Process for preparing flame-retardant phosphorus-containing unsaturated
polyester
    1.
    发明授权
    Process for preparing flame-retardant phosphorus-containing unsaturated polyester 失效
    阻燃含磷不饱和聚酯的制备方法

    公开(公告)号:US5571888A

    公开(公告)日:1996-11-05

    申请号:US490427

    申请日:1995-06-14

    CPC classification number: C08G63/6928

    Abstract: A process for preparing a flame-retardant phosphorus-containing unsaturated polyester resin blend, comprising the following steps:(a) reacting(1) a phosphorus-containing monomer having the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are respectively H, C.sub.1 -C.sub.4 alkyl, phenyl, alkaryl or aralkyl, with(2) a saturated dicarboxylic acid, or a saturated dicarboxylic acid anhydride,(3) a double bond-containing unsaturated dicarboxylic acid or a double bond-containing unsaturated dicarboxylic acid anhydride, and(4) a diolin the presence of a metal catalyst combined with an acid to form an unsaturated polyester oligomer having the formula: ##STR2## wherein R.sub.5 and R.sub.6 are respectively C.sub.1 -C.sub.4 alkylene, alkarylene, phenylene or aralkylene,R.sub.4 is a vinyl-containing group,x is an integer of 1-10,y is an integer of 1-10,z is an integer of 1-10, and(b) blending said unsaturated polyester oligomer with a vinyl-containing monomer.

    Abstract translation: 一种制备阻燃性含磷不饱和聚酯树脂共混物的方法,包括以下步骤:(a)使(1)具有下式的含磷单体:H,C 1 -C 4烷基,苯基,烷芳基或芳烷基, 与(2)饱和二羧酸或饱和二羧酸酐,(3)含双键的不饱和二羧酸或含双键的不饱和二羧酸酐,和(4)二元醇在金属 催化剂与酸组合以形成具有下式的不饱和聚酯低聚物:其中R 5和R 6分别是C 1 -C 4亚烷基,亚烷基,亚苯基或亚芳烷基,R 4是含乙烯基的基团,x是 整数1-10,y为1-10的整数,z为1-10的整数,(b)将所述不饱和聚酯低聚物与含乙烯基的单体共混。

Patent Agency Ranking