Pipe
    1.
    发明授权
    Pipe 有权

    公开(公告)号:US11236847B2

    公开(公告)日:2022-02-01

    申请号:US16165795

    申请日:2018-10-19

    Abstract: A polyetheretherketone pipe of length greater than 250 meters and a residual stress of less than 5 MPa may be made using a calibrator device 2 which includes a cone shaped opening 6 arranged to receive a molten extruded pipe shaped polymer. Attached to the front member 4 is a vacuum plate 14a and successive vacuum plates 14b-14h are attached to one another to define an array of vacuum plates, the vacuum plates being arranged to allow a vacuum to be applied to a pipe precursor passing through opening 16. The vacuum plates 14 also include temperature control means for heating or cooling the plates and therefore heating or cooling a pipe precursor passing through the openings. With a vacuum applied to opening 6, 16 and heating/cooling the plates, an extruded hot plastics pipe is inserted into calibrator 2 via opening 6 and conveyed through opening 16 in plates 14, whereupon it is urged by the vacuum against the cylindrical surface defined by plates 14 to maintain its shape and the temperature of each plate is controlled to control the rate of cooling of the pipe precursor passing through. The pipe may be cooled at a relatively slow rate so that a pipe made from a relatively fast crystallising polymer crystalises and the crystallinity of the pipe along its extent and throughout its thickness is substantially constant.

    PIPE
    3.
    发明申请
    PIPE 审中-公开

    公开(公告)号:US20190120410A1

    公开(公告)日:2019-04-25

    申请号:US16165795

    申请日:2018-10-19

    Abstract: A polyetheretherketone pipe of length greater than 250 meters and a residual stress of less than 5 MPa may be made using a calibrator device 2 which includes a cone shaped opening 6 arranged to receive a molten extruded pipe shaped polymer. Attached to the front member 4 is a vacuum plate 14a and successive vacuum plates 14b-14h are attached to one another to define an array of vacuum plates, the vacuum plates being arranged to allow a vacuum to be applied to a pipe precursor passing through opening 16. The vacuum plates 14 also include temperature control means for heating or cooling the plates and therefore heating or cooling a pipe precursor passing through the openings. With a vacuum applied to opening 6, 16 and heating/cooling the plates, an extruded hot plastics pipe is inserted into calibrator 2 via opening 6 and conveyed through opening 16 in plates 14, whereupon it is urged by the vacuum against the cylindrical surface defined by plates 14 to maintain its shape and the temperature of each plate is controlled to control the rate of cooling of the pipe precursor passing through. The pipe may be cooled at a relatively slow rate so that a pipe made from a relatively fast crystallising polymer crystalises and the crystallinity of the pipe along its extent and throughout its thickness is substantially constant.

    Polymeric materials
    4.
    发明授权

    公开(公告)号:US10125257B2

    公开(公告)日:2018-11-13

    申请号:US14910958

    申请日:2014-07-14

    Inventor: Alan Wood

    Abstract: A component comprises a first part and a second part, wherein said second part is in contact with said first part, wherein: (i) said first part comprises a first polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties; (ii) said second part comprises a second polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties; (iii) the melting temperature (Tm) of the second polymer is less than the melting temperature (Tm) of the first polymer. In a preferred embodiment, said first polymer is polyetheretherketone and said second polymer is a copolymer having a repeat unit of formula VIII and a repeat unit of formula IX.

    Polymeric materials
    6.
    发明授权

    公开(公告)号:US10166727B2

    公开(公告)日:2019-01-01

    申请号:US15120299

    申请日:2015-02-13

    Abstract: A process for manufacturing an object by laser sintering comprises:(i) selecting a powder comprising a polymeric material having a repeat unit of formula —O—Ph—O—Ph—CO—Ph—  I and a repeat unit of formula —O—Ph—Ph—O—Ph—CO—Ph—  II wherein Ph represents a phenylene moiety; and (ii) selectively sintering the powder to produce the object.It is found that the polymer used can be advantageously recycled and blended with virgin material to produce a blend which has very similar mechanical properties and crystallinity compared to the virgin material. Thus, the polymer may be cost-effectively used in laser sintering.

    POLYMERIC MATERIALS
    7.
    发明申请
    POLYMERIC MATERIALS 审中-公开
    聚合材料

    公开(公告)号:US20160208090A1

    公开(公告)日:2016-07-21

    申请号:US14910958

    申请日:2014-07-14

    Inventor: Alan Wood

    Abstract: A component comprises a first part and a second part, wherein said second part is in contact with said first part, wherein: (i) said first part comprises a first polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties; (ii) said second part comprises a second polymer which is semi-crystalline and includes phenylene moieties, carbonyl moieties and ether moieties; (iii) the melting temperature (Tm) of the second polymer is less than the melting temperature (Tm) of the first polymer. In a preferred embodiment, said first polymer is polyetheretherketone and said second polymer is a copolymer having a repeat unit of formula VIII and a repeat unit of formula IX.

    Abstract translation: 组分包括第一部分和第二部分,其中所述第二部分与所述第一部分接触,其中:(i)所述第一部分包含半结晶的第一聚合物,并且包括亚苯基部分,羰基部分和醚部分 ; (ii)所述第二部分包含半结晶的第二聚合物,包括亚苯基部分,羰基部分和醚部分; (iii)第二聚合物的熔融温度(Tm)小于第一聚合物的熔融温度(Tm)。 在优选的实施方案中,所述第一聚合物是聚醚醚酮,所述第二聚合物是具有式VIII重复单元和式IX重复单元的共聚物。

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