Polyamide composition
    11.
    发明授权

    公开(公告)号:US09856375B2

    公开(公告)日:2018-01-02

    申请号:US15036724

    申请日:2014-11-07

    Abstract: The invention pertains to A polyannide composition [composition (C)] comprising: —from 20 to 95% wt of at least one polyamide [polyamide (A)]; —from 1 to 30% wt of at least one branched polyamide different from polyamide (A), said branched polyamide comprising recurring units derived from polycondensation of a mixture [mixture (B)] comprising: —at least one polyamine monomer comprising at least three amine functional groups selected from the group consisting of secondary amine group of formula —NH— and primary amine group of formula -MH2 [monomer (FN)], and—ε-caprolactam (or derivates thereof); said branched polyamide possessing a concentration of amine end groups (AEG) and a concentration of carboxylic end groups (CEG) such that the difference AEG−CEG is of at least 100 meq/kg [polyamide (B)]; and—from 0.01 to 3.5% wt of at least one thermal stabilizer [stabilizer (S)], —optionally, from 0 to 60% wt of at least one filler [filler (F)]; —optionally, from 0 to 20% wt of at least one impact modifying rubber [rubber (I)]; —optionally, from 0 to 20% wt of other conventional additives, with above % wt being referred to the total weight of composition (C).

    THERMOPLASTIC COPOLYIMIDES
    13.
    发明申请
    THERMOPLASTIC COPOLYIMIDES 审中-公开
    热塑性共聚物

    公开(公告)号:US20150045501A1

    公开(公告)日:2015-02-12

    申请号:US14345070

    申请日:2012-09-18

    Inventor: Stéphane Jeol

    Abstract: The present invention relates to semiaromatic semicrystalline thermoplastic copolyimides obtained by polymerization of at least: (a) an aromatic compound comprising two anhydride functions and/or carboxylic acid and/or ester derivatives thereof; (b) a diamine of formula (I) NH2-R—NH2 in which R is a divalent aliphatic hydrocarbon-based radical optionally comprising heteroatoms, the two amine functions being separated by a number X of carbon atoms, X being between 4 and 12; and (c) a diamine of formula (II) NH2-R′—NH2 in which R′ is a divalent aliphatic hydrocarbon-based radical optionally comprising heteroatoms, the two amine functions being separated by a number Y of carbon atoms, Y being between 10 and 20; it being understood that diamine (b) is different from diamine (c).

    Abstract translation: 本发明涉及通过至少聚合至少:(a)包含两个酸酐官能团的芳族化合物和/或其羧酸和/或酯衍生物而获得的半芳族半结晶热塑性共聚酰亚胺; (b)式(I)NH 2 -R-NH 2的二胺,其中R是任选地包含杂原子的二价脂族烃基自由基,两个胺官能团被X原子分开,X在4和12之间 ; 和(c)式(II)的二胺NH 2 -R'-NH 2,其中R'是任选地包含杂原子的二价脂族烃基自由基,两个胺官能团被Y分开的碳原子,Y在 10和20; 应理解二胺(b)不同于二胺(c)。

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