Films of blends of linear ethylene polymers and aromatic polymer

Details Films of blends of linear ethylene polymers and aromatic polymer Films of blends of linear ethylene polymers and aromatic polymer

1984-12-24

1986-04-01

Seccuro, Carman J.

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

Synthetic resins

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

525 98, 525931, 525 88, C08L 238, C08L 2318, C08L 2504

Patent

active

045799121

ABSTRACT:
Linear low density copolymers (LLDPE) are blended with up to about 10 weight percent of an aromatic polymer, e.g., polystyrene or poly(para-methylstyrene), to give films having improved MD tear strength or equivalent MD tear strength and higher stiffness compared to the LLDPE alone. Also, extruder torque is lower and bubble stability is greater in blown film extrusion with the blends as well as in blends in which medium or high density polyethylene is used instead of the LLDPE.

REFERENCES:
patent: 3274328 (1966-09-01), Davis
patent: 3993718 (1976-11-01), Bontinck et al.
patent: 4255531 (1981-03-01), Arlut
patent: 4260565 (1981-04-01), D'Amico et al.
patent: 4386188 (1983-05-01), Grancio et al.
Chemical Week 2/82, "A Better Syrene . . . " pp. 42-45.
Package Engineering, 2/80, "New Polyethylenes" pp. 39-40.
Plastics World, 12/79, "New Materials" p. 86.

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