Shape Memory Elastomeric Composites and Method of Manufacturing
    35.
    发明申请
    Shape Memory Elastomeric Composites and Method of Manufacturing 审中-公开
    形状记忆弹性复合材料及其制造方法

    公开(公告)号:US20110021097A1

    公开(公告)日:2011-01-27

    申请号:US12842602

    申请日:2010-07-23

    Abstract: A shape memory composite consisting of an electrospun non-woven fiber mat and an elastomeric resin matrix. The fiber mat is made from a semi-crystalline polymer, poly(ε-caprolactone) (PCL) and serves as the “switching phase” for shape fixing and recovery. The resin matrix, a crosslinked PDMS elastomer, imparts softness as well as entropic elasticity to the material. PCL is first electrospun from a chloroform/DMF solution. The resulting microfiber mat was then immersed in a two-part (base resin and crosslinking agent) mixture of Sylgard 184 with a vacuum applied to infiltrate the fiber mat with the mixture. The infiltrated fiber mat is then removed from the mixture and cured at room temperature for two days.

    Abstract translation: 由电纺无纺纤维毡和弹性树脂基体组成的形状记忆复合材料。 纤维毡由半结晶聚合物,聚(ε-己内酯)(PCL)制成,用作形状固定和回收的“切换阶段”。 树脂基质,交联的PDMS弹性体,赋予材料柔软度以及熵弹性。 PCL首先从氯仿/ DMF溶液中电纺丝。 然后将所得的超细纤维垫浸入Sylgard 184的两部分(基础树脂和交联剂)混合物中,并施加真空以用该混合物渗透纤维垫。 然后将渗透的纤维垫从混合物中取出并在室温下固化两天。

    Shape memory main-chain smectic-C elastomers
    36.
    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:US07799243B2

    公开(公告)日:2010-09-21

    申请号:US12420090

    申请日:2009-04-08

    Abstract: Shape memory main-chain smectic-C elastomers are described, as are methods for their preparation and monomers used in such methods. 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: 描述形状记忆主链近晶C弹性体,以及它们的制备方法和在这些方法中使用的单体。 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。

    CROSSLINKED POLYCYCLOOCTENE
    37.
    发明申请
    CROSSLINKED POLYCYCLOOCTENE 有权
    交联聚碳酸酯

    公开(公告)号:US20100160522A1

    公开(公告)日:2010-06-24

    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
    38.
    发明申请
    SHAPE MEMORY MAIN-CHAIN SMECTIC-C ELASTOMERS 失效
    形状记忆主链SMECTIC-C弹性体

    公开(公告)号:US20090240075A1

    公开(公告)日:2009-09-24

    申请号:US12420090

    申请日:2009-04-08

    Abstract: Shape memory main-chain smectic-C elastomers are described, as are methods for their preparation and monomers used in such methods. 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: 描述形状记忆主链近晶C弹性体,以及它们的制备方法和在这些方法中使用的单体。 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。

    Blends of amorphous and semicrystalline polymers having shape memory properties
    40.
    发明授权
    Blends of amorphous and semicrystalline polymers having shape memory properties 有权
    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:US07208550B2

    公开(公告)日:2007-04-24

    申请号:US10683558

    申请日:2003-10-10

    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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