公开(公告)号：WO0224794A9

公开(公告)日：2002-05-10

申请号：PCT/JP0108187

申请日：2001-09-20

Applicant: JSP CORP ,  SASAKI HIDEHIRO ,  HIRA AKINOBU ,  HASHIMOTO KEIICHI ,  TOKORO HISAO

Inventor： SASAKI HIDEHIRO ,  HIRA AKINOBU ,  HASHIMOTO KEIICHI ,  TOKORO HISAO

IPC: C08J9/224 ,  C08L23/10 ,  C08J9/18

CPC classification number: C08J9/224 ,  C08J2323/10 ,  C08L23/10 ,  C08L2203/14

Abstract: Expanded, substantially non-crosslinked polypropylene resin beads capable of producing a high rididity foamed molding at a relatively low temperature. The beads are produced by a process including a step of dispersing substantially non-crosslinked polypropylene resin particles in a dispersing medium containing an organic peroxide to obtain a dispersion, a step of heating the dispersion to decompose the organic peroxide and to modify the surface of the surface-modified polypropylene resin particles, and a step of expanding the non-crosslinked, surface-modified polypropylene resin particles using a blowing agent.

Abstract translation: 膨胀的基本上非交联的聚丙烯树脂珠粒能够在相对较低的温度下产生高吸收性发泡模制品。 通过包括以下步骤的方法生产珠粒：将基本上未交联的聚丙烯树脂颗粒分散在含有机过氧化物的分散介质中以获得分散体，加热分散体以分解有机过氧化物和改性 表面改性聚丙烯树脂颗粒，以及使用发泡剂使未交联的表面改性聚丙烯树脂颗粒发泡的步骤。

公开(公告)号：WO03037971A3

公开(公告)日：2003-09-04

申请号：PCT/JP0211391

申请日：2002-10-31

Applicant: JSP CORP ,  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: C08J9/18 ,  C08J9/224 ,  C08J9/16 ,  C08J9/24

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：WO0224794A3

公开(公告)日：2002-12-05

申请号：PCT/JP0108187

申请日：2001-09-20

Applicant: JSP CORP ,  SASAKI HIDEHIRO ,  HIRA AKINOBU ,  HASHIMOTO KEIICHI ,  TOKORO HISAO

Inventor： SASAKI HIDEHIRO ,  HIRA AKINOBU ,  HASHIMOTO KEIICHI ,  TOKORO HISAO

IPC: C08J9/224 ,  C08L23/10 ,  C08J9/18

CPC classification number: C08J9/224 ,  C08J2323/10 ,  C08L23/10 ,  C08L2203/14

Abstract: Expanded, substantially non-crosslinked polypropylene resin beads capable of producing a high rididity foamed molding at a relatively low temperature. The beads are produced by a process including a step of dispersing substantially non-crosslinked polypropylene resin particles in a dispersing medium containing an organic peroxide to obtain a dispersion, a step of heating the dispersion to decompose the organic peroxide and to modify the surface of the surface-modified polypropylene resin particles, and a step of expanding the non-crosslinked, surface-modified polypropylene resin particles using a blowing agent.

Abstract translation: 膨胀的，基本上非交联的聚丙烯树脂珠，其能够在相对较低的温度下产生高的吸附发泡成型。 珠粒通过包括将基本上未交联的聚丙烯树脂颗粒分散在含有机过氧化物的分散介质中以获得分散体的步骤的方法制备，加热分散体以分解有机过氧化物并改性表面的步骤 表面改性聚丙烯树脂颗粒，以及使用发泡剂使未交联的表面改性聚丙烯树脂颗粒膨胀的步骤。

公开(公告)号：EP3095812A4

公开(公告)日：2017-07-12

申请号：EP15737609

申请日：2015-01-13

Applicant: JSP CORP

Inventor： SASAKI HIDEHIRO

IPC: C08J9/18 ,  C08L23/14

CPC classification number: C08J9/18 ,  C08J9/122 ,  C08J2203/06 ,  C08J2205/044 ,  C08J2205/052 ,  C08J2207/00 ,  C08J2323/14

Abstract: The present invention provides polyolefin resin particles that are capable of producing expanded polyolefin resin beads having a favorable fine cell structure, expanded polyolefin resin beads that suffer less volume shrinkage under a high temperature environment and are excellent in recovery property on repeated compression, and a method for producing the expanded beads. The polyolefin resin particles of the present invention have a peak temperature (T 1 ) of a melting peak on first heating in a DSC curve obtained by heating the resin particles from 20°C to 200°C at a heating rate of 10°C/min that is higher by 1.5°C or more than a peak temperature (T 2 ) of a melting peak on second heating in a DSC curve obtained by, subsequent to the first heating, cooling the resin particles from 200°C to 20°C at a cooling rate of 10°C/min, and then heating the resin particles from 20°C to 200°C at a heating rate of 10°C/min. The method for producing expanded polyolefin resin beads of the present invention includes: a step of preparing preliminary resin particles containing a polyolefin resin; a step of heat-treating the preliminary resin particles at a temperature that is higher by from 15 to 25°C than a melting point of the preliminary resin particles, so as to produce resin particles; and a step of expanding the resin particles.

Abstract translation: 本发明提供能够制造具有良好的细孔结构的发泡聚烯烃系树脂粒子的聚烯烃系树脂粒子，在高温环境下的体积收缩小且反复压缩的回收性优异的聚烯烃系树脂发泡粒子， 用于生产发泡珠粒。 本发明的聚烯烃系树脂粒子在将树脂粒子以10℃/分钟的升温速度从20℃加热到200℃而得到的DSC曲线中，第一次加热时的熔融峰的峰值温度（T 1） min，比第一次加热后的DSC曲线中的第二次加热时的熔融峰的峰值温度（T 2）高1.5℃以上，将树脂粒子从200℃冷却至20℃ 以10℃/分钟的冷却速度，然后以10℃/分钟的加热速率将树脂颗粒从20℃加热至200℃。 本发明的聚烯烃系树脂发泡粒子的制造方法包括：准备含有聚烯烃系树脂的预备树脂粒子的工序; 在比所述预备树脂粒子的熔点高15〜25℃的温度下对所述预备树脂粒子进行热处理而制造树脂粒子的工序; 和使树脂颗粒膨胀的步骤。

公开(公告)号：EP2796316A4

公开(公告)日：2015-05-27

申请号：EP12858799

申请日：2012-12-20

Applicant: TOYO SEAT CO LTD ,  JSP CORP

Inventor： ITO HIROYUKI ,  IMAI TAKASHI ,  SASAKI HIDEHIRO ,  MURATA SEISHIRO ,  SHIOYA SATORU

IPC: B60N2/64 ,  A47C7/40

CPC classification number: B60N2/64 ,  B60N2/643 ,  B60N2/68 ,  B60N2/686 ,  B60N2/7094

Abstract: The present invention relates to a vehicle seat back which comprises a seat back pad. An opening portion is disposed at a front portion of the seat back pad where a backrest surface is formed for a seated person. A plurality of independent rod-like or plate-like supports, which are formed of a synthetic resin foam having a bending deflection measured according to a method described in JIS K7221-2:2006 of at least 20 mm and having a load at a 20 mm deflection of between 2 N and 100 N, are fixed to a seat frame or a circumferential edge portion of the opening portion, or integrally molded with the circumferential edge portion of the opening portion, in a bridging direction between opposing edge portions forming the opening portion and in the form of a single-point support or multi-point support. The seat pad is a structure which has a shape in which the plurality of supports are arrayed at predetermined intervals. The vehicle seat back of the present invention comprises a void portion which enables bending deformation of the support toward a rear portion of the support, and therefore weight can be reduced, and cushioning properties, fit, and recyclability can be improved.

公开(公告)号：EP3170858A4

公开(公告)日：2017-07-05

申请号：EP15822428

申请日：2015-07-15

Applicant: JSP CORP

Inventor： SASAKI HIDEHIRO

IPC: C08J9/236 ,  B32B5/00 ,  C08K7/02 ,  C08L63/00 ,  C08L67/04 ,  C08L67/06

CPC classification number: B32B5/18 ,  C08J9/0061 ,  C08J9/0085 ,  C08J9/236 ,  C08J9/35 ,  C08J2300/12 ,  C08J2367/04 ,  C08J2463/00 ,  C08J2467/06

Abstract: The present invention provides a composite molded article in which aliphatic polyester-based resin expanded beads and a thermosetting resin cured product containing a reinforcing fiber, which is formed between the expanded beads, are integrally fixed, wherein the aliphatic polyester-based resin is a polylactic acid-based resin, and a flexural modulus E (MPa) of the composite molded article and a density Á (kg/m 3 ) of the composite molded article satisfy Expression (1): E 1/3 /Á ‰¥ 0.02 [(MPa) 1/3 (kg/m 3 ) -1 ], and a composite molded article and a laminate having more improved strength.

Abstract translation: 本发明提供一种复合模制品，其中脂肪族聚酯类树脂发泡珠粒和在发泡珠粒之间形成的含有增强纤维的热固性树脂固化产物被整体地固定，其中脂肪族聚酯类树脂是聚乳酸 所述复合成形体的弯曲弹性模量E（MPa）与所述复合成形体的密度ρ（kg / m 3）满足式（1）：E 1/3 /‰0.02 [（ MPa）1/3（kg / m 3）-1]，复合成形体和强度更高的层压体。

公开(公告)号：EP1036814A4

公开(公告)日：2001-07-18

申请号：EP98956020

申请日：1998-12-01

Applicant: JSP CORP

Inventor： SASAKI HIDEHIRO ,  SAKAGUCHI MASAKAZU ,  AKIYAMA MITSUHIRO ,  TOKORO HISAO

IPC: C08J9/16 ,  C08J9/18 ,  C08L23/10

CPC classification number: C08J9/18 ,  C08J9/16 ,  C08J2203/06 ,  C08J2323/12

Abstract: Expandable beads comprising as the base resin a propylene random copolymer prepared by copolymerizing propylene with one or more comonomers selected from the group consisting of ethylene and α-olefins having 4 or more carbon atoms in the presence of a metallocene polymerization catalyst, wherein the propylene random copolymer is an isotactic one having a melting point exceeding 140 °C and a melt flow rate of 12 g/10 min or below. For example, propylene/ethylene random copolymers are suitably usable as the base resin. Products of in-mold expansion are produced by packing the expandable beads in a mold and expanding the beads by steam heating to fuse the beads with each other into a cavity-shaped product.

公开(公告)号：EP2151470A4

公开(公告)日：2012-02-22

申请号：EP08751851

申请日：2008-04-16

Applicant: JSP CORP

Inventor： SASAKI HIDEHIRO ,  NAKAMURA YASUNORI

IPC: C08J9/18 ,  C08J9/16 ,  C08J9/232

CPC classification number: C08J9/16 ,  C08J9/232 ,  C08J2323/14

公开(公告)号：EP2161298A4

公开(公告)日：2011-08-10

申请号：EP08752701

申请日：2008-05-14

Applicant: JSP CORP

Inventor： SASAKI HIDEHIRO ,  OIKAWA MASAHARU ,  NOHARA TOKUNOBU

IPC: C08J9/18 ,  C08F10/06 ,  C08J9/232

CPC classification number: C08J9/122 ,  C08F110/06 ,  C08F210/06 ,  C08J9/0061 ,  C08J9/18 ,  C08J9/232 ,  C08J2323/12 ,  C08J2423/00 ,  C08F2500/18 ,  C08F2500/21 ,  C08F210/16

公开(公告)号：EP1403305A4

公开(公告)日：2004-12-15

申请号：EP02736043

申请日：2002-06-10

Applicant: JSP CORP

Inventor： SASAKI HIDEHIRO ,  OGIYAMA KAZUYA ,  HIRA AKINOBU ,  HASHIMOTO KEIICHI ,  YANAGISAWA HIROKI ,  TOKORO HISAO

IPC: B29C44/44 ,  C08J9/18

CPC classification number: C08J9/18 ,  B29C44/445 ,  C08J2203/06 ,  C08J2323/12

Abstract: A method for producing polypropylene type resin foamed particles wherein polypropylene type resin particles impregnated with a physical foaming agent and heated together with an aqueous medium and a dispersing agent are released out of a closed vessel to a low pressure region, to produce foamed particles, characterized in that the aqueous medium has an electric conductivity of 0.00 mS/m to 20.00 mS/m. The method can be used for producing good polyolefin resin foamed particles free from the mutual adhesion during its production with almost same amounts, independent of locations of plants for production, of a dispersing agent added for preventing the adhesion of particles in a heat treatment process for impregnating resin particles dispersed in an aqueous medium in a closed vessel with a foaming agent, and of the dispersing agent attached to the resultant foamed articles. The above polyolefin resin foamed particles exhibit good melting and mutual adhesion in a step of forming them and can provide a formed article having excellent mechanical strength, and further can be produced with stability.