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    • 3. 发明授权
    • Macrocellular acoustic foam containing particulate additive
    • 含有微粒添加剂的蜂窝声发泡体
    • US07226955B2
    • 2007-06-05
    • US10499802
    • 2003-01-15
    • Suresh SubramonianChung P. Park
    • Suresh SubramonianChung P. Park
    • C08J9/00
    • C08J9/0066C08J9/0061C08J2323/00C08J2351/06
    • A cellular thermoplastic polyolefin foam comprising at least one particulate additive in admixture with a polymer matrix is disclosed, along with a process and foamable gel for manufacturing the same, wherein the polyolefin matrix comprises at least one polymer resin graft-modified with at least one polar group selected from the group consisting of acid, acid ester, and acid anhydride, and salts thereof. The invention facilitates the manufacture of macrocellular foams useful for acoustic absorption having increased amounts of particulate additives that provide certain desired properties difficult to achieve without the particulate additives, such as improved flame retardancy.
    • 公开了一种包含与聚合物基质混合的至少一种颗粒添加剂的多孔热塑性聚烯烃泡沫,以及用于制造聚合物基质的方法和可发泡凝胶,其中聚烯烃基质包含至少一种用至少一种极性 选自酸,酸酯和酸酐的基团及其盐。 本发明有助于制造可用于声吸收的具有增加量的颗粒添加剂的大量泡沫体,这些颗粒添加剂提供难以在没有颗粒添加剂的情况下实现某些所需性质,例如改进的阻燃性。
    • 4. 发明授权
    • Preparation of a macrocellular acoustic foam
    • 制备大量的细胞声泡沫
    • US06720363B2
    • 2004-04-13
    • US09782499
    • 2001-02-13
    • Suresh SubramonianSandrine BurgunChung P. Park
    • Suresh SubramonianSandrine BurgunChung P. Park
    • C08J900
    • C08J9/0019C08J9/0061C08J2201/03C08J2323/02
    • A process for making a macrocellular acoustic foam is disclosed in which a foamable gel made of a blowing agent and a polymeric resin composition is subjected to an extrusion process at a die pressure greater than the prefoaming critical die pressure but less than or equal to four times that of said prefoaming critical die pressure and macrocellular foams obtainable by that process are also disclosed which are made of: A) one or more homopolymers of ethylene, one or more C3-C20 &agr;-olefin polymers, or a combination thereof; B) one or more halogenated flame retardants; C) optionally, one or more polymers other than that of Component A; and D) optionally, one or more flame retardant synergists.
    • 公开了一种制造宏蜂窝泡沫的方法,其中由发泡剂和聚合物树脂组合物制成的可发泡凝胶在大于预发泡临界压模的模压下进行挤出加工,但小于或等于四倍 还公开了通过该方法可获得的所述预发泡临界模压和宏蜂窝泡沫的那些,其由以下制成:A)一种或多种乙烯均聚物,一种或多种C 3 -C 20α-烯烃聚合物或其组合; B)一种 或更多的卤化阻燃剂; C)任选的一种或多种不同于组分A的聚合物; 和D)任选的一种或多种阻燃增效剂。