Method for producing an ethylenic polymer composition

Details Method for producing an ethylenic polymer composition Method for producing an ethylenic polymer composition

1994-08-03

1995-06-06

Delmendo, Romulo H.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525247, 525270, 525324, 526116, C08L 2306, C08L 2308

Patent

active

054224004

ABSTRACT:
The invention relates to a method for producing an ethylenic polymer composition, suitable for molding, at high catalytic efficiency. The ethylenic polymer composition produced has as a high melt tension when melted, and a high melt modulus (die swell ratio). The process comprises a three step polymerization of an olefin employing a transition metal catalyst, the catalyst being produced in a specific manner.

REFERENCES:
patent: 4324691 (1982-04-01), Hartshorn et al.
patent: 4657996 (1987-04-01), Iwabuchi et al.
patent: 4975485 (1990-12-01), Sato et al.
Chemical Abstract, AN 117:8687j, JP 4-20510, Jan. 24, 1992.
Chemical Abstract, AN 117: 131731w, JP 4-91106, Mar. 24, 1992.
Chemical Abstract, AN 117: 131733y, JP 4-103604, Apr. 6, 1992.
Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, N.Y., 1987, p. 577.

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