Crosslinked polycyclooctene
    53.
    发明授权
    Crosslinked polycyclooctene 有权
    交联多环辛烯

    公开(公告)号:US07906573B2

    公开(公告)日:2011-03-15

    申请号:US12718249

    申请日:2010-03-05

    CPC classification number: C08G18/3893 C08G61/08 C08G2230/00 C08L65/00

    Abstract: Chemically crosslinked polycyclooctene having excellent shape recovery properties is prepared by ring-opening metathesis polymerization of cis-cyclooctene followed by chemical crosslinking. The crosslinked polycyclooctene can be shaped, the shape memorized, a new shape imparted with the original shape being recoverable by suitable temperature adjustment. The dependence of shape memory characteristics on degree of crosslinking was established. In addition to polycyclooctene, blends thereof with other materials such as SBR, EVA, polyurethane rubbers, and inorganic fillers can be utilized to provide chemically crosslinked products having excellent and tailored shape memory properties.

    Abstract translation: 具有优异形状恢复性能的化学交联的聚环辛烯通过顺式 - 环辛烯的开环易位聚合进行化学交联来制备。 交联的多环辛烯可以成形,记忆形状,赋予原始形状的新形状可通过适当的温度调节而恢复。 形状记忆特性对交联度的依赖性已被确立。 除了聚环辛烯之外,可以使用其与其它材料如SBR,EVA,聚氨酯橡胶和无机填料的共混物来提供具有优良和定制形状记忆性质的化学交联产物。

    Shape memory main-chain smectic-C elastomers
    56.
    发明授权
    Shape memory main-chain smectic-C elastomers 失效
    形状记忆主链近晶C弹性体

    公开(公告)号:US07601274B2

    公开(公告)日:2009-10-13

    申请号:US11096021

    申请日:2005-03-31

    Abstract: Shape memory main-chain smectic-C elastomers are described. The elastomers are prepared by hydrosilylation of a reaction mixture including a liquid crystalline diene, a crosslinking agent, and a bis(silyl hydride) compound. The elastomers exhibit shape-memory properties and spontaneously reversible shape changes. They are useful for fabrication of shape memory articles including, for example, implantable medical devices, contact lenses, reversible embossing media, and Fresnel lenses.

    Abstract translation: 描述了形状记忆主链近晶C弹性体。 弹性体通过包括液晶二烯,交联剂和双(甲硅烷基氢化物)化合物的反应混合物的氢化硅烷化来制备。 弹性体表现出形状记忆特性和自发可逆的形状变化。 它们可用于制造形状记忆物品,包括例如可植入医疗装置,隐形眼镜,可逆压花介质和菲涅尔透镜。

    SHAPE MEMORY POLYMERS BASED ON SEMICRYSTALLINE THERMOPLASTIC POLYURETHANES BEARING NANOSTRUCTURED HARD SEGMENTS
    57.
    发明申请
    SHAPE MEMORY POLYMERS BASED ON SEMICRYSTALLINE THERMOPLASTIC POLYURETHANES BEARING NANOSTRUCTURED HARD SEGMENTS 审中-公开
    基于半导体热塑性聚氨酯的形状记忆聚合物承载纳米硬化部分

    公开(公告)号:US20090253842A1

    公开(公告)日:2009-10-08

    申请号:US12403410

    申请日:2009-03-13

    Abstract: Thermoplastic polyurethanes having an alternating sequence of hard and soft segments in which a nanostructured polyhedral oligosilsesquioxane diol is used as a chain extender to form a crystalline hard segment constituting SMPs. The polyurethanes are formed by reacting a polyol, a chain extender dihydroxyl-terminated polyhedral oligosilsesquioxane and a diisocyanate. The polyurethanes have multiple applications including for example, implants for human health care, drug delivery matrices, superabsorbant hydrogels, coatings, adhesives, temperature and moisture sensors, etc.

    Abstract translation: 具有硬链段和软链段的交替序列的热塑性聚氨酯,其中使用纳米结构多面体寡聚倍半硅氧烷二醇作为扩链剂以形成构成SMP的结晶硬链段。 聚氨酯通过使多元醇,扩链剂二羟基封端的多面体寡聚倍半硅氧烷和二异氰酸酯反应而形成。 聚氨酯具有多种应用,包括例如用于人体保健的植入物,药物递送基质,超吸收水凝胶,涂层,粘合剂,温度和湿度传感器等。

    Blends of amorphous and semicrystalline polymers having shape memory properties
    60.
    发明授权
    Blends of amorphous and semicrystalline polymers having shape memory properties 失效
    具有形状记忆特性的无定形和半结晶聚合物的共混物

    公开(公告)号:US07371799B2

    公开(公告)日:2008-05-13

    申请号:US11624952

    申请日:2007-01-19

    Abstract: Blends of amorphous and semicrystalline polymers having shape memory properties were prepared by blending a crystalline polymer such as poly(vinylidene fluoride), polylactide, poly(hydroxxybutyrate), poly(ethylene glycol) polyethylene, polyethylene-co-vinyl acetate, poly(vinyl chloride), poly(vinylidene chloride) and copolymers of poly(vinylidene chloride) and poly(vinyle chloride) and an amorphous polymer such as poly(vinyl acetate), poly methyl acrylate, poly ethyl acrylate, atactic poly methyl methacrylate, isotactic poly methyl methacrylate, syndiotactic poly methyl methacrylate and other poly alkyl methacrylates. The method for preparing the polymeric materials and applications thereof, for example, as smart medical devices, are also disclosed.

    Abstract translation: 通过混合结晶聚合物如聚(偏二氟乙烯),聚丙交酯,聚(羟基丁酸酯),聚(乙二醇)聚乙烯,聚乙烯 - 共 - 乙酸乙烯酯,聚(氯乙烯)等制备具有形状记忆性质的无定形和半结晶聚合物的共混物 ),聚(偏二氯乙烯)和聚(偏二氯乙烯)和聚(氯乙烯)的共聚物和无定形聚合物如聚(乙酸乙烯酯),聚甲基丙烯酸酯,聚丙烯酸乙酯,无规立构聚甲基丙烯酸甲酯,全同立构聚甲基丙烯酸甲酯 间同立构聚甲基丙烯酸甲酯和其他聚甲基丙烯酸烷基酯。 还公开了制备聚合物材料的方法及其应用,例如智能医疗装置。

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