Polypropylene film

Details Polypropylene film Polypropylene film

1985-03-29

1986-06-17

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08J 518

Patent

active

045957380

ABSTRACT:
A simultaneously biaxially oriented, isotactic polypropylene film resistant to dynamic stresses, particularly tensile stresses in longitudinal direction, which has been stretched in a surface stretch ratio of at least 1:45, exhibiting a specific puncture resistance and certain elongation factors, is particularly suitable as a base or carrier film for acoustical and optical information, for adhesive tape, for multicolor printing, for packaging material and as a layer in laminates.

REFERENCES:
patent: 3324218 (1967-06-01), Gebler
patent: 4185148 (1980-01-01), Sato
patent: 4283463 (1981-08-01), Shiga

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