IT1201463B - Cryptate(s) prepn. - Google Patents

Cryptate(s) prepn.

Info

Publication number
IT1201463B
IT1201463B IT22136/85A IT2213685A IT1201463B IT 1201463 B IT1201463 B IT 1201463B IT 22136/85 A IT22136/85 A IT 22136/85A IT 2213685 A IT2213685 A IT 2213685A IT 1201463 B IT1201463 B IT 1201463B
Authority
IT
Italy
Prior art keywords
density polyethylene
blends
temp
layer
low density
Prior art date
Application number
IT22136/85A
Other languages
Italian (it)
Other versions
IT8522136A0 (en
Inventor
Fernando Montanari
Silvio Quici
Pier Lucio Anelli
Original Assignee
Consiglio Nazionale Ricerche
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 Consiglio Nazionale Ricerche filed Critical Consiglio Nazionale Ricerche
Priority to IT22136/85A priority Critical patent/IT1201463B/en
Publication of IT8522136A0 publication Critical patent/IT8522136A0/en
Application granted granted Critical
Publication of IT1201463B publication Critical patent/IT1201463B/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
IT22136/85A 1985-09-13 1985-09-13 Cryptate(s) prepn. IT1201463B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT22136/85A IT1201463B (en) 1985-09-13 1985-09-13 Cryptate(s) prepn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22136/85A IT1201463B (en) 1985-09-13 1985-09-13 Cryptate(s) prepn.

Publications (2)

Publication Number Publication Date
IT8522136A0 IT8522136A0 (en) 1985-09-13
IT1201463B true IT1201463B (en) 1989-02-02

Family

ID=11192025

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22136/85A IT1201463B (en) 1985-09-13 1985-09-13 Cryptate(s) prepn.

Country Status (1)

Country Link
IT (1) IT1201463B (en)

Also Published As

Publication number Publication date
IT8522136A0 (en) 1985-09-13

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