Esters of phosphorous acid
    3.
    发明授权
    Esters of phosphorous acid 失效
    亚磷酸酯

    公开(公告)号:US4323501A

    公开(公告)日:1982-04-06

    申请号:US843186

    申请日:1977-10-18

    摘要: Phosphites of the general formula: ##STR1## in which n.sub.1 is an integer;n.sub.2 is 0 or an integer;n.sub.3 is an integer;at least one of the groups R is an oxetane group as hereinafter defined or a hydrocarbon radical being substituted at least by one oxetane group as hereinafter defined;the remaining groups R are selected from alkyl, aralkyl, cycloalkyl, aryl and hetaryl groups; andthe group or groups Ar are the same or different at-least-divalent aromatic groups the free valencies of which are directly linked to the aromatic nuclei; anda process for their preparation.

    摘要翻译: 亚磷酸酯,其通式为:其中n1为整数; n2为0或整数; n3是整数; R中的至少一个是下文定义的氧杂环丁烷基团或至少被一个以下定义的氧杂环丁烷基团取代的烃基; 剩余的基团R选自烷基,芳烷基,环烷基,芳基和杂芳基; 并且所述基团Ar是相同或不同的至少二价芳族基团,其自由基直接连接到芳香核上; 及其准备过程。

    Boric acid esters and oxetanes for stabilizing phosphite-free
polycarbonates
    8.
    发明授权
    Boric acid esters and oxetanes for stabilizing phosphite-free polycarbonates 失效
    用于稳定不含亚磷酸酯的聚碳酸酯的硼酸酯和氧杂环丁烷

    公开(公告)号:US4225483A

    公开(公告)日:1980-09-30

    申请号:US953131

    申请日:1978-10-20

    CPC分类号: C08K5/55 C08K5/15

    摘要: Phosphite-free polycarbonate molding compositions are provided which contain either a boric acid ester containing oxetane groups, a mixture of a boric acid ester containing oxetane groups and a boron-free oxetane compound or a mixture of a boric acid ester which is free from oxetane groups and a boron-free oxetane compound, in amounts between about 0.01 and 1% by weight, relative to the weight of pure polycarbonate resin. A process for stabilizing phosphite-free polycarbonate compositions to light and heat without impairing their resistance to hydrolysis is also provided by the incorporation of either a boric acid ester containing oxetane groups, a mixture of a boric acid ester containing oxetane groups and a boron-free oxetane compound or a mixture of a boric acid ester which is free from oxetane groups and a boron-free oxetane compound.

    摘要翻译: 提供了不含亚磷酸酯的聚碳酸酯模塑组合物,其包含含有氧杂环丁烷基团的硼酸酯,含有氧杂环丁烷基团的硼酸酯和无硼氧杂环丁烷化合物的混合物或不含氧杂环丁烷基团的硼酸酯的混合物 和无硼氧杂环丁烷化合物,其量相对于纯聚碳酸酯树脂的重量为约0.01至1重量%。 通过掺入含有氧杂环丁烷基团的硼酸酯,含有氧杂环丁烷基团的硼酸酯的混合物和无硼的硼酸酯,可以提供将不含亚磷酸酯的聚碳酸酯组合物稳定发光和加热而不损害其抗水解性的方法 氧杂环丁烷化合物或不含氧杂环丁烷基的硼酸酯和无硼氧杂环丁烷化合物的混合物。

    Esters of phosphorous acid
    9.
    发明授权
    Esters of phosphorous acid 失效
    亚磷酸酯

    公开(公告)号:US4073769A

    公开(公告)日:1978-02-14

    申请号:US635010

    申请日:1975-11-25

    IPC分类号: C07F9/655 C08K5/529 C08K5/52

    CPC分类号: C07F9/6551 C08K5/529

    摘要: Phosphites of the general formula: ##STR1## in which N.sub.1 IS AN INTEGER; n.sub.2 is 0 or an integer; n.sub.3 is an integer;At least one of the groups R is an oxetane group as hereinafter defined or a hydrocarbon radical being substituted at least by one oxetane group as hereinafter defined;The remaining groups R are selected from alkyl, aralkyl, cycloalkyl, aryl and hetaryl groups; andThe group or groups Ar are the same or different at-least-divalent aromatic groups the free valencies of which are directly linked to the aromatic nuclei;And a process for their preparation.

    摘要翻译: 亚磷酸酯,其通式如下:,其中N1是AN INTEGER; N2 IS 0或一个整数; N3是整数; 基团中的至少一个R是下文定义的氧杂环丁烷基团或至少被一个如下文定义的氧杂环丁烷基团取代的烃基; 剩余基团R选自烷基,芳烷基,环烷基,芳基和杂芳基; 和基团Ar是相同或不同的至少二价芳族基团,其自由基直接连接到芳香核上; 及其制备方法。