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    • 3. 发明授权
    • Nanoporous polymeric foam having high cell density without nanofiller
    • 具有高电池密度的纳米聚合物泡沫,无纳米填料
    • US09187611B2
    • 2015-11-17
    • US13578092
    • 2011-02-23
    • Stephane CosteuxLingbo ZhuHyun JeonShana P. BunkerThomas H. Kalantar
    • Stephane CosteuxLingbo ZhuHyun JeonShana P. BunkerThomas H. Kalantar
    • C08J9/12C08J9/00
    • C08J9/122C08J9/0071C08J2201/024C08J2201/032C08J2205/046C08J2333/10
    • A polymeric foam has a thermoplastic polymer matrix defining multiple cells, the foam characterized by: (a) the polymer matrix having greater than 50 weight-percent copolymer containing at least two different monomers at least one of which is a methacrylate monomer, each monomer having a solubility parameter lower than 20 (megaPascals)0.5 and a chemical composition where twice the mass fraction of oxygen plus the mass fraction of nitrogen, fluorine and silicon is greater than 0.2; wherein the monomers comprise at least 90 weight-percent of all monomers in the copolymer; (b) at least one of the following: (i) a nucleation site density of at least 3×1014 effective nucleation sites per cubic centimeter of foamable polymer composition; (ii) an average cell size of 300 nanometer or less; (c) a porosity percentage greater than 30%; (d) an absence of nano-sized nucleating additive; and (e) a thickness of at least one millimeter.
    • 聚合物泡沫具有限定多个细胞的热塑性聚合物基质,泡沫的特征在于:(a)聚合物基质具有大于50重量%的共聚物,其含有至少两个不同的单体,其中至少一个是甲基丙烯酸酯单体,每个单体具有 溶解度参数低于20(兆帕)和化学组成,其中氧质量分数加上氮,氟和硅质量分数的两倍大于0.2; 其中所述单体包含所述共聚物中所有单体的至少90重量% (b)以下至少之一:(i)成核位点密度为每立方厘米可发泡聚合物组合物至少3×1014个有效成核位点; (ii)平均泡孔尺寸为300纳米以下; (c)孔隙率大于30%; (d)不存在纳米尺寸的成核添加剂; 和(e)至少一毫米的厚度。
    • 4. 发明申请
    • NANOPOROUS POLYMERIC FOAM HAVING HIGH CELL DENSITY WITHOUT NANOFILLER
    • 具有无纳米纤维素的高密度聚合物的纳米聚合物泡沫
    • US20120321873A1
    • 2012-12-20
    • US13578092
    • 2011-02-23
    • Stephane CosteuxLingbo ZhuHyun JeonShana P. BunkerThomas H. Kalantar
    • Stephane CosteuxLingbo ZhuHyun JeonShana P. BunkerThomas H. Kalantar
    • C08J9/02B29C44/08B29C47/00
    • C08J9/122C08J9/0071C08J2201/024C08J2201/032C08J2205/046C08J2333/10
    • A polymeric foam has a thermoplastic polymer matrix defining multiple cells, the foam characterized by: (a) the polymer matrix having greater than 50 weight-percent copolymer containing at least two different monomers at least one of which is a methacrylate monomer, each monomer having a solubility parameter lower than 20 (megaPascals)0.5 and a chemical composition where twice the mass fraction of oxygen plus the mass fraction of nitrogen, fluorine and silicon is greater than 0.2; wherein the monomers comprise at least 90 weight-percent of all monomers in the copolymer; (b) at least one of the following: (i) a nucleation site density of at least 3×1014 effective nucleation sites per cubic centimeter of foamable polymer composition; (ii) an average cell size of 300 nanometer or less; (c) a porosity percentage greater than 30%; (d) an absence of nano-sized nucleating additive; and (e) a thickness of at least one millimeter.
    • 聚合物泡沫具有限定多个细胞的热塑性聚合物基质,泡沫的特征在于:(a)聚合物基质具有大于50重量%的共聚物,其含有至少两个不同的单体,其中至少一个是甲基丙烯酸酯单体,每个单体具有 溶解度参数低于20(兆帕)和化学组成,其中氧质量分数加上氮,氟和硅质量分数的两倍大于0.2; 其中所述单体包含所述共聚物中所有单体的至少90重量% (b)以下至少之一:(i)成核位点密度为每立方厘米可发泡聚合物组合物至少3×1014个有效成核位点; (ii)平均泡孔尺寸为300纳米以下; (c)孔隙率大于30%; (d)不存在纳米尺寸的成核添加剂; 和(e)至少一毫米的厚度。
    • 8. 发明申请
    • POLYMERIC NANOFOAM
    • 聚合纳米粉体
    • US20140200283A1
    • 2014-07-17
    • US14238746
    • 2012-09-14
    • Stéphane CosteuxShana P. BunkerHyun K. JeonPrasanna K. Jog
    • Stéphane CosteuxShana P. BunkerHyun K. JeonPrasanna K. Jog
    • C08L33/20C08L33/10
    • C08L33/20B32B5/32C08J9/0061C08J9/122C08J2203/06C08J2333/06C08J2425/12C08J2455/02C08L33/10
    • A polymeric nanofoam has a continuous polymer phase containing at least one (meth)acrylic-free acrylonitrile-containing copolymer and at least one (meth)acrylic polymer where the concentration of (meth)acrylic polymer is in a range of 5-90 weight-percent of the total continuous polymer phase while the amount of methacrylic copolymer is 50 weight-percent or less of the total continuous polymer phase; the polymeric foam having a porosity of at least 50%, an absence of nano-sized nucleating additives and at least one of the following: (a) a number average cell size of 500 nanometers or less; and (b) an effective nucleation site density of at least 1×1014 sites per cubic centimeter of prefoamed material. The total weight of copolymerized acrylonitrile is in a range of 3-28 weight-percent based on total continuous polymer phase weight. At least one (meth)acrylic-free acrylonitrile-containing copolymer has a higher glass transition temperature than all of the (meth)acrylic polymers.
    • 聚合物纳米纤维具有包含至少一种(甲基)丙烯酸 - 丙烯腈共聚物和至少一种(甲基)丙烯酸类聚合物的连续聚合物相,其中(甲基)丙烯酸聚合物的浓度在5-90重量% 的总连续聚合物相的百分比,而甲基丙烯酸共聚物的量为总连续聚合物相的50重量%或更少; 所述聚合物泡沫具有至少50%的孔隙率,不存在纳米尺寸的成核添加剂和以下至少一种:(a)500纳米或更小的数均孔数; 和(b)有效成核位点密度为每立方厘米预发泡材料至少1×1014个位点。 基于总连续聚合物相重量,共聚丙烯腈的总重量在3-28重量%的范围内。 至少一种(甲基)丙烯酸 - 含丙烯腈的共聚物具有比所有(甲基)丙烯酸聚合物更高的玻璃化转变温度。