Thick and tough cellophane for casings and method of preparing t

Details Thick and tough cellophane for casings and method of preparing t Thick and tough cellophane for casings and method of preparing t

1979-05-30

1982-05-11

Morris, Theodore

Pipes and tubular conduits

Flexible

Casing

106168, 264198, 264208, 426135, C08L 124, D01F 206, F16L 1100

Patent

active

043288383

ABSTRACT:
Thick and tough cellophane for casings is provided wherein viscose is passed through an aqueous coagulation solution containing 15 to 30 weight percent of middle or higher alcohol and/or polyhydric alcohol, the coagulated viscose film being subjected to tension in its horizontal direction in the process of coagulation during passage in the coagulation solution. Thicker and tougher casing cellophane is provided wherein the coagulated viscose film exiting from the coagulation solution is further passed through a second aqueous coagulation solution containing inorganic acid and metallic salt thereof, the coagulated viscose film being subjected to tension in its horizontal direction during passage in the coagulation solution.

REFERENCES:
patent: 1683200 (1928-09-01), Lilienfeld
patent: 1997349 (1935-04-01), Schwalbe et al.
patent: 2176925 (1939-10-01), Reichel et al.
patent: 2271932 (1942-02-01), Atkinson
patent: 3877968 (1975-04-01), Maeno et al.

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