Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2006-05-05
2009-11-17
Lu, Caixia (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S125600, C526S351000, C502S116000, C502S125000, C502S127000
Reexamination Certificate
active
07619048
ABSTRACT:
Disclosed is a method for producing a propylene polymer using an alkoxysilane compound comprising a trialkylsilyl group in its molecular structure, specifically a method for easily producing an isotactic propylene polymer with dramatically improved melt flowability, owing to the improved reactivity of hydrogen that is provided as a molecular weight regulator, by specifically using an alkoxysilane compound comprising a trialkylsilyl group in the molecular structure thereof as an external electron donor in propylene polymerization.
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Ahn Jin-Kyu
Chang Ho-Sik
Lee Young-Joo
Park Joon-Ryeo
Barlow Josephs & Holmes, Ltd.
Lu Caixia
Samsung Total Petrochemicals Co., Ltd.
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