FLAME-RETARDANT SEMI-AROMATIC POLYAMIDE AND PREPARATION METHOD THEREFOR

    公开(公告)号:EP3957676A1

    公开(公告)日:2022-02-23

    申请号:EP20802455.4

    申请日:2020-04-10

    IPC分类号: C08G69/42

    摘要: The invention discloses a flame-retardant semi-aromatic polyamide derived from the following monomers: a diacid monomer A: where A1 is terephthalic acid or terephthalic acid and other diacid, terephthalic acid accounts for 50 to 100 mol% of A1, and A2 is [(6-oxido-6H-dibenzo-(c,e)(1,2)-oxaphosphorin-6-ketone)-methyl]-butanedioic acid, A1+A2=100 mol%, A1=90 to 99 mol%, A2=1 to 10 mol%; and diamine monomer B: one or more of diamine monomers containing 4 to 36 carbon atoms. In the present invention, by an in situ polymerization, a specific flame-retardant monomer [(6-oxido-6H-dibenzo-(c,e)(1,2)-oxaphosphorin-6-ketone)-methyl]-butanedioic acid is copolymerized in a semi-aromatic polyamide chain segment, excellent mechanical properties and low water absorption can be obtained. At the same time, in a preparation method of the present invention a gradient heating method is used and by the in situ copolymerization, a semi-aromatic polyamide with an intrinsic flame-retardant property is synthesized, without a need to separately synthesize a flame-retardant precursor, which has simple operation steps, and reduces a production cost.

    POLYAMIDE RESIN AND USE THEREOF AND POLYAMIDE COMPOSITION CONSISTING OF SAME
    6.
    发明公开
    POLYAMIDE RESIN AND USE THEREOF AND POLYAMIDE COMPOSITION CONSISTING OF SAME 审中-公开
    POLYAMIDHARZ UND VERWENDUNG DAVON SOWIE POLYAMIDZUSAMMENSETZUNG DARAUS

    公开(公告)号:EP2944665A1

    公开(公告)日:2015-11-18

    申请号:EP14738201.4

    申请日:2014-01-10

    IPC分类号: C08G69/36 C08L77/00

    摘要: The present invention discloses a polyamide resin and its application and polyamide composition thereof. The repeating units of the described polyamide resin comprises the following components: dicarboxylic acid units composed 80-100mol% of polyamide resin; aliphatic diamines units having 2-14 carbon atoms composed 80-100mol% of polyamide resin; lactam or amino acid units having 6-14 carbon atoms composed 0-20mol% of polyamide resin; in the described polyamide resin, the bio-based carbon concentration is more than 45%; the described bio-based carbon mole concentration is calculated according to the formula below: bio-based carbon concentration=(bio-based carbon mole content/total organic carbon mole content)*100%. The described polyamide resin in the present invention has low gas volatile, hence the polyamide composition produced thereof has low gas volatile too, and can be applied to food-contact field. In addition, the surface condition after reflow soldering of the polyamide composition produced is good.

    摘要翻译: 本发明公开了一种聚酰胺树脂及其应用及其聚酰胺组合物。 所述聚酰胺树脂的重复单元包含以下组分:由聚酰胺树脂组成的80-100摩尔%的二羧酸单元; 具有2〜14个碳原子的脂肪族二胺单元构成80〜100摩尔%的聚酰胺树脂; 具有6-14个碳原子的内酰胺或氨基酸单元组成0-20mol%的聚酰胺树脂; 在所述的聚酰胺树脂中,生物基碳浓度大于45%; 所述生物基碳摩尔浓度根据以下公式计算:生物基碳浓度=(生物基碳摩尔含量/总有机碳摩尔含量)* 100%。 本发明所述的聚酰胺树脂挥发性低,因此其制造的聚酰胺组合物的挥发性也低,可应用于食品接触场。 此外,所生产的聚酰胺组合物的回流焊接后的表面状态良好。