公开(公告)号：US20160060413A1

公开(公告)日：2016-03-03

申请号：US14778767

申请日：2014-03-27

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Masahiko OZAWA ,  Akira ISAYAMA

IPC: C08J9/00

CPC classification number: C08J9/0061 ,  C08J9/141 ,  C08J9/18 ,  C08J9/20 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/14 ,  C08J2325/06 ,  C08J2423/08

Abstract: A composite resin expanded molded article comprising: 100 parts by mass of an ethylene-vinyl acetate copolymer; and 100 to 400 parts by mass of a polystyrene-based resin, wherein the composite resin expanded molded article has an average cell diameter D of 100 to 500 μm and an average cell membrane thickness T of 1 to 5 μm.

Abstract translation: 1.一种复合树脂发泡成型体，其特征在于，含有100质量份乙烯 - 乙酸乙烯酯共聚物; 和100〜400质量份的聚苯乙烯类树脂，其中复合树脂发泡成型体的平均泡孔直径D为100〜500μm，平均泡孔膜厚T为1〜5μm。

公开(公告)号：US20160229971A1

公开(公告)日：2016-08-11

申请号：US15023005

申请日：2014-09-11

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Akira ISAYAMA ,  Masahiko OZAWA

IPC: C08J9/00 ,  C08J9/22 ,  C08J9/14 ,  C08J9/18

CPC classification number: C08J9/0066 ,  C08J9/0014 ,  C08J9/0019 ,  C08J9/0028 ,  C08J9/0033 ,  C08J9/0061 ,  C08J9/0095 ,  C08J9/141 ,  C08J9/18 ,  C08J9/22 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2325/06 ,  C08J2423/06 ,  C08J2423/08 ,  C08J2423/12

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/cm3; and having an outermost layer of 30 to 80 pm 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: 含有炭黑的复合树脂预发泡粒子，相对于100质量份含炭黑的聚烯烃类树脂，含有100〜400质量份的聚苯乙烯类树脂; 炭黑含量为0.5〜5.0质量％，堆积密度为0.015〜0.25g / cm3; 并在进行以下试验后具有30至80μm的最外层：（a）将含炭黑的复合树脂预发泡颗粒之一切成1mm切片，使得横截面为 细胞暴露在切片的两个表面上; （b）将得到的切片在25℃下浸入甲苯中24小时以提取如上所述的聚苯乙烯类树脂组分; （c）切片的横截面由显微镜进行放大拍摄; （d）观察所得显微镜图像。