Catalysts for polymerization or copolymerization of...

Details Catalysts for polymerization or copolymerization of... Catalysts for polymerization or copolymerization of...

2007-07-03

2007-07-03

Choi, Ling-Sui (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S351000, C526S348000, C526S904000, C526S141000, C526S125600, C526S125300, C526S126000, C502S123000, C502S103000, C502S115000, C502S116000

Reexamination Certificate

active

10503414

ABSTRACT:
The invention has an object to provide a catalyst for polymerizing or copolymerizing an α-olefin, catalyst constituent thereof, and method of polymerizing α-olefins with the catalyst, for production of α-olefin polymers or copolymers with high hydrogen response, high polymarization reaction rate, high stereoregularity and excellent melt fluidity. The invention discloses a catalyst constituent of the catalyst for polymerizing or copolymerizing an α-olefin, represented by Formula 37 or 38:in-line-formulae description="In-line Formulae" end="lead"?Si(OR1)3(NR2R3)Formula 37in-line-formulae description="In-line Formulae" end="tail"?(where in Formula 37, R1is a hydrocarbon group with 1 to 6 carbon atoms; R2is a hydrocarbon group with 1 to 12 carbon atoms or hydrogen; and R3is a hydrocarbon group with 1 to 12 carbon atoms)in-line-formulae description="In-line Formulae" end="lead"?RNSi(OR1)3Formula 38in-line-formulae description="In-line Formulae" end="tail"?(where in Formula 38, R1is a hydrocarbon group with 1 to 6 carbon atoms; and RN is a cyclicl amino group).

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