Polycarbonate molded bodies with improved optical properties
    1.
    发明授权
    Polycarbonate molded bodies with improved optical properties 失效
    具有改善光学性能的聚碳酸酯模制体

    公开(公告)号:US06833193B2

    公开(公告)日:2004-12-21

    申请号:US10220770

    申请日:2002-09-05

    IPC分类号: B32B2736

    摘要: A polycarbonate molding having improved optical properties is disclosed. The molding features an angle of deflection &agr;&egr; (min) determined in a accordance with DIN 52305-A-AS of ≦2.0 and a refractive index D&egr; (min) determined in accordance with DIN 52305-A-AZ of ≦0.05. The molding is prepared from a molding composition that contains a branched polycarbonate having a weight average molecular weight of 25,000 to 40,000 and melt volume rate of 2 to 20 cm3/10 min (300° C.; 1.2 kg) determined in accordance with ISO 1133.

    摘要翻译: 公开了具有改进的光学特性的聚碳酸酯模制品。 模制件具有根据<= 2.0的DIN 52305-A-AS确定的偏转角αepsilon(min)和根据DIN 52305-A-AZ确定的<= 0.05的折射率Depsilon(min)。 该模塑制品由包含重均分子量为25,000至40,000的分支聚碳酸酯和2至20厘米3/10分钟(300℃; 1.2千克)的熔体体积率按照 与ISO 1133。

    Water-dispersing coated shaped bodies
    2.
    发明授权
    Water-dispersing coated shaped bodies 失效
    水分散涂层成型体

    公开(公告)号:US06572970B1

    公开(公告)日:2003-06-03

    申请号:US09719844

    申请日:2000-12-18

    IPC分类号: B32B904

    摘要: A process for the production of coated planar moldings of thermoplastics is disclosed. The process entails extrusion of a molded body, cooling of the molding, applying the aqueous-based coating agent and drying. The coating agent, having a pH value of less than 6, contains a salt of sulfondicarboxylic diester, a water-insoluble oxide of metal or semi-metal and an acid/water mixture. It is applied to at least one surface of the molding immediately after the production of the molding and with the aid of an application roll.

    摘要翻译: 公开了一种用于生产热塑性塑料的涂层平面模塑件的方法。 该方法需要挤出成型体,冷却模制品,涂覆水性涂料并干燥。 pH值小于6的涂层剂含有磺基二羧酸二盐,金属或半金属的水不溶性氧化物和酸/水混合物的盐。 在制造模制件之后并借助于涂布辊将其应用于模制品的至少一个表面。

    Recyclable thermoplastics foam of high glass temperature
    8.
    发明授权
    Recyclable thermoplastics foam of high glass temperature 失效
    可回收的热塑性塑料泡沫玻璃温度高

    公开(公告)号:US5300543A

    公开(公告)日:1994-04-05

    申请号:US127724

    申请日:1993-09-28

    CPC分类号: C08J9/12

    摘要: A thermoplastic molding composition suitable for the preparation of foam is disclosed. The composition comprises a thermoplastic resinous component and a foaming agent which includes A) (i) 0.01 to 4.8% alumina hydrate (aluminum hydroxide) in combination with (ii) 0.01 to 4.8% of an acidic additive or B) 0.01 to 4.8% of the reaction product of said (i) and said (ii), the percentages being relative to the weight of the composition to be foamed. The invention is based on the finding that the foaming of the composition does not lead to any significant reduction in molecular weight of the resinous component or to troublesome discoloration of the foam, even during its re-extrusion.

    摘要翻译: 公开了一种适于制备泡沫的热塑性模塑组合物。 该组合物包含热塑性树脂组分和发泡剂,其包括A)(i)0.01至4.8%的氧化铝水合物(氢氧化铝)与(ii)0.01至4.8%的酸性添加剂的组合,或B)0.01至4.8%的 所述(i)和所述(ii)的反应产物的百分比相对于要发泡的组合物的重量。 本发明基于以下发现:组合物的发泡不会导致树脂组分的分子量的任何显着降低,或者即使在其再挤出期间泡沫的麻烦变色。