公开(公告)号：US10717840B2

公开(公告)日：2020-07-21

申请号：US15559148

申请日：2016-03-22

Applicant: JSP CORPORATION

Inventor： Takeshi Aoki ,  Takashi Nishimoto

IPC: C08K5/00 ,  C08J9/12 ,  B29C48/08 ,  B29C48/00 ,  B32B5/22 ,  C08J9/08 ,  C08J9/00 ,  B32B17/00 ,  C08J9/14 ,  B32B5/18 ,  B32B27/06 ,  B32B27/32 ,  B29K23/00 ,  B29K471/00 ,  B29K423/00 ,  B29C44/50 ,  B29L31/00

Abstract: Provided is a method for producing a polyethylene-based resin extruded foam sheet by extruding and foaming a foamable molten resin composition formed by kneading a mixture containing a low-density polyethylene, a physical blowing agent, and an antistatic agent, wherein the foam sheet has a thickness in a range of from 0.05 to 0.5 mm, and the antistatic agent is a polymeric antistatic agent having a melting point whose different from the melting point of the low-density polyethylene is in a range of from −10 to +10° C., and having a melt flow rate of 10 g/10 min or more. This method enables a novel polyethylene-based resin extruded foam sheet to be obtained that is of high quality such that formation of a small hole or a through-hole has been reduced or eliminated, and has both excellent strength and a shock-absorbing property despite a very small thickness even in medium- or long-term continuous production, and besides, exhibits a sufficient antistatic property, thus suitable as a glass plate interleaf sheet.

公开(公告)号：US20190276627A1

公开(公告)日：2019-09-12

申请号：US16349236

申请日：2017-11-13

Applicant: JSP Corporation

Inventor： Shota TAKAGI ,  Masaharu OIKAWA

IPC: C08J9/232 ,  C08J9/18

Abstract: The present invention relates to an in-mold expanded beads molded article of expanded beads of an olefin thermoplastic elastomer, a cushion for shoe sole, and a method of producing expanded beads provided with through-holes and composed of a block copolymer of a polyethylene block and an ethylene/α-olefin copolymer block, and with respect to the in-mold expanded beads molded article of expanded beads of an olefin thermoplastic elastomer, a voidage of the expanded beads molded article is 5 to 40%; a density of the expanded beads molded article is 30 to 150 g/L; and a flexural modulus of the olefin thermoplastic elastomer that constitutes the expanded beads molded article is 10 to 100 MPa.

公开(公告)号：US10336880B2

公开(公告)日：2019-07-02

申请号：US15542261

申请日：2015-01-09

Applicant: JSP Corporation

Inventor： Masaharu Oikawa ,  Nobumasa Koshita ,  Syouta Takagi

IPC: C08J9/16 ,  C08J9/22 ,  C08J9/228 ,  C08J9/00 ,  C08J9/12 ,  C08J9/232 ,  C08L23/16

Abstract: Provided is an expanded propylene resin bead including a core layer in a foamed state, which includes a propylene-based resin composition (a) satisfying the following (i) and (ii); and a cover layer which includes an olefin-based resin (b) satisfying the following (iii) or (iv): (i) the propylene-based resin composition (a) is a mixture of 65% by weight to 98% by weight of a propylene-based resin (a1) having a melting point of 145° C. to 165° C. and a flexural modulus of 1,200 MPa or more and 35% by weight to 2% by weight of a propylene-based resin (a2) having a melting point of 100° C. to 145° C. and a flexural modulus of 800 MPa to 1,200 MPa; (ii) a difference in a melting point between the resin (a1) and the resin (a2) is 5° C. to 25° C.; (iii) the olefin-based resin (b) is a crystalline olefin-based resin having a melting point (TmB) that is lower than a melting point (TmA) of the composition (a) and being in a relation of (0° C.

公开(公告)号：US20180162093A1

公开(公告)日：2018-06-14

申请号：US15318608

申请日：2015-07-15

Applicant: JSP Corporation

Inventor： Hidehiro SASAKI

IPC: B32B5/18 ,  B32B7/12 ,  B32B27/06 ,  C08J9/00

CPC classification number: B32B5/18 ,  B32B5/16 ,  B32B7/12 ,  B32B9/002 ,  B32B9/046 ,  B32B9/048 ,  B32B15/046 ,  B32B15/16 ,  B32B15/18 ,  B32B15/20 ,  B32B17/00 ,  B32B21/047 ,  B32B21/12 ,  B32B27/06 ,  B32B27/065 ,  B32B27/14 ,  B32B27/36 ,  B32B2250/02 ,  B32B2260/025 ,  B32B2260/046 ,  B32B2262/0223 ,  B32B2262/0276 ,  B32B2262/10 ,  B32B2262/101 ,  B32B2262/103 ,  B32B2262/105 ,  B32B2262/106 ,  B32B2262/14 ,  B32B2264/0278 ,  B32B2264/10 ,  B32B2264/101 ,  B32B2264/102 ,  B32B2264/104 ,  B32B2264/12 ,  B32B2266/0264 ,  B32B2307/102 ,  B32B2307/304 ,  B32B2307/546 ,  B32B2307/72 ,  B32B2307/732 ,  B32B2419/00 ,  B32B2457/12 ,  B32B2479/00 ,  B32B2597/00 ,  B32B2605/003 ,  B32B2605/08 ,  B32B2605/10 ,  B32B2605/12 ,  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 ρ (kg/m3) of the composite molded article satisfy Expression (1): E1/3/ρ≥0.02 [(MPa)1/3(kg/m3)−1], and a composite molded article and a laminate having more improved strength.

公开(公告)号：US20180155518A1

公开(公告)日：2018-06-07

申请号：US15578608

申请日：2016-05-25

Applicant: JSP Corporation

Inventor： Nobumasa KOSHITA ,  Koki NISHIJIMA ,  Masaharu OIKAWA

IPC: C08J9/18 ,  C08J9/228 ,  C08L75/04

CPC classification number: C08J9/18 ,  B29C44/3461 ,  B29C44/445 ,  B29K2075/00 ,  B29K2101/12 ,  B29K2105/046 ,  B29K2995/0063 ,  B29K2995/007 ,  C08J9/228 ,  C08J9/232 ,  C08J2205/052 ,  C08J2300/22 ,  C08J2375/04 ,  C08L75/04

Abstract: Provided are expanded beads capable of providing an expanded thermoplastic polyurethane beads molded article which is excellent in physical properties, such as compression characteristics, repulsion elasticity, etc., and an expanded thermoplastic polyurethane beads molded article. Expanded beads of thermoplastic polyurethane, wherein a Shore A hardness of the thermoplastic polyurethane is 85 or more; an average cell diameter of the expanded beads is 50 to 300 μm; and a closed cell ratio when bisecting the expanded thermoplastic polyurethane bead is 60% or more; and an expanded thermoplastic polyurethane beads molded article obtained through in-mold molding of the same are disclosed.

公开(公告)号：US09937838B2

公开(公告)日：2018-04-10

申请号：US14899385

申请日：2014-06-17

Applicant: TOYO SEAT CO., LTD. ,  JSP Corporation

Inventor： Hiroyuki Ito ,  Seishiro Murata ,  Satoru Shioya ,  Takashi Imai

IPC: A47C21/00 ,  B60N2/70 ,  A47C27/14 ,  A47G9/10 ,  A47C7/02 ,  B60N2/64 ,  A47C7/18

CPC classification number: B60N2/7094 ,  A47C7/021 ,  A47C7/18 ,  A47C27/14 ,  A47G9/10 ,  A47G2009/1018 ,  B60N2/643 ,  B60N2/646

Abstract: The present invention solves the problem of realizing a lighter cushion body that has ample cushioning properties when a person sits or lies thereon by: providing a plurality of rod-shaped or flat plate-shaped support bodies (2) comprising a synthetic resin foam that has a bending deflection amount of 20 mm or more as measured according to the method described in JIS K7221-2:2006 and a pressing force of 2-100 N at 20 mm of deflection, and legs (3) on which the support bodies (2) are placed or fixed; using the support bodies and the legs to form a space (5) that makes it possible to bend and deform the support bodies; and arranging the plurality of rod-shaped or flat plate-shaped support bodies (2) in a row so as to be deformable.

公开(公告)号：US20180079328A1

公开(公告)日：2018-03-22

申请号：US15558498

申请日：2016-03-04

Applicant: JSP Corporation

Inventor： Motoaki UEGURI ,  Atsuo TAKAYAMA ,  Keiichi HASHIMOTO

IPC: B60N2/24 ,  A47C7/18 ,  B60N2/64

CPC classification number: B60N2/24 ,  A47C7/18 ,  A47C7/185 ,  B29C33/42 ,  B60N2/64 ,  B60N2/68 ,  B60N2/70 ,  B60N2/7035 ,  B60N2/707 ,  B60N2/90 ,  B60N2/995 ,  B60N2205/20 ,  B60N2205/30

Abstract: A seat core member of a seat portion provided with the seat core member made of a hard synthetic resin foam and a cushion layer made of a soft synthetic resin foam and covering the seat core member is provided, and the seat core member includes a plurality of ridges extending in a rising direction of the seat core member in a rising portion of the seat core member being in contact with the cushion layer and opposing to calves of a body is formed.

公开(公告)号：US20170009038A1

公开(公告)日：2017-01-12

申请号：US14914598

申请日：2015-03-20

Applicant: JSP Corporation

Inventor： Mitsuru Shinohara ,  Masaharu Oikawa

IPC: C08J9/18 ,  C08J9/00

CPC classification number: C08J9/18 ,  C08J9/0061 ,  C08J9/122 ,  C08J9/16 ,  C08J9/232 ,  C08J2203/06 ,  C08J2205/052 ,  C08J2323/14 ,  C08J2323/16 ,  C08J2400/16 ,  C08J2409/06 ,  C08J2423/14 ,  C08J2423/16 ,  C08J2453/02 ,  C08J2467/00 ,  C08J2467/04

Abstract: The present invention relates to polyolefin resin expanded beads containing multi-layer expanded beads containing a core layer in a foamed state containing a polyolefin resin and a cover layer coated on the core layer, the cover layer containing a mixed resin of a polyolefin resin (A) and at least one resin (B) selected from a polystyrene resin and a polyester resin, and the mixed resin having a weight ratio (A/B) of the polyolefin resin (A) and the resin (B) of from 15/85 to 90/10, and a composite laminated body using an expanded beads molded body thereof, and the expanded beads molded body is excellent in solvent resistance and also excellent in adhesiveness to a thermosetting resin on the surface of the molded body, and can provide a composite laminated body excellent in productivity with a thermosetting resin.

Abstract translation: 本发明涉及含有多层发泡珠粒的聚烯烃树脂发泡珠，该多层发泡珠含有包含聚烯烃树脂的发泡状态的核心层和涂覆在芯层上的覆盖层，该覆盖层含有聚烯烃树脂（A ）和至少一种选自聚苯乙烯树脂和聚酯树脂的树脂（B），聚烯烃树脂（A）和树脂（B）的重量比（A / B）为15/85 90/10以及使用其发泡珠粒成型体的复合层压体，发泡珠成型体的耐溶剂性优异，且与成型体的表面的热固性树脂的粘合性优异，可以提供 复合层叠体，其热固性树脂的生产率优异。

公开(公告)号：US20160333162A1

公开(公告)日：2016-11-17

申请号：US15111150

申请日：2015-01-13

Applicant: JSP CORPORATION

Inventor： Hidehiro SASAKI

IPC: C08J9/18

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 (T1) 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 (T2) 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细孔结构的发泡聚烯烃树脂珠粒的聚烯烃树脂颗粒，在高温环境下具有较小体积收缩率的膨胀聚烯烃树脂珠粒，并且在重复压缩时的回收性能优异的方法 用于生产发泡珠。 本发明的聚烯烃树脂颗粒在通过以10℃的加热速度将树脂颗粒从20℃加热到200℃而获得的DSC曲线中，在第一次加热时具有熔融峰的峰值温度（T1） 。/ min，高于1.5℃或高于DSC曲线中的第二次加热时的熔融峰的峰值温度（T2），通过在第一次加热之后，将树脂颗粒从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℃。 本发明的发泡聚烯烃树脂珠粒的制造方法包括：制备含有聚烯烃树脂的预备树脂粒子的工序; 在比预备树脂颗粒的熔点高15至25℃的温度下对预备树脂颗粒进行热处理以生产树脂颗粒的步骤; 和使树脂粒子膨胀的工序。

公开(公告)号：US20160032070A1

公开(公告)日：2016-02-04

申请号：US14881800

申请日：2015-10-13

Applicant: JSP CORPORATION

Inventor： Mitsuru SHINOHARA ,  Masaharu OIKAWA

IPC: C08J9/12

CPC classification number: C08J9/12 ,  C08G63/08 ,  C08J9/122 ,  C08J9/18 ,  C08J9/232 ,  C08J2300/16 ,  C08J2333/02 ,  C08J2367/04

Abstract: Polylactic acid-based resin expanded beads obtained by releasing a softened, pressurized foamable resin composition, which has a polylactic acid-based resin and a physical blowing agent, to a low pressure atmosphere to foam and expand the resin composition, where the polylactic acid-based resin satisfies the conditions (1) to (3) shown below, and exhibits excellent secondary expansion properties and fusion bonding properties. A polylactic acid-based resin expanded beads molded article obtained by in-mold molding of the polylactic acid-based resin expanded beads exhibits excellent mechanical properties. MT≦30 mN  (1) log MT≦0.93 log η−1.75  (2) CT1/2≧600 sec  (3) where MT represents a melt tension [mN] at 190° C., η represents a melt viscosity [Pa·s] at 190° C. and a shear speed of 20 sec−1, and CT1/2 represents a half crystallization time [sec] at 110° C.

Abstract translation: 通过将具有聚乳酸类树脂和物理发泡剂的软化的加压发泡树脂组合物释放到低压气氛中以使树脂组合物发泡和膨胀而获得的聚乳酸类树脂发泡珠粒，其中聚乳酸 - 基于树脂的树脂满足下述条件（1）至（3），并且显示出优异的二次膨胀性和熔融粘合性。 通过聚乳酸类树脂发泡粒子的模内成型得到的聚乳酸类树脂发泡粒子成型体的机械特性优异。 MT＆nlE; 30mN（1）log MT＆nlE; 0.93log＆eegr; -1.75（2）CT1 /2≥600秒（3）其中MT表示在190℃下的熔体张力[mN] 表示190℃下的熔融粘度[Pa·s]，剪切速度为20秒-1，CT1 / 2表示110℃下的半结晶时间[秒]。