Ethylene-.alpha.-olefin copolymer and molded article thereof

Details Ethylene-.alpha.-olefin copolymer and molded article thereof Ethylene-.alpha.-olefin copolymer and molded article thereof

1995-12-11

1997-12-23

Wu, David W.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526161, 5263486, C08F21002

Patent

active

057008957

ABSTRACT:
A novel ethylene-.alpha.-olefin copolymer and a molded article formed therefrom, wherein (A) a density is 0.870 to 0.945 g/cm.sup.3, (B) a relation between an activation energy of flow Ea (J/mole K) obtained by measurement of viscoelasticity at at least three temperatures in the molten state and a melt flow rate MFR (g/10 min) satisfies the following equation (1):

REFERENCES:
Patent Abstracts of Japan, vol. 12, No. 223 (C-507), 24 Jun. 1988 & JP-A-63 020 309 (Japan Synthetic Rubber Co., Ltd.), 28 Jan. 1988.
Polymer Journal, vol. 24, No. 9, 15 Sep. 1992, Tokyo, pp. 939-949, XP330633, S. Hosoda, A. Uemura, "Effect of the Structural Distribution on the Mechanical Properties of Linear Low-Density Polyethylenes".
Patent Abstracts of Japan, vol. 12, No. 223 (C-507); 24 Jun. 1988 & JP-A-63 020 039 (Japan Synthetic Rubber Co.; Ltd.); 28 Jan. 1988.

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