Method for preparation of block copolysiloxanecarbonates
    6.
    发明授权
    Method for preparation of block copolysiloxanecarbonates 失效
    嵌段共聚硅氧烷碳酸酯的制备方法

    公开(公告)号:US5504177A

    公开(公告)日:1996-04-02

    申请号:US397456

    申请日:1995-03-02

    CPC分类号: C08G64/186 C08G77/448

    摘要: Copolysiloxanecarbonates are prepared in the melt by the reaction of a diaryl carbonate such as diphenyl carbonate with a mixture of a dihydroxyaromatic compound and a carbonate-terminated polydiorganosiloxane, the latter typically prepared by reaction of a diaryl carbonate or aryl chloroformate with a hydroxyorgano-terminated polydiorganosiloxane. By this method, incorporation of silicone units in the copolysiloxanecarbonate is maximized.

    摘要翻译: 通过碳酸二芳基酯与二羟基芳族化合物和碳酸酯封端的聚二有机硅氧烷的混合物的反应在熔融物中制备共聚硅氧烷碳酸酯,后者通常通过碳酸二芳基酯或氯甲酸芳基酯与羟基有机基封端的聚二有机硅氧烷 。 通过这种方法,将聚硅氧烷碳酸酯中的硅氧烷单元的引入最大化。

    Thermoplastic resin and method using volatile, self-quenching
tertiaryamine catalyst
    7.
    发明授权
    Thermoplastic resin and method using volatile, self-quenching tertiaryamine catalyst 失效
    热塑性树脂和方法采用挥发性,自熄性的叔胺催化剂

    公开(公告)号:US5362840A

    公开(公告)日:1994-11-08

    申请号:US76038

    申请日:1993-06-15

    CPC分类号: C08G64/307

    摘要: The present invention discloses thermoplastic resins and methods for producing said resins utilizing a single component tertiary amine catalyst system. More particularly, the invention discloses resins such as high molecular weight polycarbonate resins that are produced by a solventless melt condensation reaction between diphenyl carbonate (DPC) and bisphenol A (BPA) in the presence of tertiary amine catalyst.

    摘要翻译: 本发明公开了热塑性树脂和使用单组分叔胺催化剂体系制备所述树脂的方法。 更具体地说,本发明公开了在叔胺催化剂存在下,通过在碳酸二苯酯(DPC)和双酚A(BPA)之间的无溶剂熔融缩合反应制备的高分子量聚碳酸酯树脂等树脂。

    Thermoplastic resin and method using heterocyclic amine catalyst
    9.
    发明授权
    Thermoplastic resin and method using heterocyclic amine catalyst 失效
    热塑性树脂和使用杂环胺催化剂的方法

    公开(公告)号:US5373083A

    公开(公告)日:1994-12-13

    申请号:US78374

    申请日:1993-06-17

    CPC分类号: C08G64/307

    摘要: The present invention discloses thermoplastic resins and methods for producing said resins utilizing a single component heterocyclic amine catalyst system. More particularly, the invention discloses resins such as high molecular weight polycarbonate resins that are produced by a solventless melt condensation reaction between diphenol carbonate (DPC) and bisphenol A (BPA) in the presence of a heterocyclic amine catalyst.

    摘要翻译: 本发明公开了使用单组分杂环胺催化剂体系的热塑性树脂和制备所述树脂的方法。 更具体地说,本发明公开了在杂环胺催化剂存在下,通过在二苯酚碳酸酯(DPC)和双酚A(BPA)之间的无溶剂熔融缩合反应制备的高分子量聚碳酸酯树脂等树脂。

    Floating dispenser
    10.
    发明授权
    Floating dispenser 有权
    浮动分配器

    公开(公告)号:US09174177B2

    公开(公告)日:2015-11-03

    申请号:US13573246

    申请日:2012-09-04

    摘要: A floating dispenser having an external float or an internal float for supporting a cartridge or cartridges for floatingly delivering a dispersant or dispersants to a body of water with the floating dispenser having cartridges rotationally positionable with respect to one another to control the rate of dispensing while the dispenser floats in an upright condition with the floating dispenser changing its flotation orientation in response to consumption of the dispersant or dispersants in the cartridge or cartridges to thereby provide a visual alert to replace a spent cartridge with a fresh cartridge. In addition, the inventions described herein permit changing the dispensing nature of the system from a multiple dispensing system to a single dispensing system without changing the floating characteristics of the floating dispensers through replacement of a dispersant in one of the cartridges with an inert or ballast material that has no effect on the water characteristics.

    摘要翻译: 具有外部浮子或内部浮子的浮动分配器,其用于支撑用于将分散剂或分散剂浮动地输送到水体中的墨盒或墨盒,所述浮动分配器具有可相对于彼此旋转定位的墨盒,以控制分配速率 分配器在直立状态下漂浮,随着浮动分配器响应于分散剂或分散剂在盒或盒中的消耗而改变其浮选方向,从而提供视觉警报以用新的盒替换废墨盒。 此外,本文所述的发明允许将系统的分配性质从多次分配系统改变到单个分配系统,而不用通过用惰性或压载材料替换其中一个盒中的分散剂来改变浮动分配器的浮动特性 对水的特性没有影响。