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    • 99. 发明授权
    • Fluororubber composition
    • 氟橡胶组成
    • US09505905B2
    • 2016-11-29
    • US14420595
    • 2013-07-19
    • NOK CORPORATION
    • Kenichi Yoshimura
    • C08K3/34C08K7/10C09K3/10
    • C08K3/34C08K7/04C08K7/10C08K2201/003C08K2201/004C08K2201/016C09K3/1009C08L27/16
    • A fluororubber composition comprising 1 to 100 parts by weight of a needle-like filler or fibrous filler having an average particle diameter of 5 μm or less, an average particle length of 40 to 60 μm, and an aspect ratio of 10 to 12, based on 100 parts by weight of fluororubber. A fluororubber vulcanization-molded product obtained from the fluororubber composition has resistance against deformation due to the shape effect of the filler, and thereby can suppress the deformation of the oil seal sliding surface towards the sliding direction. More specifically, the fluororubber vulcanization-molded product can achieve less friction, while maintaining sealing properties by increasing the amount of oil pumping, from the initial use of an oil seal to after the abrasion of the oil seal.
    • 一种氟橡胶组合物,其包含1至100重量份的平均粒径为5μm或更小,平均颗粒长度为40至60μm,纵横比为10至12的针状填料或纤维填料,基于 在100重量份的氟橡胶上。 由氟橡胶组合物获得的氟橡胶硫化成型体由于填料的形状效果而具有抗变形性,能够抑制油封滑动面向滑动方向的变形。 更具体地说,氟橡胶硫化成型产品可以实现较少的摩擦,同时通过增加从最初使用油封到油封的磨损之后的抽油量来保持密封性能。
    • 100. 发明申请
    • MICROPOROUS POLYOLEFIN-BASED AEROGELS
    • 基于多晶聚合物的空气微球
    • US20160272777A1
    • 2016-09-22
    • US14549946
    • 2014-11-21
    • Aspen Aerogels, Inc.
    • Je Kyun LeeGeorge L Gould
    • C08J9/28B65D75/00C08J9/00B65D65/38C08G61/06C08K7/10
    • C08J9/28C08F34/00C08G61/08C08G2261/3325C08G2261/418C08J9/286C08J2201/0502C08J2203/08C08J2205/024C08J2205/026C08J2365/00
    • Microporous polyolefin and microporous polydicyclopentadiene (polyDCPD) based aerogels and methods for preparing and using the same are provided. The aerogels are produced by forming a polymer gel structure within a solvent from a olefin or dicyclopentadiene monomer via Ring Opening Metathesis Polymerization (ROMP) reactions, followed by supercritical drying to remove the solvent from the aerogel. Other aerogels are prepared by sequentially (1) mixing at least one dicyclopentadiene monomer, at least one solvent at least one catalyst and at least one inorganic and/or organic reinforcing material, (2) gelling the mixture, (3) aging, and (4) supercritical drying. Aerogels provided herein are inexpensive to prepare, possess desirable thermal, mechanical, acoustic, chemical, and physical properties and are hydrophobic. The aerogels provided herein are suitable for use in various applications, including but not limited to thermal and acoustic insulation, radiation shielding, and vibrational damping applications.
    • 提供微孔聚烯烃和微孔聚二环戊二烯(polyDCPD)为基础的气凝胶及其制备和使用方法。 通过开环复分解聚合(ROMP)反应在烯烃或二环戊二烯单体的溶剂中形成聚合物凝胶结构,然后通过超临界干燥从气凝胶中除去溶剂来生产气凝胶。 其它气凝胶通过顺序地(1)混合至少一种二环戊二烯单体,至少一种溶剂至少一种催化剂和至少一种无机和/或有机增强材料,(2)胶凝该混合物,(3)老化和( 4)超临界干燥。 本文提供的气凝胶制备成本低廉,具有期望的热,机械,声学,化学和物理性质并且是疏水性的。 本文提供的气凝胶适用于各种应用,包括但不限于热和隔音,辐射屏蔽和振动阻尼应用。