公开(公告)号：CA2032822A1

公开(公告)日：1991-06-28

申请号：CA2032822

申请日：1990-12-20

Applicant: DIRECTOR-GENERAL OF AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY ,  JSP CORPORATION

Inventor： TOKIWA, YUTAKA ,  IWAMOTO, AKIRA

IPC: C08J9/14 ,  C08J9/00 ,  C08L25/04 ,  C08L67/00 ,  C08L101/00 ,  C08L101/16

公开(公告)号：WO2003078127A1

公开(公告)日：2003-09-25

申请号：PCT/JP2003/003318

申请日：2003-03-19

Applicant: JSP CORPORATION ,  HIRA, Akinobu ,  HASHIMOTO, Keiichi ,  SASAKI, Hidehiro

Inventor： HIRA, Akinobu ,  HASHIMOTO, Keiichi ,  SASAKI, Hidehiro

IPC: B29C44/04

CPC classification number: B29C44/0469 ,  B29C44/3461 ,  B29C44/445 ,  Y10T428/24992 ,  Y10T428/249953 ,  Y10T428/249971 ,  Y10T428/249977 ,  Y10T428/249981

Abstract: ABSTRACT A composite foamed polypropylene resin molding including a plurality of sections which are fuse-bonded to each other, at least two of which differ from each other in color, apparent density, composition and/or mechanical strengths, each of which is formed from expanded polypropylene resin beads, and each of which shows a high temperature endothermic peak in a DSC curve thereof. At least one of the sections satisfies conditions (d) to (f) at the same time: (d) to be formed from specific expanded polypropylene resin beads of a base resin having a tensile modulus of at least 1,200 MPa, (e) to have an apparent density D2 of 10-500 g/L, and (f) to have such a high temperature endothermic peak with a calorific of E2 J/g, wherein D2 and E2 have the relationship 20 - 0.020 X D2 ≤ E2 ≤ 65 - 0.100 X D2. The composite molding may be prepared by filling expanded polypropylene resin beads in each ofa plurality of contiguous spaces defined in a mold cavity and heating the expanded beads to fuse-bond respective expanded beads together into a unitary body. At least one of the spaces is filled with the specific expanded polypropylene resin beads.

Abstract translation: 摘要：一种复合发泡聚丙烯树脂模制品，其包括彼此熔合结合的多个部分，其中至少两个部分的颜色，表观密度，组成和/或机械强度彼此不同，每个部分由膨胀形成 聚丙烯树脂珠，并且其DSC曲线中都显示高温吸热峰。 至少一个部分同时满足条件（d）至（f）：（d）由具有至少1200MPa的拉伸模量的基础树脂的特定发泡聚丙烯树脂珠粒形成，（e）至 具有10-500g / L的表观密度D2和（f）具有发热量为E2J / g的这样的高温吸热峰，其中D2和E2的关系为20-0.020×D2 <= E2 < = 65 - 0.100 X D2。 可以通过将限定在模腔中的多个连续空间中的每一个中填充发泡聚丙烯树脂珠来加热发泡珠以将相应的膨胀珠熔合到一体中来制备复合模制品。 至少一个空间用特定的发泡聚丙烯树脂珠填充。

公开(公告)号：WO2002018482A3

公开(公告)日：2002-03-07

申请号：PCT/JP2001/007310

申请日：2001-08-27

Applicant: JSP CORPORATION ,  TAKAHASHI, Seiji ,  KOGURE, Naochika ,  KITAHAMA, Takashi

Inventor： TAKAHASHI, Seiji ,  KOGURE, Naochika ,  KITAHAMA, Takashi

IPC: C08J9/14

Abstract: The present invention provides thick extruded foam which is extruded polyolefin resin foam having open cells, used for cushion material and packaging material and the like, which exhibits uniform physical product properties, high expansion ratio, and uniform cell diameter.The extruded open cell foam of the present invention is an extruded foam exhibiting an open cell foaming ratio of 50% or greater, the base resin whereof is principally composed of a mixed polymer consisting of 4.5 to 75 parts by weight of component A consisting of an ethylene ionomer resin, 0.5 to 30 parts by weight of component B consisting of a polyolefin resin having a melting point exceeding 120°C, and 20 to 95 parts by weight of component C consisting of one or two or more polymers selected from a group of ethylene-propylene rubbers, styrene elastomers, and polyethylene resins having melting points of 120°C or lower (where component A + component B + component C = 100 parts by weight). Various kinds of additives such as anti-shrinking agents can be mixed in this extruded foam.

公开(公告)号：WO1996031558A1

公开(公告)日：1996-10-10

申请号：PCT/JP1996000943

申请日：1996-04-05

Applicant: JSP CORPORATION ,  TSURUGAI, Kazuo ,  TOKORO, Hisao ,  OIKAWA, Masaharu

Inventor： JSP CORPORATION

IPC: C08J09/16

CPC classification number: C08J9/16 ,  C08F110/06 ,  C08J2323/12 ,  C08L23/10 ,  C08L23/12 ,  C08F2500/12

Abstract: Conventional moldings of foamed particles of propylene polymers have been estimated to be excellent in cushioning effect and impact resilience but not necessarily satisfactory in stiffnesses such as compressional stress. The formed particles of propylene homopolymers of the invention have a modulus in tension of 15,000-25,000 kg/cm and a crystal structure which exhibits both of proper and high-temperature peaks as the endothermic peak in the DSC curve obtained by differential scanning calorimetry, the high-temperature peak having a heat quantity of 30-60 J/g. Moldings produced from the above foamed particles have a density of 0.01-0.3 g/cm and a modulus in tension of 15,000-25,000 kg/cm . The DSC curves thereof reveal that, as in the case of the foamed particles per se , the crystal structures exhibit both of the proper and high-temperature peaks and the high-temperature peak has a heat quantity of 30-60 J/g, as well.

Abstract translation: 已经估计丙烯聚合物的泡沫颗粒的常规模制品具有优异的缓冲效果和冲击弹性，但是在压缩应力等刚度方面不一定令人满意。 形成的本发明的丙烯均聚物颗粒的拉伸模量为15,000-25,000kg / cm 2，并且具有适当和高温峰的晶体结构作为通过差示扫描获得的DSC曲线中的吸热峰 量热法，热量为30-60J / g的高温峰。 由上述发泡颗粒制成的模制品的密度为0.01-0.3g / cm 3，拉伸模量为15,000-25,000kg / cm 2。 其DSC曲线显示，如本发明颗粒的情况，晶体结构表现出适当的和高温的峰值，高温峰的热量为30 -60 J / g。

公开(公告)号：WO2006028272A1

公开(公告)日：2006-03-16

申请号：PCT/JP2005/016987

申请日：2005-09-08

Applicant: JSP CORPORATION ,  SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  TOKORO, Hisao ,  SASAKI, Kazutoshi ,  SHINOHARA, Mitsuru ,  SAKAGUCHI, Masakazu ,  KURODA, Masatoshi ,  KIMURA, Koichi ,  ISHIBASHI, Yoshiyuki

Inventor： TOKORO, Hisao ,  SASAKI, Kazutoshi ,  SHINOHARA, Mitsuru ,  SAKAGUCHI, Masakazu ,  KURODA, Masatoshi ,  KIMURA, Koichi ,  ISHIBASHI, Yoshiyuki

IPC: H01Q15/08

CPC classification number: C04B38/06 ,  C04B2111/00939 ,  H01Q15/08 ,  H01Q19/062 ,  C04B14/4637 ,  C04B26/02

Abstract: A hemispherical Luneberg dielectric lens including a hemispherical center layer having a hemispherical outer surface, and a plurality of hemispherical dome-shaped layers each having concentric hemispherical inner and outer surfaces, the outer surfaces of the center layer and dome-shaped layers having different diameters and the inner surfaces of said dome-shaped layers having different diameters. The center layer and dome-shaped layers are successively concentrically fitted into one another and integrated into a hemispherical shape. The center layer is a foam molding of ceramic-containing thermoplastic resin expanded beads, while each of said dome-shaped layers is a foam molding of thermoplastic resin expanded beads containing 0 to 80 % by weight of a ceramic. The ceramic content per unit volume of the center and dome-shaped layers decreases from the center layer to the outermost dome-shaped layer, and the standard deviation of the apparent density of each of the center and dome-shaped layers is 0.07 g/cm3 or lower.

Abstract translation: 一种半球形Luneberg介质透镜，包括具有半球形外表面的半球形中心层和多个具有同心半球形内表面和外表面的半球形圆顶形层，中心层和圆顶形层的外表面具有不同的直径和 所述圆顶形的层的内表面具有不同的直径。 中心层和圆顶形的层被相继地同心地装配在一起并整合为半球形。 中心层是含有陶瓷的热塑性树脂发泡珠的发泡成型体，而每个所述圆顶形层是含有0至80重量％陶瓷的热塑性树脂发泡珠的发泡成型体。 中心层和圆顶形层的单位体积的陶瓷含量从中心层到最外面的圆顶状层减少，中心圆顶形层的表观密度的标准偏差为0.07g / cm 3 或更低。

公开(公告)号：WO1998025996A1

公开(公告)日：1998-06-18

申请号：PCT/JP1997002022

申请日：1997-06-11

Applicant: JSP CORPORATION ,  OIKAWA, Masaharu ,  TSURUGAI, Kazuo ,  TOKORO, Hisao

Inventor： JSP CORPORATION

IPC: C08J09/16

CPC classification number: C08J9/18 ,  C08J9/0066 ,  C08J2201/03 ,  C08J2323/02

Abstract: In the conventional processes for the preparation of expanded particles of a polyolefin resin, an attempt to prepare expanded particles having a high expansion ratio has encountered the problems that expanded particles having an uneven cell diameter are formed and that moldings formed from these expanded particles have poor dimensional stability and uneven surface state. The expanded particles of the invention comprises a polyolefin resin as the base resin and a metal borate (excluding alkali metal borates) incorporated in an amount of 50 to 50000 ppm into the base resin. Metal borates usable herein include zinc borate and magnesium borate. Resin particles prepared from a polyolefin resin containing a metal borate are dispersed in a dispersion medium in a hermetically sealed container, and, in addition, are impregnated with a foaming agent. After the system is held in a heated and pressurized atmosphere, the resin particles and the dispersion medium are released into an atmosphere having a lower pressure than that of the container to expand the resin particles, thereby preparing expanded particles.

Abstract translation: 在制备聚烯烃树脂的发泡颗粒的常规方法中，试图制备具有高膨胀率的发泡颗粒的尝试已经遇到了形成具有不均匀泡孔直径的发泡颗粒并且由这些发泡颗粒形成的模制品差的问题 尺寸稳定性和表面状态不均匀。 本发明的发泡颗粒包括作为基础树脂的聚烯烃树脂和以50-500ppm的量掺入到基础树脂中的金属硼酸盐（不包括碱金属硼酸盐）。 可用于本文的金属硼酸盐包括硼酸锌和硼酸镁。 将由含有金属硼酸盐的聚烯烃树脂制备的树脂颗粒分散在密封容器中的分散介质中，并且另外用发泡剂浸渍。 将系统保持在加热和加压的气氛中后，将树脂颗粒和分散介质释放到压力低于容器压力的气氛中以膨胀树脂颗粒，从而制备发泡颗粒。

公开(公告)号：WO2006028300A1

公开(公告)日：2006-03-16

申请号：PCT/JP2005/017103

申请日：2005-09-09

Applicant: JSP CORPORATION ,  SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  TOKORO, Hisao ,  SASAKI, Kazutoshi ,  SHINOHARA, Mitsuru ,  SAKAGUCHI, Masakazu ,  KURODA, Masatoshi ,  KIMURA, Koichi ,  ISHIBASHI, Yoshiyuki

Inventor： TOKORO, Hisao ,  SASAKI, Kazutoshi ,  SHINOHARA, Mitsuru ,  SAKAGUCHI, Masakazu ,  KURODA, Masatoshi ,  KIMURA, Koichi ,  ISHIBASHI, Yoshiyuki

IPC: C08J9/00

CPC classification number: C08J9/18 ,  B29C44/445 ,  B32B1/00 ,  C04B26/045 ,  C04B2103/0059 ,  C08J2323/12 ,  H01B3/441 ,  H01Q15/08 ,  C04B14/305 ,  C04B20/0048 ,  C04B24/2611

Abstract: An expanded polypropylene bead for forming a dielectric material, including a polypropylene resin containing a ceramic in an amount of from 10 to 80 wt%, having an apparent density of from 0.03 to 1.7 g/cm 3 , having an intrinsic endothermic peak specific to the polypropylene resin on a DSC curve obtained by a differential scanning calorimetry, and also an endothermic peak at a higher temperature side of the intrinsic endothermic peak, and in that a caloritic value of the endothermic peak at the higher temperature side represents from 2 to 35 % of a caloritic value of the peaks of the entire endothermic curve.

Abstract translation: 一种用于形成电介质材料的膨胀聚丙烯珠粒，其包括含有表观密度为0.03至1.7g / cm 2的表面密度为10至80重量％的陶瓷的聚丙烯树脂

公开(公告)号：WO2003037971A2

公开(公告)日：2003-05-08

申请号：PCT/JP2002/011391

申请日：2002-10-31

Applicant: JSP CORPORATION ,  SASAKI, Hidehiro ,  HIRA, Akinobu ,  HASHIMOTO, Keiichi ,  TOKORO, Hisao ,  SHINOHARA, Mitsuru ,  TOKIWA, Tomoo

Inventor： SASAKI, Hidehiro ,  HIRA, Akinobu ,  HASHIMOTO, Keiichi ,  TOKORO, Hisao ,  SHINOHARA, Mitsuru ,  TOKIWA, Tomoo

IPC: C08J9/16

CPC classification number: C08J9/224 ,  C08J9/18 ,  C08J2323/12

Abstract: A process of producing a foamed molding, wherein expanded, substantially non-crosslinked polypropylene-based resin beads are heated in a mold to fuse-bond the beads together into a unitary body. Each of the expanded beads has been surface-modified with an organic peroxide.

Abstract translation: 制造发泡模制品的方法，其中将膨胀的基本上未交联的聚丙烯基树脂珠粒在模具中加热，以将珠子熔合在一起成为整体。 每个发泡珠粒都用有机过氧化物进行表面改性。

公开(公告)号：WO1998006777A1

公开(公告)日：1998-02-19

申请号：PCT/JP1997002792

申请日：1997-08-08

Applicant: JSP CORPORATION ,  TSURUGAI, Kazuo ,  TOKORO, Hisao

Inventor： JSP CORPORATION

IPC: C08J09/04

CPC classification number: C08J9/232 ,  C08J9/228 ,  C08J2323/10 ,  C08J2323/12 ,  C08L23/12 ,  C08L2314/06 ,  Y10S526/943 ,  Y10T428/249953 ,  C08L2666/04

Abstract: A conventional shock absorbing material formed from a foamed molding of polypropylene resin particles has an excellent cushioning property and impact resilience as compared with shock absorbing materials formed of other material resins, but is not satisfactory in terms of rigidity and energy absorbing efficiency. The present invention provides a shock absorbing material formed from an in-mold formed molding manufactured by using foamed particles, of which a base material resin is a propylene homopolymer prepared with the use of a metallocene polymerization catalyst. The base material resin has a tensile elastic modulus of 15000 kgf/cm or more, and the in-mold formed molding has such a crystal structure that an intrinsic peak a and a high temperature peak b appear as endothermic peaks in the DSC curve obtained by differential scanning calorimetry of the molding. The high temperature peak b appears on a higher temperature side than the inherent peak a does, and has a heat quantity of 25 J/g or more.

Abstract translation: 由聚丙烯树脂颗粒的发泡成型体形成的传统的冲击吸收材料与由其它材料树脂形成的减震材料相比具有优异的缓冲性和冲击弹性，但在刚性和能量吸收效率方面不令人满意。 本发明提供一种由使用泡沫颗粒制成的模内成型模制成的冲击吸收材料，其中基材树脂是使用茂金属聚合催化剂制备的丙烯均聚物。 基材树脂的拉伸弹性模量为15000kgf / cm 2以上，模内成型模具具有使DSC中的固有峰a和高温峰b作为吸热峰出现的晶体结构 通过模塑的差示扫描量热法获得的曲线。 高温峰b出现在比固有峰a更高的温度侧，并且具有25J / g以上的热量。

公开(公告)号：US12240956B2

公开(公告)日：2025-03-04

申请号：US17591725

申请日：2022-02-03

Applicant: JSP CORPORATION

Inventor： Takumi Sakamura ,  Hajime Ohta

IPC: C08J9/18 ,  B29C44/34 ,  C08J9/00 ,  C08J9/12 ,  B29K23/00

Abstract: An expanded bead having a tubular shape with a through hole and a method for producing the same are provided. The expanded bead includes a foamed core layer and a covering layer. A polyolefin-based resin included in the covering layer has a melting point lower than a melting point of a polypropylene-based resin included in the foamed core layer. An average hole diameter d of the through hole of the expanded bead is less than 1 mm, and a ratio d/D of the average hole diameter d to an average outer diameter D of the expanded bead is 0.4 or less. The polypropylene-based resin for the foamed core layer has a flexural modulus of 1,200 MPa or more and a melting point of 158° C. or lower.