High strength linear, low density ethylene copolymer

Details High strength linear, low density ethylene copolymer High strength linear, low density ethylene copolymer

1990-08-13

1992-05-19

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526106, 526134, 5263482, 5263484, 5263486, C08F21014, C08F21008

Patent

active

051150689

ABSTRACT:
A copolymer of ethylene and a higher alpha-olefin, preferably 1-hexene and/or 4-methyl-1-pentene, can be produced using an activated and subsequently carbon monoxide reduced chromium containing catalyst and a trialkyl boran cocatalyst. The polymerization process must be carefully controlled to produce a copolymer resin that can be made into a tough, impact resistant film.

REFERENCES:
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patent: 4619980 (1986-10-01), McDaniel et al.
patent: 4672096 (1987-06-01), Nowlin
patent: 4735931 (1988-04-01), McDaniel et al.
patent: 4814135 (1989-03-01), Heitz
ASTM Standard Procedure D1709-75.
ASTM Standard Procedure D1709-85.
Patent Abstracts of Japan, vol. 7, No. 135 (C-170) (1280) Jun. 11, 1983, and JP-A-58 49708 (Mitsubishi) Mar. 24, 1983.

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