发明名称 |
Expanded polypropylene resin bead and process of producing same |
摘要 |
Expanded, substantially non-crosslinked polypropylene resin beads capable of producing a high rigidity foamed molding at a relatively low temperature. The beads are produced by a process including a step of dispersing substantially non-crosslinked polypropylene resin particles in a dispersing medium containing an organic peroxide to obtain a dispersion, a step of heating the dispersion to decompose the organic peroxide and to modify the surface of the surface-modified polypropylene resin particles, and a step of expanding the non-crosslinked, surface-modified polypropylene resin particles using a blowing agent.
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申请公布号 |
US2003162012(A1) |
申请公布日期 |
2003.08.28 |
申请号 |
US20030379569 |
申请日期 |
2003.03.06 |
申请人 |
SASAKI HIDEHIRO;HIRA AKINOBU;HASHIMOTO KEIICHI;TOKORO HISAO |
发明人 |
SASAKI HIDEHIRO;HIRA AKINOBU;HASHIMOTO KEIICHI;TOKORO HISAO |
分类号 |
C08J9/224;C08L23/10;(IPC1-7):B32B5/16 |
主分类号 |
C08J9/224 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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