CA1294100C - Dispositif de soufflage et de stabilisation de la bulle dans un procede de production continue de pellicule extrudee-soufflee - Google Patents

Dispositif de soufflage et de stabilisation de la bulle dans un procede de production continue de pellicule extrudee-soufflee

Info

Publication number
CA1294100C
CA1294100C CA000564429A CA564429A CA1294100C CA 1294100 C CA1294100 C CA 1294100C CA 000564429 A CA000564429 A CA 000564429A CA 564429 A CA564429 A CA 564429A CA 1294100 C CA1294100 C CA 1294100C
Authority
CA
Canada
Prior art keywords
mandrel
die
bubble
blown film
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA000564429A
Other languages
English (en)
Inventor
Robert J. Cole
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/112,187 external-priority patent/US4846645A/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA1294100C publication Critical patent/CA1294100C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
CA000564429A 1987-10-26 1988-04-18 Dispositif de soufflage et de stabilisation de la bulle dans un procede de production continue de pellicule extrudee-soufflee Expired - Lifetime CA1294100C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US112,187 1987-10-26
US07/112,187 US4846645A (en) 1987-03-31 1987-10-26 Bubble forming and stabilizing device for use in continuous extrusion process for making a blown film

Publications (1)

Publication Number Publication Date
CA1294100C true CA1294100C (fr) 1992-01-14

Family

ID=22342541

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000564429A Expired - Lifetime CA1294100C (fr) 1987-10-26 1988-04-18 Dispositif de soufflage et de stabilisation de la bulle dans un procede de production continue de pellicule extrudee-soufflee

Country Status (1)

Country Link
CA (1) CA1294100C (fr)

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Legal Events

Date Code Title Description
MKLA Lapsed