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    • 2. 发明申请
    • METHOD OF FORMING MOLDED FOAM AND MOLDED FOAM
    • 形成模制泡沫和模制泡沫的方法
    • US20090029143A1
    • 2009-01-29
    • US11815105
    • 2006-01-30
    • Kentarou KanaeMinoru MaedaYutaka AbeMasato Kobayashi
    • Kentarou KanaeMinoru MaedaYutaka AbeMasato Kobayashi
    • B32B3/26C08L47/00
    • C08L23/0815B29C44/586B29L2031/3005C08F297/02C08J9/0061C08J9/122C08J2203/08C08J2323/02C08J2453/00C08L23/04C08L23/06C08L53/005C08L53/025C08L2203/14C08L53/00C08L2666/02C08L2666/06C08L2666/24C08L2666/04
    • A method of molding a foam-molded product is provided which includes foam-molding a thermoplastic elastomer composition with a gas or a supercritical fluid, the composition containing 10 to 93 parts by mass of (1) an ethylene/α-olefin copolymer, 3 to 30 parts by mass of (2) a crystalline polyethylene resin, 3 to 30 parts by mass of (3) a hydrogenated block copolymer formed by hydrogenating a specific block copolymer, and 1 to 30 parts by mass (4) an α-olefin resin having three or more carbon atoms (provided that the total amount of the components (1), (2), (3), and (4) is 100 parts by mass), and having a melt flow rate at a temperature of 230° C. and a load of 10 kg of 5 g/10 min or more and a melt tension at a temperature of 210° C. and a take-up speed of 2 m/min of less than 3.0 cN. A foam-molded product is provided which exhibits excellent closed-cell properties, a uniform cell shape, a small cell diameter, excellent elastic recovery, excellent flexibility, excellent surface appearance, produces no odor, and exhibits excellent recyclability and an excellent cushion feel.
    • 提供了一种模制泡沫成型产品的方法,其包括用气体或超临界流体将热塑性弹性体组合物发泡成型,所述组合物含有10至93质量份的(1)乙烯/α-烯烃共聚物,3 至(30)质量份的(2)结晶聚乙烯树脂,3〜30质量份的(3)通过氢化特定嵌段共聚物形成的氢化嵌段共聚物和1〜30质量份(4)α-烯烃 具有三个或更多个碳原子的树脂(条件是组分(1),(2),(3)和(4)的总量为100质量份),熔体流动速率为230℃ ℃和10kg的5g / 10分钟或更高的载荷,在210℃的温度下的熔体张力和小于3.0cN的2m / min的卷取速度。 提供了发泡成型品,其具有优异的闭孔性能,均匀的泡孔形状,小泡孔直径,优异的弹性回复性,优异的柔软性,优异的表面外观,不产生气味,并表现出优异的可回收性和优良的缓冲感。
    • 9. 发明申请
    • Thermoplastic elastomer composition, formed article and sealing material having low hardness
    • 热塑性弹性体组合物,成型品和硬度低的密封材料
    • US20070173591A1
    • 2007-07-26
    • US10588198
    • 2005-02-03
    • Kentarou KanaeMinoru MaedaMasami TsutsumiKenji Hasegawa
    • Kentarou KanaeMinoru MaedaMasami TsutsumiKenji Hasegawa
    • C09B67/00
    • C08L15/00C08C19/02C08L23/02C08L23/08C08L2666/02C08L2666/06
    • A thermoplastic elastomer composition comprising the following components [A], [B], [C], and [D]: [A] 5 to 60 mass % of an ethylene-α-olefin-based copolymer having a limiting viscosity of 3.5 dl/g or more measured in a decalin solvent at 135° C., [B] 1 to 20 mass % of a polyolefin-based resin, and [C] 30 to 94 mass % of a mineral oil-based softening agent, provided that the total of the components [A], [B], and [C] is 100 mass %, and for 100 parts by mass of the components [A], [B], and [C], [D] 0.1 to 50 parts by mass of a hydrogenated diene-based polymer, at least [A] the ethylene-α-olefin-based copolymer and [B] the polyolefin-based resin being dynamically treated with heat in the presence of a cross-linking agent, or the above thermoplastic elastomer composition wherein [A] is replaced with an oil-extended rubber comprising [A1] 20 to 80 mass % of an ethylene-α-olefin-based copolymer having a limiting viscosity of 3.5 dl/g or more measured in a decalin solvent at 135° C. and [C1] 20 to 80 mass % of a mineral oil-based softening agent, provided that the total of [A1] and [C1] is 100 mass %. This thermoplastic elastomer composition excels in molding processability, has low hardness, is free from bleed-out of a mineral oil-based softening agent, has high flexibility and superior rubber elasticity (rebound resilience and compression set), and excels in recycling efficiency.
    • 包含以下组分[A],[B],[C]和[D]的组分的热塑性弹性体组合物:[A] 5至60质量%的特性粘度为3.5dl的乙烯-α-烯烃基共聚物 / g或更多,在135℃的十氢化萘溶剂中,[B] 1〜20质量%的聚烯烃系树脂,[C] 30〜94质量%的矿物油系软化剂, 组分[A],[B]和[C]的总和为100质量%,对于100质量份的组分[A],[B]和[C],[D]为0.1〜50 质量份的氢化二烯类聚合物,至少[A]乙烯-α-烯烃类共聚物和[B]在交联剂存在下用热量动态处理的聚烯烃类树脂,或 上述热塑性弹性体组合物,其中[A]由含有[A1] 20〜80质量%的特性粘度为3.5dl / g以上的乙烯-α-烯烃系共聚物的油 - 萘烷溶剂在135° C和[C1] 20〜80质量%的矿物油系软化剂,条件是[A1]和[C1]的合计为100质量%。 该热塑性弹性体组合物的成型加工性优异,硬度低,不含矿物油系软化剂渗出,弹性高,橡胶弹性优异(回弹性和压缩永久变形),回收效率优异。