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    • 9. 发明公开
    • 올레핀 블록 공중합체 및 시트상 성형체
    • OLEFIN嵌段共聚物和片状模制产品
    • KR1020120084676A
    • 2012-07-30
    • KR1020120005863
    • 2012-01-18
    • 주식회사 엘지화학
    • 전상진박승기노경섭이난영김원희안상은
    • C08F297/08C08F210/16C08J5/18C08L53/00
    • C08F295/00C08F210/16C08F297/08C08F301/00C08F2500/10C08J5/18C08J2323/16
    • PURPOSE: An olefin block copolymer and a sheet type molded product are provided to simplify manufacturing process and improve heat resistance, elasticity, and processability. CONSTITUTION: An olefin block copolymer comprises a plurality of blocks or segments which include ethylene based or propylene based recurring unit and α-olefin based recurring unit at different weight fraction. The olefin block copolymer satisfies the following chemical formula 1 at 60 deg. Celsius or greater when 5-10 kg load is given for 12 hours or greater to the sheet type molded product of the block copolymer and removed. The chemical formula 1 is same as the follow: 60% >= ((T_0 - T)/T_0) × 100. In the chemical formula 1, T_0 indicates an initial thickness of the sheet-form molded body of the block copolymer. T indicates the thickness of the sheet-form molded body after the load being added and eliminated.
    • 目的:提供烯烃嵌段共聚物和片状成型体,以简化制造工艺,提高耐热性,弹性和加工性。 构成:烯烃嵌段共聚物包括多个嵌段或链段,其包括不同重量比的基于乙烯基或丙烯的重复单元和基于α-烯烃的重复单元。 烯烃嵌段共聚物在60℃下满足下列化学式1。 对于嵌段共聚物的片状成型体,当5-10kg负荷给予12小时以上时,摄氏度或更高。 化学式1与以下相同:60%> =((T_0-T)/ T_0)×100。在化学式1中,T_0表示嵌段共聚物的片状成型体的初始厚度。 T表示加载后的片状成型体的厚度。