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    • 4. 发明授权
    • 사출발포 일체 성형용 폴리프로필렌 수지 조성물
    • 一步注射 - 泡沫成型工艺的聚丙烯树脂组合物
    • KR100666795B1
    • 2007-01-09
    • KR1020050117221
    • 2005-12-02
    • 현대자동차주식회사롯데케미칼 주식회사
    • 정기연한인수조성민이동우
    • C08L23/16C08L23/10C08K3/00
    • Provided is a polypropylene resin composition for one-step injection-blow molding process, which emits no bad odor, has excellent hardness, flexibility, low-temperature impact property, injection moldability and foamability, and is useful for the manufacture of an instrument panel, door trim or surface material of a car. The polypropylene resin composition for one-step injection-blow molding process comprises: (a) 5-20 wt% of a polypropylene resin selected from a propylene homopolymer and a binary polymer formed of propylene and C2-C10 alpha-olefin; (b) 50-70 wt% of an ethylene-alpha-olefin copolymer rubber comprising ethylene and 10-30 wt% of C2-C10 alpha-olefin and having a Mooney viscosity of 3-10 (ML1+4, 121 deg.C); (c) 10-30 wt% of ethylene-octene wax having an octene content of 10-40 wt% and a melt index of 500-1500g/10 min. (2.16 kg, 230 deg.C); and (d) 3-10 wt% of inorganic fillers.
    • 本发明提供一种注塑吹塑成型方法的聚丙烯树脂组合物,其不产生恶臭,具有优异的硬度,柔韧性,低温冲击性,注塑成型性和发泡性,并且可用于制造仪表板, 车门饰面或汽车的表面材料。 用于一步注射吹塑法的聚丙烯树脂组合物包括:(a)5-20重量%的选自丙烯均聚物和由丙烯和C 2 -C 10α-烯烃形成的二元聚合物的聚丙烯树脂; (b)50-70重量%的包含乙烯和10-30重量%的C 2 -C 10α-烯烃并且门尼粘度为3-10(ML1 + 4,121℃)的乙烯-α-烯烃共聚物橡胶 ); (c)10-30重量%的辛烯含量为10-40重量%,熔体指数为500-1500克/ 10分钟的乙烯 - 辛烯蜡。 (2.16kg,230℃); 和(d)3-10重量%的无机填料。
    • 7. 发明公开
    • 자동차 인스트루먼트 표피재용 파우더 슬러쉬 성형을 위한미세 구형 파우더 제조 장치 및 방법
    • 圆形微粉的方法和装置用于粉末SLUSH模制
    • KR1020080114126A
    • 2008-12-31
    • KR1020070063389
    • 2007-06-27
    • 현대자동차주식회사롯데케미칼 주식회사
    • 한인수정기연조성민조연환
    • B29B9/06B29C47/02
    • B29B9/06B29B9/12B29B11/10
    • An apparatus and a method of preparing a spherical fine powder for powder slush molding for automobile instrument surface materials are provided to reduce high process costs during freeze pulverization and to solve problems such as poor melting on the back side of a molded article and formation of pin holes in the molded article by preparing spherical fine powder with an uniform particle size. An apparatus of preparing a spherical fine powder for powder slush molding for automobile instrument surface materials comprises: an extruder(10) melting and kneading olefin- and urethane-based thermoplastic resins at high temperatures; a gear pump(12) transferring the thermoplastic resins that have been melted and kneaded at high temperatures to the fine extrusion die as much as a fixed quantity at a time; a fine extrusion die(14) including an underwater type cutting unit(20) cutting the extruded thermoplastic resins to spherical fine powder; a cooling water tank(16); a heat exchanger(18); a transfer line(24); a centrifuge(22); a cooling water return line; and a spherical fine powder discharge line(28).
    • 提供一种制备用于汽车仪器表面材料的用于粉末搪塑的球形细粉末的设备和方法,以降低冷冻粉碎过程中的高工艺成本,并解决成型品背面的熔融不良等问题,并形成销 通过制备具有均匀粒径的球形细粉末,成型制品中的孔。 一种制备用于汽车仪器表面材料的粉末搪塑的球形细粉的设备包括:挤压机(10)在高温下熔融和捏合烯烃和氨基甲酸酯类热塑性树脂; 将已经在高温下熔融混炼的热塑性树脂一次多次固定到精细挤出模上的齿轮泵(12) 包括将挤出的热塑性树脂切割成球形细粉末的水下型切割单元(20)的精细挤出模具(14) 冷却水箱(16); 热交换器(18); 传输线(24); 离心机(22); 冷却水回水管线; 和球状细粉末排出管线(28)。