公开(公告)号：US09505898B2

公开(公告)日：2016-11-29

申请号：US14508016

申请日：2014-10-07

Applicant: JSP CORPORATION

Inventor： Masaomi Shima

IPC: C08J9/18 ,  C08J9/00 ,  C08J9/14 ,  C08J9/232 ,  C08L23/08

CPC classification number: C08J9/18 ,  C08J9/0061 ,  C08J9/141 ,  C08J9/232 ,  C08J2201/026 ,  C08J2203/14 ,  C08J2203/202 ,  C08J2205/052 ,  C08J2323/06 ,  C08J2325/06 ,  C08J2325/14 ,  C08J2423/08 ,  C08L23/0815 ,  C08L2203/14 ,  C08L2205/04 ,  C08L2312/00 ,  C08L25/06 ,  C08L23/06

Abstract: An expandable composite resin bead comprises: a composite resin containing a polyethylene resin and a polystyrene resin; and a blowing agent impregnating the composite resin. The composite resin contains 5 to 20 mass % of the polyethylene resin and 80 to 95 mass % of the polystyrene resin. The blowing agent is an organic physical blowing agent. Furthermore, in the expandable composite resin bead, a predetermined swelling degree in methyl ethyl ketone at a temperature of 23° C. is not lower than 1.25.

Abstract translation: 可膨胀复合树脂珠包括：含有聚乙烯树脂和聚苯乙烯树脂的复合树脂; 和浸渍复合树脂的发泡剂。 复合树脂含有5〜20质量％的聚乙烯树脂和80〜95质量％的聚苯乙烯树脂。 发泡剂是有机物理发泡剂。 此外，在可膨胀复合树脂珠中，甲基乙基酮在23℃的温度下的预定溶胀度不低于1.25。

公开(公告)号：US09815956B2

公开(公告)日：2017-11-14

申请号：US14824564

申请日：2015-08-12

Applicant: JSP CORPORATION

Inventor： Masaomi Shima

IPC: C08J9/14 ,  C08J9/22 ,  C08J9/16 ,  C08J9/232

CPC classification number: C08J9/22 ,  C08J9/141 ,  C08J9/16 ,  C08J9/232 ,  C08J2203/14 ,  C08J2351/06

Abstract: An expandable composite resin bead containing an organic physical blowing agent and a base resin composed of a composite resin obtained by polymerizing a styrene monomer in a polypropylene resin. The styrene monomer is polymerized in an amount of more than 400 parts by mass and not more than 1900 parts by mass with respect to 100 parts by mass of the polypropylene resin. The composite resin contains xylene solubles to be obtained through xylene solvent Soxhlet extraction of the expandable composite resin bead, the xylene solubles contain acetone solubles to be obtained through dissolution of the xylene solubles into acetone, and the acetone solubles have an absorbance ratio A (D698/D1376) of an absorbance D698 to an absorbance D1376 that are respectively measured at a wavenumber of 698 cm−1 and 1376 cm−1 as infrared absorption spectra of the acetone solubles within a range of from 8.5 to 23.

公开(公告)号：US09000060B2

公开(公告)日：2015-04-07

申请号：US14279907

申请日：2014-05-16

Applicant: JSP Corporation

Inventor： Masaomi Shima

IPC: C08J9/18 ,  C08J9/16 ,  C08J9/40 ,  C08J9/14

CPC classification number: C08J9/18 ,  C08J9/141 ,  C08J9/16 ,  C08J2203/14 ,  C08J2325/04 ,  C08J2423/02

Abstract: Disclosed is expandable modified resin beads (1), comprising a modified resin as a base resin in which a dispersion phase (3) containing a styrene resin as a major component is dispersed in a continuous phase (2) containing an olefin resin as a major component, and a physical blowing agent. Further disclosed are expanded modified resin beads obtained by expanding the expandable modified resin beads (1), and a foamed molded article formed from the expanded modified resin beads obtained by molding the expanded modified resin beads in a mold. A volume average diameter of the dispersion phase (3) dispersed in the continuous phase (2) is 0.55 μm or more. The expandable modified resin beads (1) have, as a base resin, the modified resin contains 80 to 50 parts by mass of the styrene resin with respect to 20 to 50 parts by mass parts of the olefin resins.

Abstract translation: 公开了一种可膨胀改性树脂珠（1），其包含作为基础树脂的改性树脂，其中以含有苯乙烯树脂为主要成分的分散相（3）分散在包含烯烃树脂作为主要的连续相（2）中 组分和物理发泡剂。 进一步公开了通过膨胀可膨胀改性树脂珠（1）而获得的膨胀改性树脂珠，以及由通过在模具中成型发泡改性树脂珠而获得的发泡改性树脂珠形成的发泡模塑制品。 分散在连续相（2）中的分散相（3）的体积平均直径为0.55μm以上。 可膨胀改性树脂珠（1）以20〜50质量份的烯烃系树脂作为基础树脂具有苯乙烯系树脂80〜50质量份。