Process of making polyethylene terephthalate photographic film b

Details Process of making polyethylene terephthalate photographic film b Process of making polyethylene terephthalate photographic film b

1993-07-27

1995-01-31

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

2642358, 264342RE, B29C 5514

Patent

active

053857046

ABSTRACT:
The invention provide an improved polyethylene terephthalate photographic film base having excellent dimensional stability, optical clarity and mechanical strength while also possessing a crystalline configuration that enables finishing by cutting, chopping or perforating techniques at reduced fracture resistance with decreased generation of dirt.

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