公开(公告)号：US10131076B2

公开(公告)日：2018-11-20

申请号：US15029784

申请日：2014-04-07

Applicant: Kaneka Corporation

Inventor： Kyosuke Murakami ,  Shinobu Ochikoshi ,  Toru Yoshida

IPC: B29C44/60 ,  B29C44/34 ,  C08J9/16 ,  G01N9/02 ,  B29K23/00

Abstract: A bulk-density measuring device includes a first vessel in which contracted pre-expanded particles are swollen and recovered from contraction in a pressure-reduced state where a vessel internal pressure is lower than atmospheric pressure; a second vessel filled with the pre-expanded particles after being swollen in the first vessel in the pressure-reduced state where a vessel internal pressure is lower than the atmospheric pressure, and into which the pre-expanded particles of a constant volume are collected fractionally; a pressure-reducing unit that adjusts the vessel internal pressures of the first vessel and the second vessel to be lower than the atmospheric pressure; and a scale that measures a weight of the pre-expanded particles filled in the second vessel.

公开(公告)号：US20150240043A1

公开(公告)日：2015-08-27

申请号：US14427529

申请日：2013-09-11

Applicant: KANEKA CORPORATION

Inventor： Toru Yoshida ,  Akihiro Itoi

IPC: C08J9/00

CPC classification number: C08J9/0066 ,  C08J9/0023 ,  C08J9/0038 ,  C08J9/0052 ,  C08J9/0061 ,  C08J9/122 ,  C08J9/18 ,  C08J9/232 ,  C08J9/34 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2205/052 ,  C08J2323/06 ,  C08J2323/08 ,  C08J2471/02 ,  C08L23/0815 ,  C08L2203/14

Abstract: Polyethylene-based resin foamed particles are obtained having good productivity, achieve an increase in foaming ratio, and in which a miniaturization of the average cell diameter is suppressed. A polyethylene-based resin in-mold-foam-molded body using the foamed particles is reduced in yellowing of the surface of the molded body and has favorable surface beauty (surface smoothness). The foamed particles contain, as a base resin, a polyethylene-based resin composition containing 1000 ppm or more and 4000 ppm or less in total of one or more compounds selected from the group consisting of antioxidants, metal stearates, and inorganic substances and 50 ppm or more and 20000 ppm or less of hydrophilic compounds, in which the Z average molecular weight is 30×104 or more and 100×104 or less, the surface layer film thickness is 11 μm or more and 120 μm or less, and the open-cell ratio is 12% or less.

Abstract translation: 得到生产性好，发泡率提高，抑制了平均泡孔直径的小型化的聚乙烯系树脂发泡粒子。 使用该发泡粒子的聚乙烯系树脂模内发泡成型体在成形体的表面变黄的同时减少，具有良好的表面美观性（表面平滑性）。 发泡粒子含有作为基础树脂的含有1000ppm以上且4000ppm以下的聚乙烯系树脂组合物，其中，一种或多种选自抗氧化剂，金属硬脂酸盐和无机物质的化合物和50ppm 以上且20000ppm以下的亲水性化合物，其中Z平均分子量为30×10 4以上且100×10 4以下，表层膜厚为11μm以上且120μm以下，开放 - 电池比为12％以下。

公开(公告)号：US20150057387A1

公开(公告)日：2015-02-26

申请号：US14384617

申请日：2013-03-13

Applicant: KANEKA CORPORATION

Inventor： Keishi Sato ,  Toru Yoshida

IPC: C08J9/00 ,  B29C44/02

CPC classification number: C08J9/0028 ,  B29C44/02 ,  B29C44/445 ,  B29K2023/12 ,  B29K2079/00 ,  C08J9/0023 ,  C08J9/18 ,  C08J9/232 ,  C08J2323/12

Abstract: An in-mold foaming molded product having a thin wall part of the present invention contains expanded polypropylene resin particles. The expanded polypropylene resin particles include a polypropylene resin composition that contains an aliphatic diethanolamine fatty acid ester and an aliphatic diethanolamine in a total amount of not less than 0.1 part by weight but not greater than 5 parts by weight with respect to 100 parts by weight of polypropylene resin.

Abstract translation: 具有本发明的薄壁部分的模内发泡成型体含有发泡聚丙烯树脂颗粒。 发泡聚丙烯树脂颗粒包括含有脂肪族二乙醇胺脂肪酸酯和脂肪族二乙醇胺的聚丙烯树脂组合物，其总量相对于100重量份的不超过0.1重量份但不大于5重量份 聚丙烯树脂。

公开(公告)号：US20170369669A1

公开(公告)日：2017-12-28

申请号：US15695293

申请日：2017-09-05

Applicant: Kaneka Corporation

Inventor： Toru Yoshida ,  Shintaro Miura

IPC: C08J9/16

CPC classification number: C08J9/16 ,  C08J2323/14 ,  C08J2423/14

Abstract: Expanded polypropylene resin particles include a polypropylene resin as a base material resin, wherein the polypropylene resin has a flexural modulus of 750 MPa to 1100 MPa. The flexural modulus and a melting point of the expanded polypropylene resin particles satisfy Expression (1): [Flexural modulus (MPa)]

公开(公告)号：US09493622B2

公开(公告)日：2016-11-15

申请号：US14441375

申请日：2013-11-25

Applicant: KANEKA CORPORATION

Inventor： Toru Yoshida

IPC: C08J9/04 ,  B65D25/28 ,  C08L23/14 ,  C08J9/18 ,  C08J9/12 ,  C08J9/232 ,  B29C44/34 ,  B29C44/02 ,  B65D25/30 ,  C08J9/00 ,  B29K23/00 ,  B29K105/04 ,  B29L31/00

CPC classification number: C08J9/04 ,  B29C44/02 ,  B29C44/3453 ,  B29C44/3461 ,  B29K2023/12 ,  B29K2105/048 ,  B29L2031/7162 ,  B65D25/28 ,  B65D25/30 ,  C08J9/0028 ,  C08J9/122 ,  C08J9/18 ,  C08J9/232 ,  C08J2201/034 ,  C08J2203/06 ,  C08J2323/14 ,  C08L23/14 ,  Y10T428/1352 ,  Y10T428/1376

Abstract: Polypropylene resin foamed particles containing a polypropylene random copolymer having a ratio of a Z-average molecular weight Mz to a number average molecular weight Mn, Mz/Mn, of 20 or more and 300 or less, a melt-flow rate of 5 g/10 minutes or more and 20 g/10 minutes or less, a melt strength of 2.5 cN or less, and a flexural modulus of 600 MPa or more and 1600 MPa or less, and preferably having at least two heat quantity areas of fusion can provide an in-mold foam molded article such as a returnable box having a short molding cycle at in-mold foam molding and beautiful surface properties; and are excellent in moldability even if an inner pressure more than the atmospheric pressure is not provided to the particles or the particles are filled in a mold without compressing them with a gas during the in-mold foam molding.

Abstract translation: 含有Z均分子量Mz与数均分子量Mn，Mz / Mn的比为20以上且300以下，聚丙烯无规共聚物的熔融流动速率为5g / 10分钟以上20g / 10分钟以下，熔融强度为2.5cN以下，弯曲弹性模量为600MPa以上，1600MPa以下，优选具有至少2个热熔融面积， 诸如在模内发泡成型中具有短的成型周期的可回收盒的模内发泡模塑制品和美观的表面性质; 并且即使在模内发泡成型时，即使不向颗粒提供超过大气压的内部压力，或者在模具中填充颗粒而不用气体压缩，则成型性优异。

公开(公告)号：US20160319095A1

公开(公告)日：2016-11-03

申请号：US15108482

申请日：2014-12-16

Applicant: KANEKA CORPORATION

Inventor： Toru Yoshida ,  Jun Fukuzawa

IPC: C08J9/00 ,  C08J9/232 ,  B29C44/02 ,  C08J5/18 ,  B29C44/34 ,  C08J9/18 ,  C08J9/12

CPC classification number: C08J9/0066 ,  B29C44/02 ,  B29C44/3461 ,  B29C44/348 ,  B29K2023/065 ,  B29K2023/12 ,  B29K2105/041 ,  B29K2105/048 ,  C08J5/18 ,  C08J9/122 ,  C08J9/18 ,  C08J9/232 ,  C08J2203/02 ,  C08J2205/044 ,  C08J2205/06 ,  C08J2323/06 ,  C08J2323/12 ,  C08J2323/14

Abstract: Polyolefin resin foam particles prepared by foaming polyolefin resin particles include a polyolefin resin composition including two or more inorganic antiblocking agents in a total amount of 0.03 parts by weight or more and 2 parts by weight or less relative to 100 parts by weight of a polyolefin resin. The polyolefin resin foam particles have an average cell diameter of 100 μm or more and 400 μm or less.

Abstract translation: 通过发泡聚烯烃树脂颗粒制备的聚烯烃树脂泡沫颗粒包括总共含量为0.03重量份以上且2重量份以下的无机防粘连剂的聚烯烃树脂组合物相对于100重量份的聚烯烃树脂 。 聚烯烃树脂泡沫颗粒的平均泡孔直径为100μm以上且400μm以下。

公开(公告)号：US20140346411A1

公开(公告)日：2014-11-27

申请号：US14367073

申请日：2012-12-14

Applicant: KANEKA CORPORATION

Inventor： Shintaro Miura ,  Toru Yoshida

IPC: H01B1/24 ,  C08J9/00

CPC classification number: H01B1/24 ,  C08J9/0066 ,  C08J9/122 ,  C08J9/16 ,  C08J2203/06 ,  C08J2323/10 ,  C08J2471/02 ,  C08L23/04 ,  C08L23/10 ,  C08L2205/16

Abstract: Provided are expanded polypropylene resin particles from which a polypropylene resin-based in-mold expansion-molded product is obtainable, the polypropylene resin-based in-mold expansion-molded product being excellent in electrical conductivity and particularly having improved in flame retardancy with no use of a flame retardant. Expanded polypropylene resin particles obtainable by expanding polypropylene resin particles containing a polypropylene resin composition which contains electrically conductive carbon black in an amount in a range of not less than 11 parts by weight and not more than 25 parts by weight with respect to 100 parts by weight of polypropylene resin, the electrically conductive carbon black having a dibutyl phthalate absorption amount in a range of not less than 300 cm3/100 g and not more than 600 cm3/100 g, have an average cell diameter in a range of more than 0.16 mm and not more than 0.35 mm.

Abstract translation: 本发明提供可获得基于聚丙烯树脂的模内发泡成型体的发泡聚丙烯树脂颗粒，导电性优异且特别是阻燃性提高的无聚丙烯树脂的模内发泡成型体 的阻燃剂。 膨胀聚丙烯树脂颗粒可以通过将包含导电性炭黑的聚丙烯树脂组合物膨胀的聚丙烯树脂颗粒膨胀，相对于100重量份，其含量为不小于11重量份且不超过25重量份 的聚丙烯树脂，具有不小于300cm 3 / 100g且不大于600cm 3 / 100g范围内的邻苯二甲酸二丁酯吸收量的导电炭黑的平均泡孔直径在大于0.16mm的范围内 不超过0.35mm。