Manufacture of continuous plastic sheets

Details Manufacture of continuous plastic sheets Manufacture of continuous plastic sheets

1980-05-02

1982-01-19

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

By calendering

2642101, 264284, 26433115, 425224, 425363, 425377, 425DIG235, B29D 714

Patent

active

043116582

ABSTRACT:
In the manufacture of continuous sheets or films of plastic material, especially by calendering, an improved stripping process and apparatus are disclosed whereby the degree of residual strain in such sheets and films can be controlled and production rates increased. In preferred embodiments of the process and apparatus, sheets and films of substantially uniform side-to-side texture are obtained.

REFERENCES:
patent: 806625 (1905-12-01), Beecher
patent: 1590638 (1926-06-01), Marquette
patent: 2317447 (1943-04-01), Domizi
patent: 2442876 (1948-06-01), Pearson
patent: 3074114 (1963-01-01), Petry
patent: 3346913 (1967-10-01), Lake et al.
patent: 3876737 (1975-04-01), Herner et al.
patent: 4014636 (1977-03-01), Pawelczyk
patent: 4038012 (1977-07-01), Sander

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