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    • 62. 发明公开
    • 발포성 스티렌계 수지 입자, 및 이것을 이용한 예비 발포입자, 발포 성형체
    • 可泡沫苯乙烯树脂颗粒和预发泡颗粒和使用其的泡沫模具
    • KR1020050034723A
    • 2005-04-14
    • KR1020057001567
    • 2003-03-06
    • 가부시키가이샤 가네카
    • 이마이,다까마사스즈끼,히로유끼메노,히로시헨미,다쯔야오오하라,히데까즈
    • C08J9/22
    • C08J9/224C08J9/16C08J2203/14C08J2325/04
    • A foamable styrenic resin particle which contains 3 to 5.5 wt % of an easily volatile foaming agent containing 15 to 60 wt % of isopentane and has a styrenic monomer content of 1000 ppm or less, characterized in that it is coated with 0.2 to 0.5 parts by weight relative to 100 parts by weight of the resin particle of zinc stearate having a content of a sodium salt of a fatty acid of 0.1 wt % or less; and a foamable styrenic resin particle which contains an easily volatile foaming agent and has a styrenic monomer content of 1000 ppm or power, characterized in that it is coated with 0.01 to 0.5 wt % of at least one of a fatty acid amide and a fatty acid bisamide and 0.2 to 0.5 wt % of a metal salt of a fatty acid, both the percentages being relative to 100 parts by weight of the resin particle. The foamable styrenic resin particle can be advantageously used for producing foamed moldings such as a food container by pre-foaming and then molding.
    • 一种发泡苯乙烯树脂颗粒,其含有3至5.5重量%的容易挥发的发泡剂,其含有15至60重量%的异戊烷,并且苯乙烯单体含量为1000ppm或更低,其特征在于,其涂布有0.2至0.5份 相对于脂肪酸的钠盐的含量为0.1重量%以下的硬脂酸锌的树脂粒子100重量份, 和含有易挥发性发泡剂,苯乙烯类单体含量为1000ppm或功率的发泡性苯乙烯树脂颗粒,其特征在于,用0.01〜0.5重量%的脂肪酸​​酰胺和脂肪酸中的至少一种 二酰胺和0.2〜0.5重量%的脂肪酸​​的金属盐,这两个百分比相对于树脂颗粒的100重量份。 可发泡苯乙烯树脂颗粒可以有利地用于通过预发泡然后成型来生产泡沫塑料如食品容器。
    • 67. 发明公开
    • 발포성 폴리스티렌계 수지 입자, 그 제조방법 및 이를 이용한발포체
    • 可膨胀的聚苯乙烯树脂珠,它们的制备方法和使用它们的泡沫
    • KR1020000057292A
    • 2000-09-15
    • KR1019997004702
    • 1997-12-11
    • 가부시키가이샤 가네가
    • 오하라에이이찌야마구찌히데히로나카무라교이치
    • C08J9/22
    • C08J9/18B29B9/10C08J2203/14C08J2325/04C08J2351/00
    • PURPOSE: Provided are foamable modified polystyrene resin particles, a process for preparation thereof and a foamed article which is produced by using the foamable modified polystyrene resin particles and has excellent break resistance. CONSTITUTION: Expandable modified polystyrene resin beads (E) is prepared by incorporating a blowing agent (D) into beads of a modified polystyrene resin (C) comprising a polystyrene resin (A) and conjugated diene polymer rubber particles (B) homogeneously dispersed in the resin (A), which beads have such a property that the rubber particles (B) do not undergo any substantial change in the shape during the expansion; and a modified polystyrene resin foam which has cell walls made of a modified polystyrene resin comprising a polystyrene resin and conjugated diene polymer rubber particles dispersed in the resin and a rate of fusion of 50 % or above and in which the rubber particles substantially retain their globular shapes in the cell walls. The foam is equivalent to high-impact polystyrene foams in both crack resistance and rate of fusion and is inexpensive.
    • 目的:提供可发泡改性聚苯乙烯树脂颗粒,其制备方法和通过使用可发泡改性聚苯乙烯树脂颗粒制备并具有优异耐断裂性的发泡制品。 构成:通过将发泡剂(D)引入包含均匀分散在聚苯乙烯树脂(A)中的聚苯乙烯树脂(A)和共轭二烯聚合物橡胶颗粒(B)的改性聚苯乙烯树脂(C)的珠粒中来制备可发性改性聚苯乙烯树脂珠粒(E) 树脂(A),该珠具有橡胶粒子(B)在膨胀时不会发生形状的实质变化的性质; 和改性聚苯乙烯树脂发泡体,其具有由改性聚苯乙烯树脂制成的泡孔壁,该改性聚苯乙烯树脂包含分散在树脂中的聚苯乙烯树脂和共轭二烯聚合物橡胶颗粒,熔融率为50%或更高,并且其中橡胶颗粒基本保持其球形 形状在细胞壁。 泡沫相当于高抗冲聚苯乙烯泡沫,具有抗裂性和熔化速度,并且价格便宜。