Thermally stable polycarbonates, thermoplastic compositions thereof, and articles formed therefrom
    1.
    发明授权
    Thermally stable polycarbonates, thermoplastic compositions thereof, and articles formed therefrom 有权
    热稳定的聚碳酸酯,其热塑性组合物和由其形成的制品

    公开(公告)号:US07531615B2

    公开(公告)日:2009-05-12

    申请号:US11324949

    申请日:2006-01-04

    IPC分类号: C08G64/00 C08G63/02

    摘要: A polycarbonate such as aliphatic/aromatic polycarbonate comprises repeating structural carbonate units of the formula (H-1): in which Rh is a radical having the formula (H-2): wherein each of R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, and R28 is independently a hydrogen, a C1-C6 alkyl group, or a halogen substituted C1-C6 alkyl group. The polycarbonate, and a thermoplastic composition thereof, have improved thermal stability, cost-effectiveness, and exhibit improved manufacturability such as, for example, minimum cyclic carbonate formation and minimum amine acceptor requirement.

    摘要翻译: 聚碳酸酯如脂肪族/芳香族聚碳酸酯包括重复式(H-1)的结构碳酸酯单元:其中Rh是具有式(H-2)的基团:其中R11,R12,R13,R14,R15, R16,R17,R18,R19,R20,R21,R22,R23,R24,R25,R26,R27和R28独立地为氢,C1-C6烷基或卤素取代的C1-C6烷基。 聚碳酸酯及其热塑性组合物具有改进的热稳定性,成本效益,并且显示出改进的可制造性,例如最小的环状碳酸酯形成和最小的胺受体要求。

    Universal slab removal device
    2.
    发明授权

    公开(公告)号:US10227218B1

    公开(公告)日:2019-03-12

    申请号:US15728531

    申请日:2017-10-10

    申请人: Joshua J. Stone

    发明人: Joshua J. Stone

    IPC分类号: B66C1/66 E04G21/14

    摘要: A universal slab removal device for picking up and moving large slabs of cement, concrete or any other types of heavy solid material using any type of lifting machine. The universal slab removal device includes an anchor assembly including an elongated anchor member adapted to be fastened to a slab of heavy solid material such as cement, pavement, and stone and be lifted with a lifting apparatus such as a fork lift and the like.