Quantitative preparation of allyl telechelic polyisobutylene under reflux conditions

    公开(公告)号:US10329361B2

    公开(公告)日:2019-06-25

    申请号:US15795638

    申请日:2017-10-27

    摘要: In one or more embodiments, the present invention provides a method for forming allyl telechelic polyisobutylene polymers having well defined molecular weights and molecular weight distributions using living cationic polymerization under ideal temperature control using a mixture of polar and nonpolar refluxing solvents. The methods according to various embodiments of the present invention provide temperature control that approaches the ideal, i.e., the heat of polymerization is instantaneously absorbed by the medium and the temperature of the system remains unchanged. The heat generated during the exothermic polymerization of isobutylene is released as an increase in the rate of reflux, rather than the temperature, since the temperature is set by the boiling point of the system and does not change.

    System and method for single sensor geolocation
    8.
    发明授权
    System and method for single sensor geolocation 失效
    单传感器地理位置的系统和方法

    公开(公告)号:US07974633B2

    公开(公告)日:2011-07-05

    申请号:US11505950

    申请日:2006-08-18

    IPC分类号: H04W24/00

    CPC分类号: H04W64/00 G01S5/0252 G01S5/14

    摘要: A system and method for determining a position of a wireless mobile device. The method comprising the steps of providing one base station in communication with the mobile device, providing a sensor spaced apart a known distance from the base station, and determining the range between the mobile device and the base station. The time of arrival of a signal transmitted from the mobile device is measured at the sensor and a set of coordinates is calculated for the mobile device relative to the sensor as a function of the known distance from the sensor to the base station, the range between the mobile device and the base station, an estimate of base station transmission timing relative to a time source, and the time of arrival. One of the set of coordinates may then be chosen to thereby determine a position of the mobile device relative to the sensor.

    摘要翻译: 一种用于确定无线移动设备的位置的系统和方法。 该方法包括以下步骤:提供与移动设备通信的一个基站,提供与基站间隔开已知距离的传感器,以及确定移动设备与基站之间的距离。 在传感器处测量从移动设备发送的信号的到达时间,并且针对移动设备相对于传感器计算一组坐标作为从传感器到基站的已知距离的函数, 移动设备和基站,相对于时间源的基站传输定时的估计以及到达时间。 然后可以选择坐标系中的一个,从而确定移动设备相对于传感器的位置。

    IMPLANTABLE DEVICES FOR PRODUCING INSULIN
    9.
    发明申请
    IMPLANTABLE DEVICES FOR PRODUCING INSULIN 有权
    用于生产胰岛素的可植入装置

    公开(公告)号:US20100209468A1

    公开(公告)日:2010-08-19

    申请号:US12439057

    申请日:2007-08-29

    摘要: The present invention generally relates to implantable devices for producing insulin in diabetic animals. Some embodiments include amphiphilic biomembranes for use in biological applications (e.g., as an alternative and/or supplemental insulin source). Some embodiments also include live insulin-producing cells contained within one or more amphiphilic membranes so as to prevent or diminish an immuno-response and/or rejection by the host.

    摘要翻译: 本发明一般涉及用于在糖尿病动物中产生胰岛素的可植入装置。 一些实施方案包括用于生物应用的两亲生物膜(例如,作为替代和/或补充胰岛素源)。 一些实施方案还包括含在一个或多个两亲膜内的活的产生胰岛素的细胞,以便防止或减少宿主的免疫应答和/或排斥。

    AMPHIPHILIC NETWORKS, PROCESS FOR PRODUCING SAME, AND PRODUCTS MADE THEREFROM
    10.
    发明申请
    AMPHIPHILIC NETWORKS, PROCESS FOR PRODUCING SAME, AND PRODUCTS MADE THEREFROM 有权
    制造网络,其生产方法以及其制造的产品

    公开(公告)号:US20100137517A1

    公开(公告)日:2010-06-03

    申请号:US12525143

    申请日:2008-04-04

    IPC分类号: C08F287/00 C08G77/38

    摘要: The present invention relates to the production of amphiphilic copolymer networks, or co-networks, and to methods for preparing amphiphilic co-networks. Furthermore, the present invention relates to products and/or films made from the amphiphilic co-networks produced in accordance with the synthesis methods of the present invention. In one embodiment, the present invention is related to crosslinkable and/or polymerizable compositions that can be utilized to form amphiphilic co-networks, where such compositions are block copolymer compositions that are formed from the combination of at least one hydrophilic segment, at least one hydrophobic segment, and at least one crosslinkable and/or polymerizable segment. In yet another embodiment, the present invention relates to amphiphilic co-networks that are optically clear and highly oxyphilic.

    摘要翻译: 本发明涉及两亲性共聚物网络或共同网络的制备以及用于制备两亲性共网络的方法。 此外,本发明涉及由根据本发明的合成方法制备的两亲性共网络制成的产品和/或膜。 在一个实施方案中,本发明涉及可用于形成两亲性共网络的可交联和/或可聚合组合物,其中这样的组合物是由至少一个亲水链段至少一个 疏水链段和至少一个可交联和/或可聚合链段。 在另一个实施方案中,本发明涉及光学透明且高亲氧性的两亲性共网络。