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    High strength air-dried aerogels
    131.
    发明授权
    High strength air-dried aerogels 有权
    高强度风干气凝胶

    公开(公告)号：US08304465B2

    公开(公告)日：2012-11-06

    申请号：US11335297

    申请日：2006-01-18

    Applicant: Paul R. Coronado ,  Joe H. Satcher, Jr.

    Inventor： Paul R. Coronado ,  Joe H. Satcher, Jr.

    IPC: C08J9/28

    CPC classification number: C08J9/28 ,  C08J2201/0504 ,  C08J2205/026 ,  C08J2361/06 ,  Y02P20/544

    Abstract: A method for the preparation of high strength air-dried organic aerogels. The method involves the sol-gel polymerization of organic gel precursors, such as resorcinol with formaldehyde (RF) in aqueous solvents with R/C ratios greater than about 1000 and R/F ratios less than about 1:2.1. Using a procedure analogous to the preparation of resorcinol-formaldehyde (RF) aerogels, this approach generates wet gels that can be air dried at ambient temperatures and pressures. The method significantly reduces the time and/or energy required to produce a dried aerogel compared to conventional methods using either supercritical solvent extraction. The air dried gel exhibits typically less than 5% shrinkage.

    Abstract translation: 一种制备高强度空气干燥有机气凝胶的方法。 该方法包括在R / C比大于约1000且R / F比小于约1：2.1的水性溶剂中有机凝胶前体如间苯二酚与甲醛（RF）的溶胶 - 凝胶聚合。 使用类似于间苯二酚 - 甲醛（RF）气凝胶的制备方法，该方法产生可在环境温度和压力下风干的湿凝胶。 与使用超临界溶剂萃取的常规方法相比，该方法显着降低了产生干燥气凝胶所需的时间和/或能量。 空气干燥凝胶的收缩率通常小于5％。

    Silicone Rubber Sponge-Forming Emulsion Composition And Method For Manufacturing Silicone Rubber Sponge
    132.
    发明申请
    Silicone Rubber Sponge-Forming Emulsion Composition And Method For Manufacturing Silicone Rubber Sponge 审中-公开
    硅橡胶海绵成型乳液组合物及制造硅橡胶海绵的方法

    公开(公告)号：US20110319510A1

    公开(公告)日：2011-12-29

    申请号：US13141789

    申请日：2009-12-24

    Applicant: Kota Tsuchiyama ,  Shinya Shirasaki ,  Mitsuo Hamada

    Inventor： Kota Tsuchiyama ,  Shinya Shirasaki ,  Mitsuo Hamada

    IPC: C08L47/00 ,  C08J9/00 ,  C08K13/02

    CPC classification number: C08G77/04 ,  C08G77/12 ,  C08G77/20 ,  C08J9/0023 ,  C08J9/0066 ,  C08J9/28 ,  C08J2201/0504 ,  C08J2383/04 ,  C08K3/36 ,  C08K5/10 ,  C08L83/00 ,  C08L83/04

    Abstract: A silicone rubber sponge-forming emulsion composition is provided that, even when the quantity of reinforcing silica filler is increased, does not exhibit a decline in emulsion stability, avoids defects in cell morphology of the sponge, and avoids a substantial increase in hardness of the sponge. A method of producing a silicone rubber sponge from this composition is also provided. The A silicone rubber sponge-forming emulsion composition comprises (A) 100 weight parts of a liquid diorganopolysiloxane that has at least two silicon-bonded alkenyl groups in each molecule, (B) 1 to 50 weight parts of a reinforcing silica filler comprising (b1) a fumed silica and (b2) a precipitated silica in a (b1)/(b2) weight ratio of 0.01/1 to 30/1, (C) 50 to 250 weight parts of water that contains (c) a smectite clay, (D) 0.1 to 7 weight parts of a sorbitan fatty acid ester, (E) 0 to 10 weight parts of an isononanoic acid ester, (F) 0 to 10 weight parts of a Guerbet alcohol, and (G) a curing agent in a quantity sufficient to crosslink and cure component (A).

    Abstract translation: 提供了一种硅橡胶海绵形成用乳液组合物，即使增加二氧化硅填料的量增加，也不会使乳液稳定性下降，避免海绵细胞形态的缺陷，避免了硬度的显着增加 海绵。 还提供了从该组合物制备硅橡胶海绵的方法。 A型硅橡胶海绵形成用乳液组合物包含（A）100重量份在每个分子中具有至少两个硅键合的烯基的液体二有机聚硅氧烷，（B）1至50重量份的增强二氧化硅填料，其包含（b1 ）煅烧二氧化硅和（b2）（b1）/（b2）重量比为0.01 / 1〜30/1的沉淀二氧化硅，（C）50〜250重量份含有（c）蒙脱石粘土的水， （D）0.1〜7重量份脱水山梨糖醇脂肪酸酯，（E）0〜10重量份的异壬酸酯，（F）0〜10重量份的格伯特醇，（G） 足以使组分（A）交联和固化的量。

    Process to prepare low density porous crosslinked polymeric materials
    135.
    发明授权
    Process to prepare low density porous crosslinked polymeric materials 失效
    制备低密度多孔交联聚合物材料的方法

    公开(公告)号：US6057376A

    公开(公告)日：2000-05-02

    申请号：US875185

    申请日：1997-07-21

    Applicant: Ronald Marshall Bass ,  Thomas Fairchild Brownscombe

    Inventor： Ronald Marshall Bass ,  Thomas Fairchild Brownscombe

    IPC: C08F2/32 ,  C08J9/28

    CPC classification number: C08F2/32 ,  C08J9/28 ,  C08J2201/028 ,  C08J2201/0504

    Abstract: Stable high internal phase water-in-oil emulsions containing polymerizable vinyl monomers, crosslinking monomers and initiators are obtained, useful in producing low density porous crosslinked polymeric materials by using a surfactant system containing (a) an anionic surfactant, the anionic surfactant having an oil soluble tail and an anionic functional group and (b) one or more quatemary salts having one or more hydrocarbon groups having greater than or equal to 8 carbon atoms. A water-in-oil emulsion can be formed with lower surfactant concentration than sorbitan fatty acid ester alone and improved surfactant performance at elevated temperatures is obtained.

    Abstract translation: PCT No.PCT / US97 / 09011 Sec。 371日期1997年7月21日 102（e）日期1997年7月21日PCT提交1997年5月27日PCT公布。 公开号WO97 / 45479 日期1997年12月4日获得含有可聚合乙烯基单体，交联单体和引发剂的稳定的高内相油包水乳液，其可用于通过使用包含（a）阴离子表面活性剂的表面活性剂体系生产低密度多孔交联聚合物材料， 具有油溶性尾巴和阴离子官能团的阴离子表面活性剂和（b）一种或多种具有一个或多个具有大于或等于8个碳原子的烃基的季铵盐。 可以单独形成具有比山梨糖醇酐脂肪酸酯低的表面活性剂浓度的油包水乳液，并且获得在升高的温度下提高的表面活性剂性能。

    Manufacture of poromeric materials
    138.
    发明授权
    Manufacture of poromeric materials 失效
    多孔材料的制造

    公开(公告)号：US3876446A

    公开(公告)日：1975-04-08

    申请号：US32521473

    申请日：1973-01-19

    Applicant: BASF AG

    Inventor： BLECKMANN GERHARD ,  SANNER AXEL ,  SCHLEMMER LOTHAR ,  WIGGER AUGUST

    IPC: C08J9/00 ,  B29C67/20 ,  C08F2/46 ,  C08F283/01 ,  C08F291/18 ,  C08J9/28 ,  B44D1/50 ,  C08F3/00

    CPC classification number: C08J9/283 ,  B29C67/202 ,  C08F2/46 ,  C08F283/01 ,  C08F291/18 ,  C08J2201/0504

    Abstract: Poromeric web materials are continuously manufactured by applying to a thin layer of ice crystals a textile fibrous structure and an aqueous solution or dispersion of A. polyethylenically unsaturated monomers having at least two polymerizable double bonds or mixtures of at least 0.1 percent w/w of such polyethylenically unsaturated monomers and monoethylenically unsaturated copolymerizable monomers and optionally high molecular weight polymers, or B. monoethylenically unsaturated monomers and high polymers having molecular weights of more than 10,000, Cooling the whole to such an extent that at least 50 percent of the water Crystallizes, irradiating the solidified structure with electromagnetic radiation having a wavelength of less than 0.70 .mu.m to cause polymerization of the monomers, causing the structure to thaw, removing the material from the support and optionally washing the removed material, separating it from the water and finally drying it.

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