二醇组分在聚对苯二甲酸乙二醇酯组分解聚熔融混合物的条件下与聚对苯二甲酸乙二醇酯组分反应,并将熔融混合物置于低于大气压的条件下 生产改性聚对苯二甲酸丁二醇酯无规共聚物。 在另一个实施方案中,本发明涉及三步法,其中选自乙二醇,丙二醇及其组合的二醇组分在足以使聚对苯二甲酸乙二醇酯组分解聚为第一 熔融混合物 并且其中在产生第二熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合,随后将其置于产生改性聚对苯二甲酸丁二醇酯无规共聚物的低于大气压条件下。 本发明还涉及由本发明的方法制备的组合物。

    Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET)
    6.
    发明授权
    Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET) 有权
    从聚对苯二甲酸乙二醇酯(PET)制造聚对苯二甲酸丁二醇酯(PBT)的方法

    公开(公告)号:US08138233B2

    公开(公告)日:2012-03-20

    申请号:US13021093

    申请日:2011-02-04

    IPC分类号: C08J11/04

    摘要: In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from processes of the invention.

    摘要翻译: 在一个实施方案中,本发明涉及二步法,其中1,4-丁二醇组分在聚对苯二甲酸乙二醇酯组分解聚熔融混合物的条件下与聚对苯二甲酸乙二醇酯组分反应,并将熔融混合物置于低于大气压的条件下 生产改性聚对苯二甲酸丁二醇酯无规共聚物。 在另一个实施方案中,本发明涉及三步法,其中选自乙二醇,丙二醇及其组合的二醇组分在足以将聚对苯二甲酸乙二醇酯组分解聚为第一 熔融混合物 并且其中在产生第二熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合,随后将其置于产生改性聚对苯二甲酸丁二醇酯无规共聚物的低于大气压条件下。 本发明还涉及由本发明的方法制备的组合物。

    PROCESS FOR MAKING POLYBUTYLENE TEREPHTHALATE (PBT) FROM POLYETHYLENE TEREPHTHALATE (PET)
    7.
    发明申请
    PROCESS FOR MAKING POLYBUTYLENE TEREPHTHALATE (PBT) FROM POLYETHYLENE TEREPHTHALATE (PET) 有权
    聚苯乙烯聚苯乙烯(PET)制备聚苯乙烯(PBT)的方法

    公开(公告)号:US20110124821A1

    公开(公告)日:2011-05-26

    申请号:US13021093

    申请日:2011-02-04

    IPC分类号: C08G63/91

    摘要: In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. The invention also relates to compositions made from processes of the invention.

    摘要翻译: 在一个实施方案中,本发明涉及二步法,其中1,4-丁二醇组分在聚对苯二甲酸乙二醇酯组分解聚熔融混合物的条件下与聚对苯二甲酸乙二醇酯组分反应,并将熔融混合物置于低于大气压的条件下 生产改性聚对苯二甲酸丁二醇酯无规共聚物。 在另一个实施方案中,本发明涉及三步法,其中选自乙二醇,丙二醇及其组合的二醇组分在足以将聚对苯二甲酸乙二醇酯组分解聚为第一 熔融混合物 并且其中在产生第二熔融混合物的条件下将第一熔融混合物与1,4-丁二醇组合,随后将其置于产生改性聚对苯二甲酸丁二醇酯无规共聚物的低于大气压条件下。 本发明还涉及由本发明的方法制备的组合物。