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    • 8. 发明授权
    • Microporous polyolefin-based aerogels
    • 微孔聚烯烃基气凝胶
    • US09469739B2
    • 2016-10-18
    • US14549946
    • 2014-11-21
    • Aspen Aerogels, Inc.
    • Je Kyun LeeGeorge L Gould
    • C08J9/28C08J9/00C08F34/00C08G61/08
    • 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。
    • 10. 发明授权
    • Benzimidazole based aerogel materials
    • 苯并咪唑基气凝胶材料
    • US09434831B2
    • 2016-09-06
    • US14450942
    • 2014-08-04
    • Aspen Aerogels, Inc.
    • Wendell E RhineDavid Mihalcik
    • C08J9/20C08J9/28
    • C08J9/28C08J9/0066C08J9/0085C08J9/286C08J2201/0502C08J2205/024C08J2205/026C08J2205/042C08J2205/05C08J2205/06C08J2379/04D06M15/3562D06M2400/02
    • The present invention provides aerogel materials based on imidazoles and polyimidazoles. The polyimidazole based aerogel materials can be thermally stable up to 500° C. or more, and can be carbonized to produce a carbon aerogel having a char yield of 60% or more, specifically 70% or more. The present invention also provides methods of producing polyimidazole based aerogel materials by reacting at least one monomer in a suitable solvent to form a polybenzimidazole gel precursor solution, casting the polybenzimidazole gel precursor solution into a fiber reinforcement phase, allowing the at least one gel precursor in the precursor solution to transition into a gel material, and drying the gel materials to remove at least a portion of the solvent, to obtain an polybenzimidazole-based aerogel material.
    • 本发明提供了基于咪唑和聚咪唑的气凝胶材料。 基于聚咪唑的气凝胶材料可以在高达500℃或更高温度下是热稳定的,并且可以被碳化以产生炭黑产率为60%以上,特别是70%以上的碳气凝胶。 本发明还提供了通过使至少一种单体在合适的溶剂中反应以形成聚苯并咪唑凝胶前体溶液来生产聚咪唑基气凝胶材料的方法,将聚苯并咪唑凝胶前体溶液浇铸到纤维增强相中,使至少一种凝胶前体 转变成凝胶材料的前体溶液,并干燥凝胶材料以除去至少一部分溶剂,得到基于聚苯并咪唑的气凝胶材料。