CLOSED CELL ALKENYL AROMATIC FOAM
    44.
    发明申请
    CLOSED CELL ALKENYL AROMATIC FOAM 审中-公开
    封闭细胞碱性芳香泡沫

    公开(公告)号:WO0034365A3

    公开(公告)日:2000-09-14

    申请号:PCT/US9927178

    申请日:1999-11-16

    Abstract: This invention pertains to a composition and a process for preparing a closed cell alkenyl aromatic polymer foam having enlarged cell size, comprising one or more alkenyl aromatic polymers, one or more substantially random interpolymers, one or more blowing agents having zero ozone depletion potential and optionally one or more co-blowing agents, and optionally, one or more nucleating agents and optionally, one or more other additives. This combination allows the manufacture of closed cell, low density alkenyl aromatic polymer foams of enlarged cell size, when blowing agents of relatively high nucleation potential are employed. When such blowing agents are used with alkenyl aromatic polymers in the absence of the substantially random interpolymers, small cell foams result.

    Abstract translation: 本发明涉及一种组合物和制备具有增大的细胞尺寸的闭孔烯基芳族聚合物泡沫体的组合物和方法,其包含一种或多种烯基芳族聚合物,一种或多种基本上无规共聚体,一种或多种具有零臭氧消耗潜能的发泡剂和任选的 一种或多种共发泡剂,以及任选的一种或多种成核剂和任选的一种或多种其它添加剂。 当采用具有较高成核能力的发泡剂时,这种组合允许制造具有增大的泡孔尺寸的闭孔,低密度链烯基芳族聚合物泡沫。 当这种发泡剂在不存在基本无规互聚物时与链烯基芳族聚合物一起使用时,会产生小泡沫体。

    ISOCYANATE, DIISOCYANATE AND (METH) ACRYLATE COMPOUNDS FOR MINIMIZING SCORCH AND DIISOCYANATE COMPOUNDS FOR PROMOTING CURE IN CROSSLINKABLE COMPOSITIONS
    49.
    发明申请
    ISOCYANATE, DIISOCYANATE AND (METH) ACRYLATE COMPOUNDS FOR MINIMIZING SCORCH AND DIISOCYANATE COMPOUNDS FOR PROMOTING CURE IN CROSSLINKABLE COMPOSITIONS 审中-公开
    异氰酸酯,二异氰酸酯和(甲基)丙烯酸酯化合物,用于最小化分解和二异氰酸酯化合物,用于促进可交联组合物中的固化

    公开(公告)号:WO2008112690A3

    公开(公告)日:2008-11-13

    申请号:PCT/US2008056517

    申请日:2008-03-11

    CPC classification number: C08K5/101 C08F255/02 C08K5/29 C08F220/28

    Abstract: Thermally activated, free-radical initiator-containing polymer compositions comprise a (i) free radical initiator, (ii) free radical crosslinkable polymer, (iii) scorch inhibiting amount and/or a cure-boosting amount of at least one of isocyanate, diisocyanate, e.g., MDI, or hydroxyalkyl (meth)acrylate compound, e.g., hydroxyethyl (meth)acrylate, and, optionally, (iv) other scorch retardants and/or cure boosters, e.g., a TEMPO compound, a hindered phenol, alpha-methyl styrene dimer, etc.. The free radical initiator can be any thermally activated compound that is relatively unstable and easily breaks into at least two radicals, e.g., a peroxide or azo initiator. The crosslinkable polymer is a thermoplastic and/or elastomeric polymer that can be crosslinked (cured) through the action of a crosslinking agent, e.g., LDPE. The isocyanate, diisocyanate and (meth)acrylate scorch inhibitors and/or cure boosters can be used alone, or in combination with one another, or, optionally, in combination with a TEMPO compound, e.g., 4-hydroxy-TEMPO.

    Abstract translation: 热活化的含自由基引发剂的聚合物组合物包含(i)自由基引发剂,(ii)自由基交联聚合物,(iii)焦化抑制量和/或固化促进量的至少一种异氰酸酯,二异氰酸酯 ,例如MDI,或(甲基)丙烯酸羟烷基酯化合物,例如(甲基)丙烯酸羟乙酯,和任选地,(iv)其它焦烧阻滞剂和/或固化增效剂,例如TEMPO化合物,受阻酚,α-甲基 苯乙烯二聚体等。自由基引发剂可以是任何相对不稳定的热活化化合物,并且易于分解成至少两个基团,例如过氧化物或偶氮引发剂。 可交联聚合物是可以通过交联剂例如LDPE的作用进行交联(固化)的热塑性和/或弹性聚合物。 异氰酸酯,二异氰酸酯和(甲基)丙烯酸酯焦化抑制剂和/或固化促进剂可以单独使用或彼此组合使用,或任选与TEMPO化合物如4-羟基-TEMPO组合使用。

    ISOCYANATE, DIISOCYANATE AND (METH) ACRYLATE COMPOUNDS FOR MINIMIZING SCORCH AND DIISOCYANATE COMPOUNDS FOR PROMOTING CURE IN CROSSLINKABLE COMPOSITIONS
    50.
    发明申请
    ISOCYANATE, DIISOCYANATE AND (METH) ACRYLATE COMPOUNDS FOR MINIMIZING SCORCH AND DIISOCYANATE COMPOUNDS FOR PROMOTING CURE IN CROSSLINKABLE COMPOSITIONS 审中-公开
    异氰酸酯,二异氰酸酯和(甲基)丙烯酸酯化合物用于促进可交联组合物中促进固化的最小化助催化剂和二异氰酸酯化合物

    公开(公告)号:WO2008112690A2

    公开(公告)日:2008-09-18

    申请号:PCT/US2008/056517

    申请日:2008-03-11

    CPC classification number: C08K5/101 C08F255/02 C08K5/29 C08F220/28

    Abstract: Thermally activated, free-radical initiator-containing polymer compositions comprise a (i) free radical initiator, (ii) free radical crosslinkable polymer, (iii) scorch inhibiting amount and/or a cure-boosting amount of at least one of isocyanate, diisocyanate, e.g., MDI, or hydroxyalkyl (meth)acrylate compound, e.g., hydroxyethyl (meth)acrylate, and, optionally, (iv) other scorch retardants and/or cure boosters, e.g., a TEMPO compound, a hindered phenol, alpha-methyl styrene dimer, etc.. The free radical initiator can be any thermally activated compound that is relatively unstable and easily breaks into at least two radicals, e.g., a peroxide or azo initiator. The crosslinkable polymer is a thermoplastic and/or elastomeric polymer that can be crosslinked (cured) through the action of a crosslinking agent, e.g., LDPE. The isocyanate, diisocyanate and (meth)acrylate scorch inhibitors and/or cure boosters can be used alone, or in combination with one another, or, optionally, in combination with a TEMPO compound, e.g., 4-hydroxy-TEMPO.

    Abstract translation: (i)自由基引发剂,(ii)自由基可交联聚合物,(iii)防焦烧量和/或固化促进量 的异氰酸酯,二异氰酸酯例如MDI或(甲基)丙烯酸羟烷基酯化合物,例如(甲基)丙烯酸羟乙酯和任选地(iv)其他防焦剂和/或固化促进剂,例如TEMPO化合物 ,受阻酚,α-甲基苯乙烯二聚体等。自由基引发剂可以是相对不稳定并且易于分裂成至少两个基团的任何热活化化合物,例如过氧化物或偶氮引发剂。 可交联聚合物是可以通过交联剂例如LDPE的作用交联(固化)的热塑性和/或弹性体聚合物。 异氰酸酯,二异氰酸酯和(甲基)丙烯酸酯焦化抑制剂和/或固化促进剂可以单独使用或彼此组合使用,或者任选与TEMPO化合物例如4-羟基-TEMPO组合使用。

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