Ethylene based polymer composition and film

Details Ethylene based polymer composition and film Ethylene based polymer composition and film

2008-05-15

2011-12-13

Nutter, Nathan M (Department: 1765)

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

Synthetic resins

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

C525S240000

Reexamination Certificate

active

08076418

ABSTRACT:
An ethylene based polymer composition comprising the following component (A), the following component (B) and the following component (C) wherein the content of the component (A) is 120 to 1700 parts by weight per 100 parts by weight of the component (B) and the content of the component (C) is 3 to 20 parts by weight per 100 parts by weight of the component (B):Component (A): an ethylene-α-olefin copolymer satisfying all of the following requirements (a1) to (a3):(a1) the density is 890 to 925 kg/m3,(a2) the melt flow rate (MFR) is 0.1 to 30 g/10 minutes,(a3) the flow activation energy (Ea) is less than 50 kJ/mol,Component (B): an ethylene based polymer satisfying all of the following requirements (b1) to (b3):(b1) the density is 890 to 925 kg/m3,(b2) the melt flow rate (MFR) is 0.1 to 10 g/10 minutes,(b3) the flow activation energy (Ea) is 50 kJ/mol or more,Component (C): an ethylene-α-olefin copolymer satisfying all of the following requirements (c1) to (c3):(c1) the density is 890 to 925 kg/m3,(c2) the intrinsic viscosity [η] measured in a tetralin solution is 4 to 15 dL/g,(c3) the flow activation energy (Ea) is less than 50 kJ/mol.

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