Fireproof polyester composition
    33.
    发明授权
    Fireproof polyester composition 失效
    耐火涤纶组合物

    公开(公告)号:US4046724A

    公开(公告)日:1977-09-06

    申请号:US533067

    申请日:1974-12-16

    CPC分类号: C08G79/04 C08L67/02

    摘要: A polyester composition having high fireproofness is obtained by blending a copolymerized polyester comprising a polyalkylene terephthalate containing in the main chain thereof binding units of the formula: ##STR1## (WHEREIN, Y denotes -O-, an alkylidene radical having 1 to 6 carbon atoms or a cycloalkylidene radical having 3 to 6 carbon atoms) with a high molecular weight organic phosphorus compound of the formula: ##STR2## (WHEREIN, R.sub.1 denotes a monovalent hydrocarbon radical of 1 to 18 carbon atoms having or not having one or more substituents, R.sub.2 denotes a divalent hydrocarbon radical of 2 to 20 carbon atoms having or not having one or more substituents, x and z each denote 0 or 1 and n denotes an integer having the value of not less than 3) in an amount corresponding to 0.05 to 1.0% by weight of phosphorus atoms.

    摘要翻译: 通过将包含主链的聚对苯二甲酸亚烷基对苯二甲酸酯的共聚聚酯与下式结合单元(其中,Y表示-O-,具有1至6个碳原子的亚烷基)混合,得到具有高耐火性的聚酯组合物 或具有3至6个碳原子的环烷叉基)与具有下式的高分子量有机磷化合物反应:(其中R 1表示具有或不具有一个或多个取代基的1至18个碳原子的一价烃基, R2表示具有或不具有一个或多个取代基的2至20个碳原子的二价烃基,x和z各自表示0或1,n表示不小于3的整数),其量相当于0.05至 1.0重量%的磷原子。