1.
    发明专利
    未知

    公开(公告)号:BRPI0721526A2

    公开(公告)日:2014-04-08

    申请号:BRPI0721526

    申请日:2007-12-27

    Abstract: A carbon-containing modified polystyrene type resin particle of the present invention includes: a carbon-containing polypropylene type resin, and a polystyrene type resin in an amount of not less than 100 parts by weight but less than 400 parts by weight per 100 parts by weight of the carbon-containing polypropylene type resin, wherein the polystyrene type resin ratio at the central part of the particle is at least 1.2 times the polystyrene type resin ratio of the overall particle, the polystyrene type resin ratio being calculated by using the ratio (D698/D1376) of absorbances at 698 cm -1 and 1376 cm -1 which are obtained by infrared absorption spectra measured by ATR infrared spectroscopic analysis.

    COMPOSITE RESIN PRE-EXPANDED PARTICLES CONTAINING CARBON BLACK AND METHOD FOR PRODUCING SAME, AND EXPANDED MOLDED ARTICLE
    6.
    发明公开
    COMPOSITE RESIN PRE-EXPANDED PARTICLES CONTAINING CARBON BLACK AND METHOD FOR PRODUCING SAME, AND EXPANDED MOLDED ARTICLE 审中-公开
    在罗素和预拉伸树脂复合颗粒的方法及其制造和制品拉伸形式

    公开(公告)号:EP3053949A4

    公开(公告)日:2017-05-31

    申请号:EP14846852

    申请日:2014-09-11

    Abstract: Carbon black-containing composite resin pre-expanded particles comprising 100 to 400 parts by mass of a polystyrene-based resin with respect to 100 parts by mass of a carbon black-containing polyolefin-based resin; having a carbon black content of 0.5 to 5.0% by mass and a bulk density of 0.015 to 0.25 g/cm 3 ; and having an outermost layer of 30 to 80 µm after undergoing the following tests: (a) one of the carbon black-containing composite resin pre-expanded particles is sliced into a 1-mm slice in such a way that cross-section surfaces of cells are exposed on both surfaces of the slice; (b) the obtained slice is immersed in toluene at 25°C for 24 hours to extract a polystyrene-based resin component as described above; (c) the cross-section surface of the slice is then subjected to magnified photographing by a microscope; (d) the obtained microscope image is observed.

    Abstract translation: 含炭黑的复合树脂预发泡通过含炭黑的聚烯烃系树脂的质量,包括100至400份,相对于100份聚苯乙烯系树脂的质量的颗粒; 具有0.5碳黑含量,以5.0质量%和0.015〜0.25克/ cm 3的堆积密度; 和具有30〜80微米的最外层进行下列试验后:(a)所述的碳的一个复合树脂预发泡粒子的含黑切成1mm的片在寻求一种方法的那样的横截面的表面 细胞暴露在片的两个表面上; (B)将得到的切片在25℃下浸渍于甲苯中24小时萃取聚苯乙烯系树脂成分如上所述; (C)的片的横截面表面然后经受通过显微镜放大拍摄; (D)将所得到的显微镜图像观察。

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