Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1995-10-25
2000-09-19
Wu, David W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526160, 526161, 526352, 526348, 526943, 5263485, 502114, 502152, C08F 4642
Patent
active
061213969
ABSTRACT:
A catalyst for polymerization of an olefin is provided which comprises a metallocene compound having a specified substituted fluorenyl group, and a compound capable of reacting the metallocene compound to form a cationic metallocene compound. With this compound, a high-molecular olefin polymer having narrow composition distribution and narrow molecular-weight distribution can be obtained at a polymerization temperature of not lower than 120.degree. C.
REFERENCES:
patent: 5539066 (1996-07-01), Winter et al.
patent: 5710222 (1998-01-01), Ewen et al.
Hasegawa Saiki
Sone Makoto
Yamada Satoru
Yano Akihiro
Lu Caixia
Tosoh Corporation
Wu David W.
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