Silicon nanoparticles
    1.
    发明授权
    Silicon nanoparticles 失效
    硅纳米粒子

    公开(公告)号:US5695617A

    公开(公告)日:1997-12-09

    申请号:US561771

    申请日:1995-11-22

    CPC分类号: H01L33/346

    摘要: A web-like nanoparticle silicon is produced by laser vaporization of silicon metal in an oxygen-free atmosphere in a diffusion cloud chamber where it aggregates into novel web-like microstructures. The aggregates are porous, and bright yellow to orange photoluminescence from the web-like nanoparticle silicon is observed upon irradiation with ultraviolet light.

    摘要翻译: 通过在扩散云室中的无氧气氛中通过硅金属的激光蒸发来生产网状纳米颗粒硅,其中它聚集成新的网状微结构。 聚集体是多孔的,并且在用紫外线照射时观察到来自网状纳米颗粒硅的明亮的黄色至橙色的光致发光。

    Silica nanoparticles
    4.
    发明授权
    Silica nanoparticles 失效
    二氧化硅纳米粒子

    公开(公告)号:US5580655A

    公开(公告)日:1996-12-03

    申请号:US398268

    申请日:1995-03-03

    IPC分类号: C01B33/12 B32B5/16

    CPC分类号: C01B33/12 Y10T428/2982

    摘要: A web-like nanoparticle silica is produced by laser vaporization of silicon metal in a helium/oxygen atmosphere in a diffusion cloud chamber where it aggregates into novel web-like microstructures. The aggregates are porous and have a surface area greater than 300 m.sup.2 /g. Bright blue photoluminescence from the web-like nanoparticle silica is observed upon irradiation with ultraviolet light.

    摘要翻译: 通过在扩散云室中的氦/氧气氛中的硅金属的激光蒸发来生产网状纳米颗粒二氧化硅,其中它聚集成新的网状微结构。 聚集体是多孔的并且具有大于300m 2 / g的表面积。 在紫外线照射下观察到来自网状纳米颗粒二氧化硅的明亮蓝色光致发光。

    POLYOLS FROM PROTEIN BIOMASS
    5.
    发明申请
    POLYOLS FROM PROTEIN BIOMASS 审中-公开
    蛋白质生物质的多糖

    公开(公告)号:US20150291741A1

    公开(公告)日:2015-10-15

    申请号:US14567100

    申请日:2014-12-11

    摘要: A process of producing multi-hydroxy polyols, the process comprising providing a biomass material and transamidating the biomass material with an amine selected from the group consisting essentially of a diamine and an alkanolamine, to provide low molecular weight derived amino-acids or derived oligomers of proteins. Thereafter, reacting the derived amino-acids or derived oligomers with a carbonate to provide hydroxyl terminated urethane oligomers.

    摘要翻译: 一种生产多羟基多元醇的方法,该方法包括提供生物质材料并使选自基本上由二胺和链烷醇胺组成的组中的胺转酰胺化生物质材料,以提供低分子量衍生的氨基酸或衍生的低聚物 蛋白质。 此后,使衍生的氨基酸或衍生的低聚物与碳酸酯反应,得到羟基封端的氨基甲酸酯低聚物。

    Method of making silicone-organic block copolymers
    8.
    发明授权
    Method of making silicone-organic block copolymers 失效
    硅酮有机嵌段共聚物的制备方法

    公开(公告)号:US5789516A

    公开(公告)日:1998-08-04

    申请号:US826716

    申请日:1997-04-07

    CPC分类号: C08G77/442 C08F4/40

    摘要: A method of manufacturing block copolymers containing a polyorganosiloxane segment, by dual polymerization involving (i) polycondensation of a silicone block followed by (ii) the free radical polymerization of a monomer that can be polymerized by free radical polymerization, such as a vinyl containing organic monomer. Initiation of free radical polymerization in step (ii) is carried out with a carbonyl functional group attached to the silicone polymer block. The carbonyl functional silicone polymer, preferably an aldehyde functional silicone polymer, is included as one component of a copper-based Redox initiating system. The method ensures no free homopolymerization, complete reactivity, and various polymer architectures are possible, including for example, polymeric structures such as AB, ABA, (AB).sub.n, brush, and radiant types. The method is fast, effective, convenient, and easier to control than typical ionic polymerization techniques. The silicone-organic block copolymers obtained by the process have utility as polymeric surfactants or as solubility modifiers.

    摘要翻译: 通过双重聚合制造含有聚有机硅氧烷链段的嵌段共聚物的方法,包括(i)硅氧烷嵌段的缩聚,随后(ii)可通过自由基聚合反应的单体的自由基聚合,例如含乙烯基的有机物 单体。 在步骤(ii)中开始自由基聚合是用与硅氧烷聚合物嵌段连接的羰基官能团进行的。 羰基官能硅氧烷聚合物,优选醛官能的硅氧烷聚合物,作为铜基氧化还原引发体系的一个组分被包括在内。 该方法确保没有游离的均聚,完全的反应性,并且各种聚合物结构是可能的,包括例如聚合物结构如AB,ABA,(AB)n,刷和辐射型。 该方法比典型的离子聚合技术快速,有效,方便,易于控制。 通过该方法获得的硅氧烷 - 有机嵌段共聚物可用作聚合物表面活性剂或溶解度调节剂。

    Method for preparing tubing and hollow fibers from non-crosslinked
polyvinyl alcohol hydrogels
    10.
    发明授权
    Method for preparing tubing and hollow fibers from non-crosslinked polyvinyl alcohol hydrogels 失效
    从非交联聚乙烯醇水凝胶制备管材和中空纤维的方法

    公开(公告)号:US5225120A

    公开(公告)日:1993-07-06

    申请号:US851599

    申请日:1992-03-16

    摘要: This invention relates to hollow elongate articles such as tubing and fibers formed from non-crosslinked polyvinyl alcohol. The articles are prepared by extruding a solution of polyvinyl alcohol in the shape of the desired article into a coagulating bath concurrently with a stream of a non-solvent for the polymer. The stream occupies the area corresponding to the interior cavity of the article and prevents collapse of the cavity until the article has solidified in the coagulation bath.

    摘要翻译: 本发明涉及中空细长制品,例如由非交联聚乙烯醇形成的管材和纤维。 通过将所需制品形状的聚乙烯醇溶液与用于聚合物的非溶剂流同时挤出到凝固浴中来制备制品。 流体占据与制品的内部空腔相对应的区域,并防止腔体塌陷,直到制品在凝固浴中凝固。