Production of blow molding polyethylene resin

Details Production of blow molding polyethylene resin Production of blow molding polyethylene resin

1994-06-09

1995-12-05

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5263486, 526352, C08F 424, C08F 1002

Patent

active

054730279

ABSTRACT:
Disclosed is a process for making polyethylene resin by reacting ethylene or ethylene and a C.sub.3 -C.sub.8 alpha-olefin in the presence of a CrO.sub.3 /TiO.sub.2 catalyst on a silica support in a gas-phase polymerization reactor and in the presence of a catalyst productivity reduction agent such as oxygen. The resin in one embodiment has a melt flow ratio between 65 and 140 and a melt index between 0.1 and 0.6 g/10 min. The resin is particularly suitable for use in blow-molding applications.

REFERENCES:
patent: 4011382 (1977-03-01), Levine et al.
patent: 4041224 (1977-08-01), Hoff et al.
patent: 4255542 (1981-03-01), Broun et al.
patent: 4540755 (1985-09-01), Mayhew et al.
patent: 5066736 (1991-11-01), Dumain et al.
patent: 5155186 (1992-10-01), Hatzan et al.
"Alpha-Olefin Polymerization in the Presence of Solid Catalysts, Attempts of Determine the Role of Oxygen in the Polymerization of Ethylene in the Presence of a Chromium Oxide Catalysts", Dahlig et al., Khimiya i Teknologiya Polimerov, No. 4, 23 (1961).
"Transfer Processes During Polymerization of Ethylene on a Chromium Oxide Catalyst, II. The Role of Impurities in Transfer Reactions", Ermakov et al., Kinetika i Kataliz (USSR), vol. 10, No. 2 (1969).

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