公开(公告)号：US20190100637A1

公开(公告)日：2019-04-04

申请号：US16086472

申请日：2016-07-07

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Yugo KATAYAMA ,  Haruhiko MATSUURA

IPC: C08J7/16 ,  C08J7/14 ,  C08J9/28 ,  C08F20/32 ,  C08F20/28 ,  C08F2/28 ,  C08G63/695 ,  C08G73/02 ,  C09D7/40 ,  C09D7/65

Abstract: Hollow particles each having a shell composed of at least one layer, wherein the at least one layer contains a nitrogen atom-containing resin having a refractive index of 1.57 or less.

公开(公告)号：US20190070755A1

公开(公告)日：2019-03-07

申请号：US16080118

申请日：2017-01-23

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Takamasa YAMAGISHI ,  Takahito KUROSAKI

IPC: B29C33/38 ,  B29C44/44 ,  B60R13/08

Abstract: Provided are a molded foam (1) that is lightweight and can be manufactured at low cost, and can reduce abnormal noise due to friction with a vehicle structure effectively and for a long time, and a mold (10) that can mold a molded foam that is beautiful and attractive in appearance.

公开(公告)号：US20190047453A1

公开(公告)日：2019-02-14

申请号：US16076582

申请日：2017-01-26

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Yushi SAKAKIBARA

IPC: B60N2/70 ,  A47C27/15 ,  A47C27/14 ,  A47C27/16

CPC classification number: B60N2/7017 ,  A47C7/20 ,  A47C27/148 ,  A47C27/15 ,  A47C27/16 ,  B29C44/1271 ,  B29C44/128 ,  B29C44/445 ,  B29K2023/06 ,  B29K2023/10 ,  B29K2025/04 ,  B29K2105/04 ,  B29L2031/58 ,  B29L2031/771 ,  B60N2/90

Abstract: A method for producing a vehicle seat member (30) in which a frame member (20) having protrusions (23, 25) is integrally molded to a foamed resin molded body (10) with high dimensional accuracy is provided. The method comprises an in-mold foam molding step of placing the frame member (20) in a mold (100), packing prefoamed resin particles, and molding the foamed resin molded body (10) by in-mold foam molding; and a demolding step of removing the mold (100) to obtain the vehicle seat member (30), wherein in the in-mold foam molding step, the foamed resin molded body (10) is molded so that (B−A)/B is 13/1000 or less, wherein A is an outer dimension of the foamed resin molded body (10) in the vehicle seat member (30) obtained by the demolding step and B is an inner dimension of the mold (100) corresponding to the outer dimension.

公开(公告)号：US10088609B2

公开(公告)日：2018-10-02

申请号：US15023821

申请日：2014-09-24

Applicant: Sekisui Plastics Co., Ltd.

Inventor： Fumitaka Ishimori ,  Kazuki Machida

IPC: F21V1/00 ,  G02B5/02 ,  F21V3/06 ,  F21K9/232 ,  F21K9/27 ,  F21Y101/00 ,  F21K9/69

Abstract: There is provided a light diffuser which can alleviate glare of light emitted from a light source while preventing a decrease in brightness of the emitted light despite the presence of the light diffuser. The light diffuser, contains a thermoplastic resin and transparent particles added thereto. The light diffuser has a total light transmittance in a range of 50 to 85%, and a wavelength selectivity in a rectilinear light ratio in a range of 1.5 to 5.0, as obtained by following formulas (1)-(3): (wavelength selectivity in rectilinear light ratio)=(rectilinear light ratio of 550-nm light)/(rectilinear light ratio of 450-nm light)  (1) (rectilinear light ratio of 550-nm light)=(rectilinear light transmittance for 550-nm light)/(total transmittance for 550-nm light)  (2) (rectilinear light ratio of 450-nm light)=(rectilinear light transmittance for 450-nm light)/(total transmittance for 450-nm light)  (3).

公开(公告)号：US10066072B2

公开(公告)日：2018-09-04

申请号：US15512222

申请日：2015-08-31

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Hiroki Owaki

IPC: B60R13/02 ,  C08F255/02 ,  C08J9/00 ,  C08J9/14 ,  C08J9/18 ,  C08J9/228 ,  C08L23/06 ,  C08L23/08 ,  C08L25/06

Abstract: Composite resin particles comprising 50 to 800 parts by mass of a polystyrene-based resin with respect to 100 parts by mass of a polyolefin-based resin, wherein: when transmission electron microscope (TEM) images obtained by photographing cross-sections of the composite resin particles using a TEM at a magnification of 1,000 are subjected to a binarization processing and areas in the obtained binarized images which correspond to a cross-sectional area of 437.584 μm2 of the composite resin particles are subjected to image analysis, the polystyrene-based resin satisfies the following requirements: (1) the number of dispersed particles is 180 or more; (2) the maximum of the areas of dispersed particles is 200 μm2 or less; and (3) the coefficient of variation in dispersion is 100% or more, and the composite resin particles exhibit an inner morphology that includes a mixture of sea-island structure regions and co-continuous structure regions.

公开(公告)号：US10064500B2

公开(公告)日：2018-09-04

申请号：US15515331

申请日：2015-09-30

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Takanori Furui ,  Nobuhiko Kushima ,  Yuichiro Soda

IPC: A47F1/04 ,  A47F5/00 ,  A47F7/00 ,  A47F1/12 ,  B65G1/02 ,  B65G1/08 ,  B65G13/11

Abstract: An article moving device includes a plurality of roller members, a base member which has a bottom plate section and a peripheral wall section and accommodates the plurality of roller members, and a plate-shaped cover member which is detachably attached to the peripheral wall section so as to cover an opening section surrounded by the peripheral wall section, wherein the base member is formed of a material having a flexural modulus of 2500 MPa to 4000 MPa, a first parameter of 7.00 to 18.00, as calculated by the formula: flexural modulus (MPa)×yield stress in tension (MPa)×thickness (mm)/density (g/cm3)/100000, and a second parameter of 2.00 to 10.00, as calculated by the formula: first parameter×nominal tensile strain at break (%)/100.

公开(公告)号：US09902828B2

公开(公告)日：2018-02-27

申请号：US15111969

申请日：2015-03-05

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Hiroki Oowaki ,  Yuichi Gondoh

IPC: C08J9/18 ,  C08J9/00 ,  C08J9/14 ,  C08J9/232 ,  C08F255/02 ,  C08F285/00 ,  C08L23/06 ,  C08L25/06

CPC classification number: C08J9/18 ,  C08F255/02 ,  C08F285/00 ,  C08J9/0014 ,  C08J9/0019 ,  C08J9/0023 ,  C08J9/0028 ,  C08J9/0061 ,  C08J9/141 ,  C08J9/232 ,  C08J2203/14 ,  C08J2205/052 ,  C08J2325/06 ,  C08J2423/06 ,  C08J2423/08 ,  C08J2431/02 ,  C08J2431/04 ,  C08J2433/04 ,  C08J2433/08 ,  C08L23/06 ,  C08L25/06 ,  C08L23/0853 ,  C08F212/08

Abstract: High-density polyethylene mixed resin particles used as seed particles during seed polymerization, wherein said seed particles contain a mixed resin of 100 parts by weight of high-density polyethylene and 20 to 100 parts by weight of an ethylene copolymer; said high-density polyethylene has a density of 935 to 960 kg/m3 and a softening temperature of 115 to 130° C.; said ethylene copolymer is a copolymer of an ester-based monomer selected from an acrylic acid alkyl ester and an aliphatic saturated monocarboxylic acid vinyl, and etylene, contains 1 to 20% by weight of an ester-based monomer-derived component, and has a softening temperature of 75 to 110° C.; said acrylic acid alkyl ester is selected from methyl acrylate and ethyl acrylate; and said aliphatic saturated monocarboxylic acid vinyl is selected from vinyl acetate and vinyl propionate.

公开(公告)号：US20170327661A1

公开(公告)日：2017-11-16

申请号：US15617823

申请日：2017-06-08

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Hiroyuki Tarumoto ,  Ryosuke Chinomi

IPC: C08J9/18 ,  C08J9/14 ,  C08J9/00

CPC classification number: C08J9/18 ,  C08J9/0014 ,  C08J9/0019 ,  C08J9/0023 ,  C08J9/0066 ,  C08J9/141 ,  C08J9/16 ,  C08J9/232 ,  C08J2201/03 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2325/06

Abstract: In foamable polystyrene resin particles that are obtained by granulating a polystyrene resin containing a flame retardant and a foaming agent, the flame retardant has a bromine atom in a molecule, contains less than 70% by mass of bromine, has a benzene ring in a molecule, and has a 5% by mass decomposition temperature in a range of from 200° C. to 300° C. the flame retardant is the sole source of bromine in the foamable polystyrene resin particles, a ratio (B:A) between (A) a by mass of the flame retardant contained in the total foamable polystyrene resin particles and (B) a % by mass of the flame retardant contained in the surface of the resin particles is in a range of from 0.8:1 to 1.2:1, and the amount of the flame retardant added is in a range of from 0.5% by mass to 5.0% by mass, based on 100 parts by mass of the resin fraction in the foamable polystyrene resin particles.

公开(公告)号：US20170283555A1

公开(公告)日：2017-10-05

申请号：US15507915

申请日：2015-09-28

Applicant: SEKISUI PLASTICS CO., LTD.

Inventor： Masayuki TAKANO ,  Yuta FUKUZAKI ,  Ryo AKUTA

IPC: C08G69/08 ,  G01N25/20 ,  B29C44/00

CPC classification number: C08G69/08 ,  B29C44/00 ,  C01P2004/64 ,  C08J9/16 ,  C08J9/232 ,  G01N25/20

Abstract: Amide-based elastomer expanded particles comprising, as a base resin, a non-crosslinked amide-based elastomer having a Shore D hardness of 65 or less, and having an average cell diameter of 20 to 250 μm.

公开(公告)号：US20170058116A1

公开(公告)日：2017-03-02

申请号：US15306223

申请日：2015-03-26

Applicant: Sekisui Plastics Co., Ltd.

Inventor： Mayumi Ando ,  Toshiki Takenaka ,  Akiyoshi Kusaka ,  Takashi Goto

IPC: C08L33/12 ,  G02B1/04 ,  C09D133/12 ,  C08L1/28 ,  C09D101/28

CPC classification number: C08L33/12 ,  C08F2/18 ,  C08F212/08 ,  C08F220/14 ,  C08F265/04 ,  C08F265/06 ,  C08G18/6225 ,  C08L1/284 ,  C08L101/00 ,  C08L2205/025 ,  C08L2205/03 ,  C09D7/40 ,  C09D101/284 ,  C09D133/12 ,  C09D175/04 ,  C09D201/00 ,  G02B1/04 ,  C08F2222/1013 ,  C08F2216/1475 ,  C08F2220/286 ,  C08F2/22 ,  C08F230/02 ,  C08L51/003 ,  C08L51/02

Abstract: There are provided a method for producing particles by suspension polymerization which ensures an excellent dispersion stability of the monomer and a simpler washing step, composite particles obtainable by this production method, and use of the composite particles. The method for producing composite particles includes a polymerization step of subjecting a monomer mixture which contains a polymerizable vinyl monomer to aqueous suspension polymerization in a presence of small polymer particles having a volume-average particle size of 20 to 500 nm, with a water-soluble cellulose compound adsorbing on surfaces of the small polymer particles, and thereby obtaining composite particles which contain the small polymer particles and large polymer particles greater than the small polymer particles.

Abstract translation: 提供了通过悬浮聚合制备颗粒的方法，其确保了单体的优异的分散稳定性和更简单的洗涤步骤，通过该制备方法获得的复合颗粒和复合颗粒的使用。 复合粒子的制造方法包括聚合工序，在体积平均粒径为20〜500nm的小聚合物粒子的存在下，使含有聚合性乙烯基单体的单体混合物进行水性悬浮聚合，得到水溶性 纤维素化合物吸附在小聚合物颗粒的表面上，从而获得含有小聚合物颗粒和大于聚合物颗粒的大聚合物颗粒的复合颗粒。