IT1201229B - Mirror crystals sheets shaping - Google Patents

Mirror crystals sheets shaping

Info

Publication number
IT1201229B
IT1201229B IT09332/85A IT933285A IT1201229B IT 1201229 B IT1201229 B IT 1201229B IT 09332/85 A IT09332/85 A IT 09332/85A IT 933285 A IT933285 A IT 933285A IT 1201229 B IT1201229 B IT 1201229B
Authority
IT
Italy
Prior art keywords
density polyethylene
blends
temp
layer
low density
Prior art date
Application number
IT09332/85A
Other languages
Italian (it)
Other versions
IT8509332A0 (en
Inventor
Giuseppe Cambi
Original Assignee
Giuseppe Cambi
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
Application filed by Giuseppe Cambi filed Critical Giuseppe Cambi
Priority to IT09332/85A priority Critical patent/IT1201229B/en
Publication of IT8509332A0 publication Critical patent/IT8509332A0/en
Application granted granted Critical
Publication of IT1201229B publication Critical patent/IT1201229B/en

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Abstract

Polyolefin film with a mat finish comprises at least two coextruded layers; an upper mat finish layer comprising high density polyethylene, polypropylene or blends thereof and a second layer comprising low density polyethylene, linear low density polyethylene or blends thereof. The film is prepd. by coextrusion of an external layer comprising high density polyethylene, polypropylene or blends thereof and an internal layer comprising low density polyethylene, linear low density polyethylene or blends thereof. The extrusion process comprises passage of the coextruded layers from feed zone to an extruder die through temp. control zones where the external layer passing through the temp. control zones from the feed zone is heated more rapidly to a higher temp. than the corresp. internal layer in the corresp. temp. control zone
IT09332/85A 1985-02-12 1985-02-12 Mirror crystals sheets shaping IT1201229B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT09332/85A IT1201229B (en) 1985-02-12 1985-02-12 Mirror crystals sheets shaping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT09332/85A IT1201229B (en) 1985-02-12 1985-02-12 Mirror crystals sheets shaping

Publications (2)

Publication Number Publication Date
IT8509332A0 IT8509332A0 (en) 1985-02-12
IT1201229B true IT1201229B (en) 1989-01-27

Family

ID=11128563

Family Applications (1)

Application Number Title Priority Date Filing Date
IT09332/85A IT1201229B (en) 1985-02-12 1985-02-12 Mirror crystals sheets shaping

Country Status (1)

Country Link
IT (1) IT1201229B (en)

Also Published As

Publication number Publication date
IT8509332A0 (en) 1985-02-12

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Effective date: 19990225