公开(公告)号：US20150001451A1

公开(公告)日：2015-01-01

申请号：US14365406

申请日：2012-12-06

Applicant: JSP CORPORATION

Inventor： Takuya Chiba ,  Masaharu Oikawa ,  Mitsuru Shinohara

IPC: H01B1/24 ,  B29C44/00 ,  B29B7/00

CPC classification number: H01B1/24 ,  B29B7/002 ,  B29C44/005 ,  B29K2023/0625 ,  B29K2023/065 ,  B29K2023/12 ,  B29K2105/0002 ,  B29K2105/0023 ,  B29K2105/046 ,  B29K2995/0013 ,  C08J9/0061 ,  C08J9/0066 ,  C08J9/122 ,  C08J9/16 ,  C08J9/18 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2323/12 ,  C08J2323/14 ,  C08J2423/06 ,  C08J2423/08 ,  C08K3/04 ,  C08L23/04 ,  C08L23/10 ,  H01R13/6485 ,  C08L23/06 ,  C08L23/0807

Abstract: An electrostatic dissipative, polypropylene-based resin expanded bead containing electrically conductive carbon black, having an apparent density of 10 to 120 kg/m3 and formed of a base resin which includes a polypropylene resin forming a continuous phase, and a polyethylene resin forming dispersed phases dispersed in the continuous phase, with the carbon black being unevenly distributed to the dispersed phases side. The polyethylene resin is an ethylene homopolymer or a copolymer of ethylene and C4 to C6 α-olefin and a weight ratio of the polypropylene resin to the polyethylene resin is 99.5:0.5 to 65:35. A molded article obtained by in-mold molding of such expanded beads exhibits electrostatic dissipative properties with a surface resistivity in the range of 1×105 to 1×1010Ω in a stable manner.

Abstract translation: 含有导电性炭黑的静电耗散性聚丙烯系树脂发泡珠，其表观密度为10〜120kg / m 3，由包含形成连续相的聚丙烯树脂的基础树脂形成，形成分散相的聚乙烯树脂 分散在连续相中，炭黑不均匀地分布在分散相侧。 聚乙烯树脂是乙烯均聚物或乙烯与C 4〜C 6α-烯烃的共聚物，聚丙烯树脂与聚乙烯树脂的重量比为99.5:0.5〜65:35。 通过这种发泡珠的模内成型获得的模制品表现出静电耗散性，表面电阻率在1×105〜1×1010＆OHgr的范围内。 以稳定的方式。

公开(公告)号：US20140171524A1

公开(公告)日：2014-06-19

申请号：US14105685

申请日：2013-12-13

Applicant: JSP Corporation

Inventor： Mitsuru SHINOHARA ,  Masaharu OIKAWA

IPC: C08F14/22 ,  C08J9/18

CPC classification number: C08F14/22 ,  C08F214/22 ,  C08J9/122 ,  C08J9/125 ,  C08J9/18 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2203/10 ,  C08J2205/044 ,  C08J2205/052 ,  C08J2327/16

Abstract: There is provided polyvinylidene fluoride resin expanded beads which have a high expansion ratio, do not shrink easily, and are capable of obtaining a molded article of the expanded beads that is excellent in mold reproducibility and dimensional stability. The polyvinylidene fluoride resin expanded beads include a polyvinylidene fluoride resin as a base resin, in which a flexural modulus of the polyvinylidene fluoride resin is 450 MPa or more, a melt flow rate (MFR) of the polyvinylidene fluoride resin is 1 g/10 min or more at 230° C. and 2.16 kg load, an apparent density of the expanded beads is 25 to 150 g/L, and a closed cell content of the expanded beads is 80% or more.

Abstract translation: 提供具有高膨胀率的聚偏二氟乙烯树脂发泡珠，不容易收缩，并且能够获得模具再现性和尺寸稳定性优异的发泡珠粒的模塑制品。 聚偏二氟乙烯树脂发泡粒子包括聚偏氟乙烯树脂的挠曲模量为450MPa以上的聚偏二氟乙烯树脂作为基础树脂，聚偏二氟乙烯树脂的熔体流动速率（MFR）为1g / 10分钟 以上，230℃，2.16kg负荷下，发泡珠的表观密度为25〜150g / L，发泡珠的闭孔含量为80％以上。

公开(公告)号：US20130245142A1

公开(公告)日：2013-09-19

申请号：US13789191

申请日：2013-03-07

Applicant: JSP CORPORATION

Inventor： Akira OKUDA ,  Tatsuyuki ISHIKAWA ,  Naochika KOGURE

IPC: C08J9/12

CPC classification number: C08J9/122 ,  C08J9/149 ,  C08J2201/03 ,  C08J2203/10 ,  C08J2203/14 ,  C08J2203/162 ,  C08J2203/202 ,  C08J2205/052 ,  C08J2325/06

Abstract: A method for producing an extruded heat-insulating foam board having a thickness of 10 to 150 mm, an apparent density of 20 to 50 kg/m3 and a closed cell content of at least 80% by extrusion foaming of a foamable resin melt containing a base resin composed primarily of a polystyrene resin, a physical blowing agent and a flame retardant, wherein 3 to 50 mol % of a hydrofluoroolefin, 30 to 70 mol % of a saturated hydrocarbon having 3 to 5 carbon atoms, and 5 to 50 mol % of water and/or carbon dioxide (where the sum of the contents of the hydrofluoroolefin, saturated hydrocarbon having 3 to 5 carbon atoms, water and/or carbon dioxide is 100 mol %) are used as the physical blowing agent. The extruded polystyrene resin heat-insulating foam board is produced with good extrusion foamability and moldability and has a high expansion ratio, a large thickness, excellent long-term heat-insulating properties and flame retardancy, and good appearance.

Abstract translation: 一种挤出发泡性树脂熔体的制造方法，其特征在于，所述绝热泡沫板的厚度为10〜150mm，表观密度为20〜50kg / m 3，闭孔含量为80％以上， 主要由聚苯乙烯树脂，物理发泡剂和阻燃剂组成的基础树脂，其中3〜50摩尔％的氢氟烯烃，30〜70摩尔％的碳原子数3〜5的饱和烃和5〜50摩尔％ 的水和/或二氧化碳（其中氢氟烯烃，碳原子数3〜5的饱和烃，水和/或二氧化碳的含量之和为100摩尔％）的总和用作物理发泡剂。 挤出聚苯乙烯树脂绝热泡沫板制造具有良好的挤出发泡性和成型性，并且具有高膨胀率，大厚度，优异的长期绝热性和阻燃性，以及良好的外观。

公开(公告)号：US20030042644A1

公开(公告)日：2003-03-06

申请号：US10170725

申请日：2002-06-14

Applicant: JSP CORPORATION

Inventor： Hiroyuki Gokuraku ,  Naochika Kogure ,  Seiji Takahashi ,  Daisuke Imanari ,  Masato Naito

IPC: B29C044/00 ,  B32B003/26

CPC classification number: C08J9/149 ,  B29C44/505 ,  B29C48/07 ,  B29C48/903 ,  B29C48/908 ,  C08J9/141 ,  C08J2201/03 ,  C08J2203/12 ,  C08J2203/14 ,  C08J2325/06 ,  Y10T428/249953

Abstract: An extruded, polystyrene-based resin foam plate produced by extruding a foamable molten composition containing a polystyrene-based resin and a blowing agent consisting of (a) isobutane and (b) a blowing agent component other than isobutane, chlorofluorocarbons and fluorocarbons from a high pressure zone into a lower pressure zone. The extruded foam plate has a thickness of at least 10 mm and an apparent density of 25-60 kg/m3 contains residual isobutane in an amount of 0.45-0.80 mol per 1 kg thereof, has cells having an average diameter in the thickness direction thereof of 0.05-0.18 mm and a cell strain rate of 0.7-1.2, wherein the cell strain rate is obtained by dividing the average diameter in the thickness direction of the extruded foam plate by the average diameter in the horizontal direction of the extruded foam plate, meets the flammability standard on extruded polystyrene foam insulation plates as defined in JIS A9511-1995, and has a thermal conductivity of not greater than 0.028 W/mnullK.

Abstract translation: 挤出的基于聚苯乙烯的树脂发泡板，其通过挤出含有聚苯乙烯类树脂的发泡性熔融组合物和由（a）异丁烷和（b）异丁烷，氯氟烃和碳氟化合物以外的发泡剂组分组成的可发泡熔融组合物 压力区进入低压区。 挤出的泡沫板的厚度为至少10mm，表观密度为25-60kg / m 3，其含有残留的异丁烷，每1kg为0.45-0.80mol，具有其厚度方向的平均直径的细胞 为0.05〜0.18mm，细胞应变率为0.7-1.2，其中细胞应变率通过将挤出泡沫板的厚度方向上的平均直径除以挤出泡沫板的水平方向的平均直径而得到， 符合JIS A9511-1995定义的挤压聚苯乙烯泡沫绝缘板的可燃性标准，导热率不大于0.028 W / mK

公开(公告)号：US20250162212A1

公开(公告)日：2025-05-22

申请号：US18840104

申请日：2023-03-10

Applicant: JSP CORPORATION

Inventor： Tomohiro MIURA ,  Kenta SASAKI

IPC: B29C44/34 ,  B29C44/02 ,  B29C44/44 ,  B29C44/60 ,  B29K23/00

Abstract: A method for producing a molded article of thermoplastic resin expanded beads that includes cracking filling and in-mold molding. The expanded beads have a columnar shape and a defective portion that is a through hole and/or a groove. A ratio Ca/A of an average cross-sectional area Ca per defective portion to an average cross-sectional area A of a cut surface of the expanded bead obtained by cutting the expanded bead at a center in an axial direction along a plane perpendicular to the axial direction is 0.01 or more and 0.20 or less, and a ratio Ct/A of a total cross-sectional area Ct of the defective portion to the average cross-sectional area A of the expanded bead is 0.02 or more and 0.20 or less. When the mold is completely closed, a filling rate F of the expanded beads is 125% or more and 220% or less.

公开(公告)号：US20250162206A1

公开(公告)日：2025-05-22

申请号：US18841513

申请日：2023-03-10

Applicant: JSP CORPORATION

Inventor： Tomohiro MIURA ,  Kenta SASAKI

IPC: B29C39/00 ,  B29C39/10 ,  B29C39/24 ,  B29C39/38 ,  B29K23/00 ,  B29K105/04

Abstract: A method for producing a molded article of thermoplastic resin expanded beads includes a cracking filling step and an in-mold molding step. Expanded beads to be used in the cracking filling step each have a columnar shape and each have one or more defective portions of one or two kinds, the defective portions being selected from the group consisting of through holes and grooves. A molding cavity of a mold has a first portion having a length in an opening/closing direction of the mold greater than an average length LA and a second portion shorter than the average length LA. In the cracking filling step, a difference P2max−P1min between a minimum value P1min of the compression rate of the first portion and a maximum value P2max of the compression rate of the second portion is 5% or more and 100% or less.

公开(公告)号：US20250154073A1

公开(公告)日：2025-05-15

申请号：US18724429

申请日：2022-12-23

Applicant: JSP CORPORATION

Inventor： Naoki NAITO ,  Jinichiro NORO

IPC: C04B38/10 ,  C04B35/18

Abstract: An inorganic foam comprising an inorganic polymer having leucite crystal structure as a base material, the area of the peak derived from leucite crystal in the X-ray diffraction spectrum of the inorganic foam satisfies the following formula (1): D(geo)/D(pur)≥0.5 (1). In formula (1), D(geo) represents the area of the peak located at 2θ=27.3° derived from leucite crystal in the X-ray diffraction spectrum of the inorganic foam, and D(pur) represents the area of the peak located at 2θ=27.3° derived from leucite crystal in the X-ray diffraction spectrum of leucite pure material.

公开(公告)号：US12275831B2

公开(公告)日：2025-04-15

申请号：US18278660

申请日：2021-12-21

Applicant: JSP CORPORATION

Inventor： Tokunobu Nohara ,  Yasutaka Ode

IPC: C08J9/18 ,  C08J3/12 ,  C08J9/12 ,  C08J9/232 ,  C08K3/04 ,  C08K5/17

Abstract: A method for producing polypropylene-based resin expanded beads includes dispersion, blowing agent impregnation, and foaming steps. Beads used in the dispersion step include a core layer having a polypropylene-based resin as a base material resin, and a fusion-bonding layer covering core layer; the beads fusion-bonding layer includes carbon black and a NOR-type hindered amine; a carbon black blending ratio is adjusted to 0.5 wt % or more and 5 wt % or less; and an amine blending ratio of the beads is adjusted to 0.03 wt % or more and 0.5 wt % or less; the polypropylene-based resin expanded beads have a surface on which a fusion-bonding layer is located; the fusion-bonding layer includes the carbon black and hindered amine; a carbon black blending ratio is 0.5 wt % or more and 5 wt % or less; and a blending ratio of the hindered amine is 0.03 wt % or more and 0.5 wt % or less.

公开(公告)号：US20250043091A1

公开(公告)日：2025-02-06

申请号：US18782655

申请日：2024-07-24

Applicant: JSP CORPORATION

Inventor： Tatsuya HAYASHI

IPC: C08J9/18 ,  C08J3/12 ,  C08J3/20 ,  C08J9/00 ,  C08J9/12

Abstract: A polyamide-based resin melt obtained by melt-kneading a base resin, an organic compound-based additive (A), and an iodide-based additive (X) is granulated to prepare polyamide-based resin particles. The polyamide-based resin particles are expanded by using a physical blowing agent to produce polyamide-based resin expanded beads. The polyamide-based resin expanded beads are in-mold molded to produce a polyamide-based resin expanded molded article. The organic compound-based additive (A) is made of a hindered phenol-based compound and/or an organophosphorus-based compound. The iodide-based additive (X) is made of copper iodide, or copper iodide and potassium iodide.

公开(公告)号：US20240400782A1

公开(公告)日：2024-12-05

申请号：US18699674

申请日：2022-09-28

Applicant: JSP CORPORATION

Inventor： Takumi SAKAMURA ,  Hajime OHTA

IPC: C08J9/232 ,  C08J9/00 ,  C08J9/18 ,  C08K3/04

Abstract: A method for producing polypropylene-based resin expanded beads each having a through-hole by performing a first expanding step and a second expanding step is provided. In the first expanding step, tubular resin particles containing carbon black and having through-holes are dispersed in a dispersion medium and released to an environment under a low pressure, thereby obtaining first-step expanded beads having a bulk ratio of M1 times. In the second expanding step, the first-step expanded beads are further expanded to obtain polypropylene-based resin expanded beads having a bulk ratio of M2 times. The bulk ratio M1 is 5 times or more and 25 times or less. A ratio M2/M1 of the bulk ratio M2 to the bulk ratio M1 is 1.2 or more and 3.0 or less.