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。

公开(公告)号：US20160060444A1

公开(公告)日：2016-03-03

申请号：US14778799

申请日：2014-03-28

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Masahiko OZAWA

IPC: C08L25/06 ,  C08J9/00 ,  C08J9/14

CPC classification number: C08L25/06 ,  C08J9/0061 ,  C08J9/0066 ,  C08J9/141 ,  C08J9/18 ,  C08J9/20 ,  C08J9/232 ,  C08J2203/14 ,  C08J2325/06 ,  C08J2423/12 ,  C08L2203/14 ,  C08L23/10 ,  C08L23/12 ,  C08L23/06

Abstract: Composite resin particles including a polypropylene-based resin and a polystyrene-based resin, wherein the content of the polystyrene-based resin is 100 to 400 parts by mass with respect to 100 parts by mass of the polypropylene-based resin, a surface area section is in a state in which the polystyrene-based resin with a particle diameter of 0.3 μm or less is dispersed in the polypropylene-based resin, an outermost surface area section is in a state in which the polystyrene-based resin with a particle diameter of 0.3 to 1.5 μm is dispersed in the polypropylene-based resin, and the ratio of the absorbance derived from the polystyrene-based resin and the absorbance derived from the polypropylene-based resin obtained from an infrared absorption spectrum of the surface of the composite resin particles is 0.5 to 2.5.

Abstract translation: 包括聚丙烯类树脂和聚苯乙烯类树脂的复合树脂颗粒，其中聚苯乙烯类树脂的含量相对于聚丙烯类树脂100质量份为100〜400质量份，表面积部 处于聚丙烯类树脂中分散粒径为0.3μm以下的聚苯乙烯类树脂的状态，最外表面积为处于粒径为0.3μm以下的聚苯乙烯类树脂的状态 分散在聚丙烯类树脂中，聚苯乙烯类树脂的吸光度与由聚丙烯类树脂得到的吸光度的比例由复合树脂颗粒表面的红外吸收光谱得到 为0.5〜2.5。

公开(公告)号：US20140200282A1

公开(公告)日：2014-07-17

申请号：US14212090

申请日：2014-03-14

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Yasutaka TSUTSUI ,  Masahiko OZAWA

IPC: C08J9/18

CPC classification number: C08J9/18 ,  C08J9/0061 ,  C08J9/141 ,  C08J2203/14 ,  C08J2325/06 ,  C08J2351/06 ,  C08J2423/00

Abstract: Expandable composite resin particles for long-term storage, comprising 500 to 5000 ppm of water and 7.5 to 11.0% by weight of pentane in composite resin of polyolefin-based resin and polystyrene-based resin.

Abstract translation: 用于长期储存的可膨胀复合树脂颗粒在聚烯烃类树脂和聚苯乙烯类树脂的复合树脂中包含500至5000ppm的水和7.5至11.0重量％的戊烷。