Apparatus and method for cooling an extruded blown film

Details Apparatus and method for cooling an extruded blown film Apparatus and method for cooling an extruded blown film

B - Operations, Transporting

29

C

B29C 49/66 (2006.01) B29C 47/88 (2006.01)

Patent

CA 2088718

Abstract Of The Disclosure Apparatus and method for cooling an extruded blown film in which the interior surface of the thin film bubble is contacted with a gas which does not contain water vapor to thereby cool the extruded film. The apparatus and method may employ an enclosed circulation system to provide for the reuse of the gas through cooling with a liquid coolant such as liquid cryogen.

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