Granular form of a mixture of a nickel-quencher and a benzophenone and process for its preparation
    5.
    发明授权
    Granular form of a mixture of a nickel-quencher and a benzophenone and process for its preparation 失效
    颗粒形式的镍猝灭剂和二苯甲酮的混合物及其制备方法

    公开(公告)号:US06403679B1

    公开(公告)日:2002-06-11

    申请号:US09622045

    申请日:2000-08-23

    IPC分类号: C08K546

    摘要: Granular form of a mixture comprising: (a) a nickel-quencher corresponding to [2,2′-thio-bis(4-t-octyl-phenolate)-n-butylamine Nickel (II)]; (b) a 2-hydroxy-4-alkyloxybenzophenone corresponding to 2-hydroxy-4-n-octyloxybenzophenone; characterized in that it has two diffraction lines at angles 2&thgr;=17.593 and 2&thgr;=22.023 in the X-Ray diffraction spectrum from powders. The above granular form can be used as a light stabilizer for agricultural films based on polyolefins or olefinic copolymers.

    摘要翻译: 混合物的颗粒形式包括:(a)对应于[2,2'-硫代 - 双(4-叔辛基 - 苯酚) - 正丁胺镍(II)]的镍猝灭剂; (b)对应于2-羟基-4-正辛氧基二苯甲酮的2-羟基-4-烷氧基二苯甲酮; 其特征在于,在来自粉末的X射线衍射光谱中,它具有角度2θ= 17.593和2θ= 22.023的两条衍射线。 上述颗粒形式可用作基于聚烯烃或烯烃共聚物的农用薄膜的光稳定剂。

    Process for obtaining granular forms of additives for organic polymers
    6.
    发明授权
    Process for obtaining granular forms of additives for organic polymers 失效
    获得有机聚合物添加剂颗粒形式的方法

    公开(公告)号:US5844042A

    公开(公告)日:1998-12-01

    申请号:US937899

    申请日:1997-09-25

    摘要: Process for obtaining granular forms, from mixtures of powders of two or more additives for organic polymers, including extruding the mixture at a temperature of between about the melting point of the component with the lowest melting point and 140.degree. C., with the condition that, when the mixture consists of two additives, these are not tetrakis �3-(3,5-di-t-butyl-4-hydroxyphenyl) propionyloxymethyl!methane, either in an amorphous or crystalline form, and an antiacid.

    摘要翻译: 用于从两种或更多种有机聚合物添加剂的粉末混合物中获得颗粒形式的方法,包括在最低熔点和140℃的组分的熔点之间的温度下挤出混合物,条件是 当混合物由两种添加剂组成时,它们不是无定形或结晶形式的四[3-(3,5-二叔丁基-4-羟基苯基)丙酰氧基甲基]甲烷和抗酸剂。