Stretched film

Details Stretched film Stretched film

1983-04-12

1984-11-20

Michl, Paul R.

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

Synthetic resins

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

2642884, 2642902, 2642893, 525324, C08F25502

Patent

active

044839650

ABSTRACT:
A stretched film having excellent printing and writing properties and mechanical strength is produced by stretching a film molded from a styrene-grafted polyolefin resin in at least one direction. The styrene-grafted polyolefin resin is produced by heating an aqueous suspension containing 100 parts by weight of polyolefin resin particles, from 10 to 400 parts by weight of a styrene monomer, and a free radical polymerization initiator in an amount of from 0.01 to 1 part by weight per 100 parts by weight of the styrene monomer.

REFERENCES:
patent: 3652730 (1972-03-01), Favie
patent: 3869533 (1975-03-01), Janocha
patent: 4097554 (1978-06-01), Yui
patent: 4134957 (1979-01-01), Yoshimura

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