PROPYLENE COPOLYMER FOR INJECTION MOLDING AND PROPYLENE COPOLYMER FOR SEEDLING BOX

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专利权人:

IDEMITSU PETROCHEM CO LTD

发明人:

KIJIMA MASATO,OTANI YASUO

申请号：

JP19960039360

公开号：

JPH09227630(A)

申请日:

1996.02.27

申请国别(地区):

日本

年份:

1997

代理人:

摘要：

PROBLEM TO BE SOLVED: To obtain a propylene copolymer for injection molding excellent in impact strength, moldability, and resistance to whitening, esp. a propylene copolymer suitable for a seedling box used for a transplanting machine. SOLUTION: This copolymer is a propylene-ethylene copolymer having a melt index (MI) of 10-100g/10min, a rubber content determined by pulse NMR of 7-20wt.%, an intrinsic viscosity [η]R of p-xylene sols. of 1.5-5dl/g, and an ethylene content of p-xylene insols. of 1-5wt.%.

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