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31 条记录 (耗时 0.019 秒)

    Hydroxyl-terminated polymers
    14.
    发明授权
    Hydroxyl-terminated polymers 失效
    羟基封端的聚合物

    公开(公告)号：US4562235A

    公开(公告)日：1985-12-31

    申请号：US601439

    申请日：1984-04-18

    申请人： John M. Zimmerman ,  John J. Krajewski ,  Gerry K. Noren

    发明人： John M. Zimmerman ,  John J. Krajewski ,  Gerry K. Noren

    IPC分类号： C08F2/00 ,  C08F2/38 ,  C08F20/00 ,  C08F20/10 ,  C08F20/12 ,  C09D133/04 ,  C09D175/00 ,  C09D201/02 ,  C08F20/18

    CPC分类号： C08F2/38 ,  Y10T428/31699

    摘要： There is disclosed linear polymers and copolymers of polymerized monoethylenically unsaturated monomers having a weight average molecular weight from about 1,500 to about 15,000, with most of the polymer ends being terminated with hydroxyl groups, one at each end of the polymer molecule. These polymers have an average of from about 1.6 to 5 hydroxyl groups per polymer molecule. Thermosetting coating compositions containing these polymers are also disclosed. The monomers which are polymerized may include a small proportion of hydroxy-functional monomers, but desirably consist of monoethylenically unsaturated monomers lacking hydroxyl functionality. The polymers are produced by polymerizing the monoethylenically unsaturated monomers in organic solvent solution medium containing a free radical initiator and a proportion of a chain-terminating agent which is a bis hydroxyorganic xanthogen disulfide in which the organic group is preferably an alkylene group contains from 2-18 carbon atoms to provide the desired molecular weight. The polymers are preferably liquid to slowly flowable at room temperature in the absence of organic solvent.

    摘要翻译： 公开了具有约1,500至约15,000的重均分子量的聚合的单烯属不饱和单体的线性聚合物和共聚物，其中大多数聚合物末端以羟基封端，在聚合物分子的每个末端一个。 这些聚合物每个聚合物分子平均具有约1.6至5个羟基。 还公开了含有这些聚合物的热固性涂料组合物。 聚合的单体可以包括少量的羟基官能单体，但是理想地由缺乏羟基官能团的单烯属不饱和单体组成。 聚合物是通过将单烯属不饱和单体聚合在含有自由基引发剂的有机溶剂溶液介质中，以及作为双羟基有机黄原二硫化物的链终止剂的比例，其中有机基团优选为亚烷基， 18个碳原子以提供所需的分子量。 在不存在有机溶剂的情况下，聚合物优选液体以在室温下缓慢流动。

    NEURO GUIDEWIRE
    15.
    发明申请
    NEURO GUIDEWIRE 审中-公开

    公开(公告)号：US20100228150A1

    公开(公告)日：2010-09-09

    申请号：US12398713

    申请日：2009-03-05

    申请人： John M. Zimmerman ,  Bradley D. Seibert

    发明人： John M. Zimmerman ,  Bradley D. Seibert

    IPC分类号： A61M25/01

    CPC分类号： A61M25/09 ,  A61M2025/09191

    摘要： A guide wire having dual coil on core configuration. The guide wire has a core wire with distal and proximal ends or segments wherein two coils are tandomly disposed on its distal end.The more proximally-disposed of the distal coils is multifilar having from 4 to 15 filars all wound in one direction. The multifilar coil comprises a super elastic material. The more distal of the distally-disposed coils comprises a radiopaque material, the core wire terminating with an atraumatic tip. A guide wire of this invention is particularly well suited to navigation of the neuroanatomy.

    摘要翻译： 一种导线，其芯线配置为双线圈。 导线具有芯线，其具有远端和近端或段，其中两个线圈在其远端上倾斜地设置。 远侧线圈的近端处置越多，具有4个至15个丝状体的多毛形，全部沿一个方向缠绕。 多针线圈包括超弹性材料。 远侧设置的线圈的远端包括不透射线的材料，芯线终止于无创伤的尖端。 本发明的引导线特别适合于神经解剖学的导航。

    Ultraviolet curable optical glass fiber coatings from acrylate terminated, end-branched polyurethane polyurea oligomers
    19.
    发明授权
    Ultraviolet curable optical glass fiber coatings from acrylate terminated, end-branched polyurethane polyurea oligomers 失效
    由丙烯酸酯封端的末端支化聚氨酯聚脲低聚物制成的紫外光固化型光学玻璃纤维涂层

    公开(公告)号：US4690502A

    公开(公告)日：1987-09-01

    申请号：US752583

    申请日：1985-07-08

    申请人： John M. Zimmerman ,  Timothy E. Bishop

    发明人： John M. Zimmerman ,  Timothy E. Bishop

    IPC分类号： C03C25/24 ,  C03C25/10 ,  C08F2/48 ,  C08F2/50 ,  C08F20/00 ,  C08F20/42 ,  C08F290/00 ,  C08F299/06 ,  C08G18/32 ,  C08G18/67 ,  C08G18/81 ,  C09D5/00 ,  C09D175/14 ,  G02B6/44 ,  C08F26/02 ,  C08F126/02 ,  G02B6/22

    CPC分类号： G02B6/443 ,  C03C25/106 ,  C03C25/1065 ,  C08G18/3271 ,  C08G18/672 ,  C08G18/8175 ,  Y10T428/2938

    摘要： Ultraviolet curing oligomers and liquid coating compositions based thereon are disclosed which cure with ultraviolet light in the presence of a photoinitiator. The coating compositions can provide either a single coating for optical glass fiber which resists microbending difficulties down to around -40.degree. C., or a topcoat for overcoating softer buffer coatings which resist microbending down to around -60.degree. C. The coating compositions consist essentially of the linear polyacrylate-terminated polyurethane polyurea oligomer in admixture with an ultraviolet curable liquid acrylate or polyacrylate to provide the liquidity needed for application and to adjust the hardness or softness of the cured coating for the selected single coat or topcoat utility. The linear polyacrylate-terminated polyurethane polyurea oligomer comprises a linear polyurethane terminated with an essentially monohydric adduct of low molecular weight diprimary amine with from about 1 to about 2.5 moles of monoepoxide per mole of diamine and reacted with a monohydric acrylate to leave about 1 hydroxy group per molecule. The several acrylate terminal groups increases the toughness and the cure speed.

    摘要翻译： 公开了基于其的紫外线固化低聚物和液体涂料组合物，其在光引发剂存在下用紫外光固化。 涂料组合物可以提供单一的光学玻璃纤维涂层，其抗微弯曲难度低至约-40℃;或用于外涂柔软的缓冲涂层的顶涂层，其抗微弯曲至约-60℃。涂层组合物基本上 的线性聚丙烯酸酯封端的聚氨酯聚脲低聚物与紫外线可固化液体丙烯酸酯或聚丙烯酸酯混合以提供所需的流动性，并调节所选择的单一涂层或面漆实用程序的固化涂层的硬度或柔软度。 线型聚丙烯酸酯封端的聚氨酯聚脲低聚物包含用基本上一分子加合物的低分子量二元胺与约1至约2.5摩尔单环氧化物/摩尔二胺封端的线性聚氨酯，并与一元羟基丙烯酸酯反应以产生约1个羟基 每分子。 几个丙烯酸酯端基增加韧性和固化速度。

    Radiation-curable copolymers of monoethylenic monomers
    20.
    发明授权
    Radiation-curable copolymers of monoethylenic monomers 失效
    单烯属单体的可辐射固化共聚物

    公开(公告)号：US4537667A

    公开(公告)日：1985-08-27

    申请号：US603836

    申请日：1984-04-25

    申请人： Timothy E. Bishop ,  George Pasternack ,  John M. Zimmerman

    发明人： Timothy E. Bishop ,  George Pasternack ,  John M. Zimmerman

    IPC分类号： C08F8/00

    CPC分类号： C08F8/00

    摘要： Radiation-curable linear addition polymers or copolymers are disclosed having a weight average molecular weight of from about 1,500 to about 15,000 of polymerized monoethylenically unsaturated monomers, which may include up to 25% by weight of an hydroxy-functional monomer, and which carries an hydroxyl group at most of its ends, reacted with a monoethylenically unsaturated monomer carrying a single functional group reactive with the hydroxyl group, so that the polymer carries monoethylenically unsaturated groups bonded to an average of from 1.6 to 5 of the hydroxyl groups per polymer molecule. The preferred radiation-curable polymers are liquid to slowly flowable at room temperature in the absence of organic solvent, and the monoethylenically unsaturated groups are preferably acrylate groups to enable an ultraviolet cure. The terminal hydroxyl groups and the unusually low molecular weight are provided using a bis hydroxyorganic xanthogen disulfide as a chain terminating catalyst when the polymers are formed, and a small proportion of additional hydroxy functionality can be incorporated into the polymers using a hydroxyl functional monomer.

    摘要翻译： 公开了可聚合单烯属不饱和单体的重均分子量为约1,500至约15,000的可辐射固化的线性加成聚合物或共聚物，其可以包含至多25重量％的羟基官能单体，并且其携带羟基 在其末端的大部分基团与具有与羟基反应的单一官能团的单烯属不饱和单体反应，使得聚合物携带与每个聚合物分子平均键合1.6至5个羟基的单烯属不饱和基团。 在不存在有机溶剂的情况下，优选的可辐射固化的聚合物是液体的以在室温下缓慢流动，并且单烯键式不饱和基团优选是丙烯酸酯基团以实现紫外线固化。 当形成聚合物时，使用双羟基有机黄原素二硫化物作为链终止催化剂提供末端羟基和异常低分子量，并且可以使用羟基官能单体将少量的另外的羟基官能度引入聚合物中。