公开(公告)号：US09193842B2

公开(公告)日：2015-11-24

申请号：US14168930

申请日：2014-01-30

Applicant: KANEKA CORPORATION

Inventor： Kiyotaka Nakayama

IPC: C08F110/02 ,  B29C44/02 ,  C08L23/08 ,  C08J9/16 ,  C08J9/00 ,  C08J9/12 ,  C08J9/18 ,  C08J9/232 ,  C08L23/04 ,  C08J9/228

CPC classification number: C08J9/16 ,  C08J9/0023 ,  C08J9/12 ,  C08J9/18 ,  C08J9/228 ,  C08J9/232 ,  C08J2201/034 ,  C08J2323/06 ,  C08J2323/08 ,  C08L23/04

Abstract: A noncrosslinked polyethylene resin expanded particle is provided having a bulk density BD in a range of 10 g/L to 100 g/L, the particle being obtained by expanding a polyethylene resin particle whose density is in a range of 0.920 g/cm3 to 0.940 g/cm3, the noncrosslinked polyethylene resin expanded particle having a shrinkage factor in a range of 2% to 30%, the shrinkage factor being obtained by the following formula (1): Shrinkage Factor=(BD−VBD)×100/VBD  (1), wherein: the BD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at 0.1 MPa (at a normal atmospheric pressure); and the VBD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at a reduced pressure of 0.002 MPa or less.

Abstract translation: 提供了一种非交联聚乙烯树脂发泡粒子，其堆积密度BD在10g / L至100g / L的范围内，该颗粒是通过使密度为0.920g / cm 3至0.940的聚乙烯树脂颗粒膨胀而获得的 g / cm3，收缩率在2％〜30％的收缩率的非交联聚乙烯树脂发泡体，收缩率由下式（1）求出：收缩系数=（BD-VBD）×100 / VBD（ 1），其中：非交联聚乙烯发泡粒子的BD为23℃，0.1MPa（正常大气压）时的体积密度; 非交联聚乙烯发泡粒子的VBD为23℃，0.002MPa以下的减压下的体积密度。

公开(公告)号：US09127135B2

公开(公告)日：2015-09-08

申请号：US13984040

申请日：2012-02-29

Applicant: Yasutaka Tsutsui ,  Shingo Terasaki

Inventor： Yasutaka Tsutsui ,  Shingo Terasaki

IPC: C08J9/35 ,  C08J9/00 ,  C08J9/14 ,  C08F257/02 ,  C08J9/18 ,  C08J9/224 ,  C08J9/232 ,  C08F285/00 ,  C08F220/18

CPC classification number: C08J9/35 ,  C08F257/02 ,  C08F285/00 ,  C08F2220/1808 ,  C08F2220/1825 ,  C08F2220/1858 ,  C08J9/0061 ,  C08J9/141 ,  C08J9/18 ,  C08J9/224 ,  C08J9/232 ,  C08J2201/034 ,  C08J2201/036 ,  C08J2203/14 ,  C08J2325/06 ,  C08J2351/00 ,  C08J2433/08 ,  C08F212/08 ,  C08F220/18

Abstract: Expanded composite polystyrene-based resin particles having a plurality of cells and cell membranes separating the plurality of cells, said cell membranes including a polystyrene-based resin forming a continuous phase and polyacrylic acid alkyl ester-based resin fine particles dispersed in said continuous phase to form a dispersed phase, and said polystyrene-based resin being complexed with said polyacrylic acid alkyl ester-based resin fine particles, wherein said dispersed phase is present in the form of a plurality of layers in a cell membrane thickness direction in a cell membrane cross-section of said expanded composite polystyrene-based resin particles.

Abstract translation: 具有分离多个细胞的多个细胞和细胞膜的发泡复合聚苯乙烯类树脂颗粒，所述细胞膜包含形成连续相的聚苯乙烯类树脂和分散在所述连续相中的聚丙烯酸烷基酯类树脂细颗粒 形成分散相，并且所述聚苯乙烯类树脂与所述聚丙烯酸烷基酯类树脂微粒络合，其中所述分散相以细胞膜厚度方向的多层形式存在于细胞膜交叉 对所述膨胀的复合聚苯乙烯基树脂颗粒进行切割。

公开(公告)号：US09040599B2

公开(公告)日：2015-05-26

申请号：US13500215

申请日：2010-09-28

Applicant: Kenichi Senda

Inventor： Kenichi Senda

IPC: C08F110/06 ,  C08J9/16 ,  C08F210/06 ,  B29C44/34 ,  C08F2/00 ,  C08F4/659 ,  C08F4/6592

CPC classification number: C08F210/06 ,  B29C44/3465 ,  C08F2/001 ,  C08F4/659 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08J9/122 ,  C08J9/16 ,  C08J9/18 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2205/052 ,  C08J2323/14 ,  C08F210/08 ,  C08F210/16 ,  C08F2500/20

Abstract: Polypropylene resin expanded particles include polypropylene resin as base material resin having at least two melting peaks on a DSC curve, the at least two melting peaks including (i) a lowest-temperature melting peak of 100° C. or more but 130° C. or less and (ii) a highest-temperature melting peak of 140° C. or more but 160° C. or less, so that the expanded particles: produce an in-mold foaming molded product at a very low mold heating steam pressure; exhibit low distortion, low shrinkage, and a wide range of heating condition for molding, even if the mold heating steam pressure is increased; have satisfactory moldability when the expanded particles are molded by using a mold having a complicated shape or a large mold; and maintain properties such as compressive strength, substantially unimpaired, when the expanded particles make the in-mold foaming molded product.

Abstract translation: 聚丙烯树脂发泡颗粒包括作为基材的聚丙烯树脂，其在DSC曲线上具有至少两个熔融峰，所述至少两个熔融峰包括（i）最低温度熔融峰为100℃以上至130℃。 以下，（ii）140℃以上且160℃以下的最高温度熔融峰，使得发泡粒子在非常低的模具加热蒸汽压下产生模内发泡成型体; 即使模具加热蒸汽压力增加，表现出低变形，低收缩和用于成型的宽范围的加热条件; 当通过使用具有复杂形状的模具或大型模具模制发泡颗粒时，具有令人满意的成型性; 并且当发泡颗粒形成模内发泡模制产品时，保持诸如抗压强度，基本上不受损的性能。

公开(公告)号：US20140145364A1

公开(公告)日：2014-05-29

申请号：US14168930

申请日：2014-01-30

Applicant: KANEKA CORPORATION

Inventor： Kiyotaka NAKAYAMA

IPC: C08J9/228

CPC classification number: C08J9/16 ,  C08J9/0023 ,  C08J9/12 ,  C08J9/18 ,  C08J9/228 ,  C08J9/232 ,  C08J2201/034 ,  C08J2323/06 ,  C08J2323/08 ,  C08L23/04

Abstract: A noncrosslinked polyethylene resin expanded particle is provided having a bulk density BD in a range of 10 g/L to 100 g/L, the particle being obtained by expanding a polyethylene resin particle whose density is in a range of 0.920 g/cm3 to 0.940 g/cm3, the noncrosslinked polyethylene resin expanded particle having a shrinkage factor in a range of 2% to 30%, the shrinkage factor being obtained by the following formula (1): Shrinkage Factor=(BD−VBD)×100/VBD  (1), wherein: the BD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at 0.1 MPa (at a normal atmospheric pressure); and the VBD of the noncrosslinked polyethylene expanded particle is a bulk density at 23° C. and at a reduced pressure of 0.002 MPa or less.

Abstract translation: 提供了一种非交联聚乙烯树脂发泡粒子，其堆积密度BD在10g / L至100g / L的范围内，该颗粒通过使密度在0.920g / cm 3至0.940的范围内的聚乙烯树脂颗粒膨胀而获得 g / cm3，收缩率在2％〜30％的收缩率的非交联聚乙烯树脂发泡体，收缩率由下式（1）求出：收缩系数=（BD-VBD）×100 / VBD（ 1），其中：非交联聚乙烯发泡粒子的BD为23℃，0.1MPa（正常大气压）时的体积密度; 非交联聚乙烯发泡粒子的VBD为23℃，0.002MPa以下的减压下的体积密度。