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：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：US09259874B2

公开(公告)日：2016-02-16

申请号：US13571718

申请日：2012-08-10

Applicant: Tomoo Tokiwa ,  Masahiro Gomibuchi

Inventor： Tomoo Tokiwa ,  Masahiro Gomibuchi

IPC: B29C49/04 ,  B29C49/00 ,  B29K69/00 ,  B29K105/04

CPC classification number: B29C49/04 ,  B29C49/0005 ,  B29K2069/00 ,  B29K2105/04

Abstract: A process for producing a foamed blow-molded article, including melting and mixing a branched polycarbonate resin having a specific polystyrene equivalent weight average molecular weight, a specific weight average absolute molecular weight and a relatively high terminal hydroxyl group content, a linear polycarbonate resin having specific polystyrene equivalent weight average molecular weight, a specific weight average absolute molecular weight and a relatively low terminal hydroxyl group content and a branching agent to obtain a polycarbonate resin “A”, mixing the polycarbonate resin “A” with a blowing agent to obtain a foamable molten resin composition, extruding the foamable molten resin composition to obtain a foamed parison, and blow-molding the foamed parison.

Abstract translation: 一种生产发泡吹塑制品的方法，包括熔融和混合具有特定聚苯乙烯换算重均分子量，比重重量平均绝对分子量和相对高的末端羟基含量的支链聚碳酸酯树脂，具有 特定的聚苯乙烯换算的重均分子量，比重的平均绝对分子量和相对低的末端羟基含量和支化剂，得到聚碳酸酯树脂“A”，将聚碳酸酯树脂“A”与发泡剂混合，得到 可发泡熔融树脂组合物，挤出可发泡熔融树脂组合物以获得发泡型坯，并吹塑发泡型坯。

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]。

公开(公告)号：US09217067B2

公开(公告)日：2015-12-22

申请号：US13636743

申请日：2011-02-10

Applicant: Tomoo Tokiwa ,  Masahiro Gomibuchi

Inventor： Tomoo Tokiwa ,  Masahiro Gomibuchi

IPC: B29C44/34 ,  C08J9/14 ,  B29C49/00 ,  C08L23/10 ,  B29C49/04 ,  B29C49/22 ,  B29K23/00 ,  B29K105/04 ,  C08K3/34

CPC classification number: C08J9/14 ,  B29C49/0005 ,  B29C49/04 ,  B29C49/22 ,  B29C2791/006 ,  B29C2791/007 ,  B29K2023/10 ,  B29K2105/04 ,  C08J2323/12 ,  C08K3/34 ,  C08L23/10 ,  C08L2205/02 ,  C08L2666/06

Abstract: Provided is a method that can improve formability and blow moldability of a foamed parison as compared with conventional production method and can produce a polypropylene-based resin foamed blow-molded article having excellent uniformity of wall thickness over a wide range of its density. The method comprises kneading a polypropylene-based resin with a physical foaming agent, extruding the thus obtained foamable molten resin through a die to obtain a foamed parison in a softened state, placing the foamed parison between molds and then blow-molding the foamed parison and is characterized in that the polypropylene-based resin comprises a polypropylene-based resin (A) satisfying specific requirements (1) to (3) and a polypropylene-based resin (B) satisfying a specific requirement (4), when the polypropylene-based resins (A) and (B) are each subjected to dynamic viscoelasticity measurement in which an oscillation strain is applied thereto at a temperature of 190° C., and that the mixing ratio by weight (A:B) of the resin (A) to the resin (B) is in the range of 100:0.5 to 100:5.

Abstract translation: 本发明提供一种能够提高发泡型坯的成形性和吹塑成形性的方法，与现有的制造方法相比，可以制造在其密度范围宽的壁厚均匀性优异的聚丙烯系树脂发泡吹塑成形品。 该方法包括将聚丙烯基树脂与物理发泡剂捏合，将由此获得的可发泡熔融树脂通过模具挤出以获得处于软化状态的发泡型坯，将发泡型坯放置在模具之间，然后吹塑成型发泡型坯， 其特征在于，聚丙烯类树脂包含满足特定要求（1）〜（3）的聚丙烯类树脂（A）和满足特定要求（4）的聚丙烯类树脂（B），当聚丙烯系树脂 树脂（A）和（B）各自经受在190℃的温度下施加振动应变的动态粘弹性测量，并且树脂（A）的混合比例（A:B） 与树脂（B）的摩尔比在100:0.5至100:5的范围内。

公开(公告)号：US09206296B2

公开(公告)日：2015-12-08

申请号：US13696856

申请日：2011-03-24

Applicant: Mitsuru Shinohara ,  Masaharu Oikawa

Inventor： Mitsuru Shinohara ,  Masaharu Oikawa

IPC: C08G63/08 ,  C08L67/04 ,  B32B27/14 ,  C08J9/12 ,  C08J9/18 ,  C08J9/232 ,  C08J9/16

CPC classification number: C08J9/122 ,  C08J9/16 ,  C08J9/18 ,  C08J9/232 ,  C08J2205/052 ,  C08J2367/02 ,  Y10T428/2989

Abstract: An expanded bead of a polylactic acid resin, having an exterior surface, a surface region including the entire exterior surface and having a weight of one-sixth to one-fourth the weight of the expanded bead, and a center region located inside the surface region and having a weight of one-fifth to one-third the weight of the expanded bead, wherein the expanded bead, the surface region and the center region, after having been subjected to a pretreatment including a heat treatment at 110° C. for 120 minutes followed by cooling at a cooling speed of 2° C./min, have endothermic calorific values of (Br:endo), (Brs:endo) and (Brc:endo), respectively, when measured by heat flux differential scanning calorimetry at a heating speed of 2° C./min in accordance with JIS K7122 (1987), and wherein (Br:endo) is greater than 25 J/g and (Brs:endo) is smaller than (Brc:endo) and is not smaller than 0 J/g.

Abstract translation: 具有外表面的聚乳酸树脂的膨胀珠粒，包括整个外表面的表面积，其重量是发泡珠粒重量的六分之一至四分之一，以及位于表面区域内的中心区域 并且具有发泡珠重量的五分之一至三分之一的重量，其中经过包括在110℃热处理的预处理后的发泡珠粒，表面区域和中心区域为120 分钟，然后以2℃/分钟的冷却速度冷却，当通过热通量差示扫描量热法测定时，分别具有（Br：endo），（Brs：endo）和（Brc：endo）的吸热热值 根据JIS K7122（1987）的加热速度为2℃/分钟，其中（Br：endo）大于25J / g，（Brs：endo）小于（Brc：endo），并且不是 小于0J / g。

公开(公告)号：US09193099B2

公开(公告)日：2015-11-24

申请号：US13839114

申请日：2013-03-15

Applicant: JSP CORPORATION

Inventor： Masahiro Gomibuchi ,  Tomoo Tokiwa

IPC: B29C49/00 ,  B29C44/16 ,  C08J5/00 ,  B29C44/18 ,  B32B3/04 ,  B32B5/18 ,  B29C44/00 ,  B29C67/00 ,  B29C67/20 ,  B29C44/44 ,  B29K105/04

CPC classification number: B29C44/18 ,  B29C44/12 ,  B29C44/3492 ,  B29C44/445 ,  B29C67/0037 ,  B29C67/205 ,  B29K2025/06 ,  B29K2105/04 ,  B29K2995/0088 ,  B29K2995/0089 ,  B29L2009/00 ,  B32B3/04 ,  B32B5/18 ,  B32B5/20 ,  B32B2266/0214 ,  B32B2307/558 ,  C08J9/0061 ,  C08J9/228 ,  C08J2325/06 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2207/20 ,  Y10T428/233 ,  C08L25/06

Abstract: A method for producing a skin-covered foamed molded article includes blow molding a parison into a skin and heating expanded polystyrene beads filled in a hollow space of the skin to form a foam layer fuse-bonded to the skin, polystyrene resin composition having specific Charpy impact strength, MFR and branching degree. The skin of the skin-covered foamed molded article is formed of the specific polystyrene resin composition.

Abstract translation: 一种皮肤覆盖的发泡成型体的制造方法包括将型坯吹塑成皮肤，加热填充在皮肤的中空空间中的发泡聚苯乙烯珠，以形成与皮肤熔合的泡沫层，具有特定的夏比的聚苯乙烯树脂组合物 冲击强度，MFR和支化度。 皮肤覆盖的发泡成型体的皮肤由特定的聚苯乙烯树脂组合物形成。