Polymer composition and preparation method

Details Polymer composition and preparation method Polymer composition and preparation method

1983-03-14

1986-07-01

Lieberman, Allan M.

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

Synthetic resins

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

264 22, 522112, 522161, C08J 328, C08L 2206, C08L 2209

Patent

active

045981280

ABSTRACT:
An ethylene polymer composition is provided, the composition being a blend of a first ethylene polymer and a second ethylene polymer, the second ethylene polymer characterized by molecules having long chain Y-branches. The blend can be prepared by an extrusion process in which a portion of the polyethylene fed to the process is irradiated and the irradiated and non-irradiated polymers are blended by melt extrusion. The blends exhibit high flow activation energies and good blow-molding properties.

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Jacovic et al., Rheological Study of Long Branching in Polyethylene by Blending, Journal of App. Poly. Sci., 23, 517-527 (1979).

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