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845 条记录 (耗时 0.027 秒)

    Process for preparation of polyolefins via living coordinative chain transfer polymerization
    3.
    发明授权
    Process for preparation of polyolefins via living coordinative chain transfer polymerization 有权
    通过活性配位链转移聚合制备聚烯烃的方法

    公开(公告)号：US08188200B2

    公开(公告)日：2012-05-29

    申请号：US12742055

    申请日：2008-11-10

    申请人： Lawrence R. Sita ,  Wei Zhang

    发明人： Lawrence R. Sita ,  Wei Zhang

    IPC分类号： C08F4/642 ,  C08F4/643 ,  C08F4/6592 ,  C08F293/00

    CPC分类号： C08F10/00 ,  C08F4/65908 ,  C08F4/6592 ,  C08F10/02 ,  C08F210/02 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/65912 ,  C08F2/38 ,  C08F236/20 ,  C08F2500/03 ,  C08F210/14

    摘要： Disclosed is a method of producing a polyolefin composition comprising contacting a metallocene pre-catalyst, co-catalyst, and a stoichiometric excess of a metal alkyl; adding a first olefin monomer; and polymerizing the first monomer for a time sufficient to form the polyolefin. The method allows for the use of minimum amounts of activating co-catalyst and metallocene pre-catalyst. Also disclosed is a method of producing a block polyolefin composition comprising contacting a metallocene pre-catalyst, a co-catalyst, and a stoichiometric excess of a metal alkyl; adding a first olefin monomer; polymerizing the first monomer for a time sufficient to form the polyolefin; adding a second monomer; and polymerizing the second olefin monomer for a time sufficient to form said block polyolefin composition. Also disclosed are amorphous atactic polymer and copolymer compositions made according to the present invention.

    摘要翻译： 公开了一种生产聚烯烃组合物的方法，包括使茂金属预催化剂，助催化剂和化学计量过量的金属烷基接触; 加入第一种烯烃单体; 并使第一单体聚合足以形成聚烯烃的时间。 该方法允许使用最少量的活化助催化剂和茂金属预催化剂。 还公开了一种制备嵌段聚烯烃组合物的方法，包括使茂金属预催化剂，助催化剂和化学计量过量的金属烷基接触; 加入第一种烯烃单体; 使第一单体聚合足以形成聚烯烃的时间; 加入第二单体; 并使第二烯烃单体聚合足以形成所述嵌段聚烯烃组合物的时间。 还公开了根据本发明制备的无定形无规立构聚合物和共聚物组合物。

    Process for Preparation of Polyolefins Via Living Coordinative Chain Transfer Polymerization
    4.
    发明申请
    Process for Preparation of Polyolefins Via Living Coordinative Chain Transfer Polymerization 有权
    通过生活协调链转移聚合制备聚烯烃的方法

    公开(公告)号：US20110028654A1

    公开(公告)日：2011-02-03

    申请号：US12742055

    申请日：2008-11-10

    申请人： Lawrence R. Sita ,  Wei Zhang

    发明人： Lawrence R. Sita ,  Wei Zhang

    IPC分类号： C08F110/02 ,  C08F110/06 ,  C08F110/14 ,  C08F136/20 ,  C08F4/76 ,  C08F4/52 ,  C08F4/50 ,  C08F293/00

    CPC分类号： C08F10/00 ,  C08F4/65908 ,  C08F4/6592 ,  C08F10/02 ,  C08F210/02 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/65912 ,  C08F2/38 ,  C08F236/20 ,  C08F2500/03 ,  C08F210/14

    摘要： Disclosed is a method of producing a polyolefin composition comprising contacting a metallocene pre-catalyst, co-catalyst, and a stoichiometric excess of a metal alkyl; adding a first olefin monomer; and polymerizing the first monomer for a time sufficient to form the polyolefin. The method allows for the use of minimum amounts of activating co-catalyst and metallocene pre-catalyst. Also disclosed is a method of producing a block polyolefin composition comprising contacting a metallocene pre-catalyst, a co-catalyst, and a stoichiometric excess of a metal alkyl; adding a first olefin monomer; polymerizing the first monomer for a time sufficient to form the polyolefin; adding a second monomer; and polymerizing the second olefin monomer for a time sufficient to form said block polyolefin composition. Also disclosed are amorphous atactic polymer and copolymer compositions made according to the present invention.

    摘要翻译： 公开了一种生产聚烯烃组合物的方法，包括使茂金属预催化剂，助催化剂和化学计量过量的金属烷基接触; 加入第一种烯烃单体; 并使第一单体聚合足以形成聚烯烃的时间。 该方法允许使用最少量的活化助催化剂和茂金属预催化剂。 还公开了一种制备嵌段聚烯烃组合物的方法，包括使茂金属预催化剂，助催化剂和化学计量过量的金属烷基接触; 加入第一种烯烃单体; 使第一单体聚合足以形成聚烯烃的时间; 加入第二单体; 并使第二烯烃单体聚合足以形成所述嵌段聚烯烃组合物的时间。 还公开了根据本发明制备的无定形无规立构聚合物和共聚物组合物。

    Outdoor lamp
    5.
    外观设计
    Outdoor lamp 有权

    公开(公告)号：USD1004162S1

    公开(公告)日：2023-11-07

    申请号：US29743460

    申请日：2020-07-22

    申请人： Bruce Pi ,  Wei Kang ,  Zhixiang Chen ,  Wei Zhang

    设计人： Bruce Pi ,  Wei Kang ,  Zhixiang Chen ,  Wei Zhang

    摘要： FIG. 1 is a perspective view of an outdoor lamp showing our new design.
    FIG. 2 is a front elevation view thereof;
    FIG. 3 is a rear elevation view thereof;
    FIG. 4 is a left side elevation view thereof;
    FIG. 5 is a right side elevation view thereof;
    FIG. 6 is a top plan view thereof; and,
    FIG. 7 is a bottom plan view thereof.

    APPARATUS AND METHODS FOR EXPANDING AND COLLAPSING A ROD
    6.
    发明申请
    APPARATUS AND METHODS FOR EXPANDING AND COLLAPSING A ROD 有权

    公开(公告)号：US20220110303A1

    公开(公告)日：2022-04-14

    申请号：US17067711

    申请日：2020-10-11

    申请人： Wei Zhang

    发明人： Wei Zhang

    IPC分类号： A01K87/02

    摘要： Methods and apparatus for expanding a rod from a collapsed position to a formed position are disclosed. One such apparatus includes a plurality of segments for forming the body of the collapsible rod including with each segment coupled to each immediately adjacent segment of the plurality of segments. The apparatus may include a coupler for coupling each segment of the plurality of segments to each immediately adjacent segment of the plurality of segments. The coupler may stretch from a base segment to the tip of the apparatus and may be biased to apply a force to hold the plurality of segments in a formed position and to urge the plurality of segments into a formed position from a collapsed position. In the formed position, the plurality of segments may be aligned end-to-end to form a rod and in the collapsed position, the plurality of segments may be folded against each other such that cylindrical walls of each of the plurality of segments are positioned adjacent each other.

    Convertible Bullet-proof Backpack
    7.
    发明申请
    Convertible Bullet-proof Backpack 审中-公开

    公开(公告)号：US20180295974A1

    公开(公告)日：2018-10-18

    申请号：US15731045

    申请日：2017-04-12

    申请人： Wei Zhang

    发明人： Wei Zhang

    IPC分类号： A45F4/02 ,  F41H1/02 ,  A45C15/00 ,  F41H5/08

    CPC分类号： A45F4/02 ,  A45C3/001 ,  A45C7/0068 ,  A45C13/103 ,  A45C15/00 ,  A45F3/04 ,  A45F3/06 ,  F41H1/00 ,  F41H1/02 ,  F41H5/00 ,  F41H5/08

    摘要： A convertible bullet-proof backpack and vest includes a body section divided into a front portion, a middle portion, and back portion. The middle portion has a head slot opening, and the front and back portions have respective sections of bullet-proof fabric integrated therein. A zipper runs around an outer perimeter of the front and back portions. In a backpack configuration, the front portion and the back portion fold toward each other and the zipper secures the outer perimeters of the front portion and the back portion together thereby forming a hollow backpack interior between them. In a bullet-proof vest configuration, the zipper is unzipped thereby allowing a user to insert their head through the head slot opening such that the front portion hangs in front of a torso of the user and the back portion hangs behind the torso of the user.

    APPARATUS AND METHOD FOR TREATING MALE IMPOTENCE
    8.
    发明申请
    APPARATUS AND METHOD FOR TREATING MALE IMPOTENCE 审中-公开

    公开(公告)号：US20180177625A1

    公开(公告)日：2018-06-28

    申请号：US15820401

    申请日：2017-11-21

    申请人： Wei Zhang

    发明人： Wei Zhang

    IPC分类号： A61F5/41

    CPC分类号： A61F5/41 ,  A61F2005/411

    摘要： The present invention strategically utilizes the sturdiness of thin wires enwrapped inside a thick layer of soft material such as silicone rubber which is smoother and softer than human tissue. Therefore, the device doesn't cause any damage or side effect and feels comfortable to user. The exposure of skin is 90% or higher, therefore solves the lack of sensation issue faced by prior art devices. The device is hard and yet flexible, the side walls or double bars are positioned toward ventral side of the device so that it is pleasing to the eye during use in addition to feeling good by the user.

    Electron donor-fullerene conjugated molecules for organic photovoltaic cells
    10.
    发明授权
    Electron donor-fullerene conjugated molecules for organic photovoltaic cells 有权
    用于有机光伏电池的电子供体 - 富勒烯共轭分子

    公开(公告)号：US09478746B2

    公开(公告)日：2016-10-25

    申请号：US13911351

    申请日：2013-06-06

    申请人： Xiong Gong ,  Stephen Z. D. Cheng ,  Wei Zhang

    发明人： Xiong Gong ,  Stephen Z. D. Cheng ,  Wei Zhang

    IPC分类号： H01L51/00 ,  H01L51/42

    CPC分类号： H01L51/0047 ,  H01L51/0037 ,  H01L51/0043 ,  H01L51/0077 ,  H01L51/4253 ,  H01L2251/308 ,  Y02E10/549

    摘要： A photovoltaic cell has an active area formed electron donor-fullerene conjugated molecules. The electron donor is formed of a polymer, which is conjugated with an electron acceptor, such as fullerene. By conjugating the fullerene, such as C60, with electron donor moieties, such as that of the polymer, double channels are formed therebetween, whereby one channel provides hole transport and the other channel provides electron transport. As a result, the electronic coupling between the fullerene and the electron donor moiety leads to increased short-circuit current density (Jsc) and increased open-circuit voltage (Voc), resulting in high power conversion efficacy (PCE) in the solar cell.

    摘要翻译： 光伏电池具有形成的电子供体 - 富勒烯共轭分子的有源区。 电子给体由与电子受体（例如富勒烯）共轭的聚合物形成。 通过将诸如C60的富勒烯与诸如聚合物的电子供体部分共轭，在其间形成双通道，由此一个通道提供空穴传输，另一个通道提供电子传输。 结果，富勒烯和电子给体部分之间的电子耦合导致短路电流密度（Jsc）增加和开路电压（Voc）增加，导致太阳能电池中的高功率转换效率（PCE）。