04399094 is referenced by 14 patents and cites 17 patents.

A plastic film is formed by annealing a molten tubular film in a first enclosed space and immediately thereafter directing cold air perpendicular to the axis thereof and expanding and solidifying the film in a second enclosed space while in contact with cold air flowing parallel to film travel.

Title
Process and apparatus for forming a plastic film
Application Number
6/267353
Publication Number
4399094
Application Date
May 26, 1981
Publication Date
August 16, 1983
Inventor
Youichi Matsuda
Yokohamashi
JP
Shigeo Fujitani
Yokohamashi
JP
Agent
Clement J Vicari
Assignee
Union Carbide Corporation
CT, US
IPC
B29D 7/22
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