Linear low density ethylene polymers blended with modified linea

Details Linear low density ethylene polymers blended with modified linea Linear low density ethylene polymers blended with modified linea

1985-03-06

1986-09-30

Briggs, Sr., Wilbert J.

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

Synthetic resins

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

525193, 525194, 525240, C08L 2308, C08L 2326

Patent

active

046147640

ABSTRACT:
The properties of linear ethylene polymers, especially linear, low density polyethylene (LLDPE), are improved by adding a chemically modified ethylene polymer to the base resin. The modification is brought about by the use of a free radical generator, preferably an organic peroxy compound such as benzoyl peroxide, optionally with an unsaturated silane such as vinyl trimethoxy silane. The use of the modified resin masterbatch enhances the crystallization of the polymer and improves the melt strength of the polymer, providing greater bubble stability in the blown tubular film extrusion process so that higher operating speeds may be employed. In addition, the films produced from the blends have improved antiblocking properties without significant deterioration of mechanical properties.

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