IT1201466B - Contact lens cleaning soln. - Google Patents

Contact lens cleaning soln.

Info

Publication number
IT1201466B
IT1201466B IT22221/85A IT2222185A IT1201466B IT 1201466 B IT1201466 B IT 1201466B IT 22221/85 A IT22221/85 A IT 22221/85A IT 2222185 A IT2222185 A IT 2222185A IT 1201466 B IT1201466 B IT 1201466B
Authority
IT
Italy
Prior art keywords
density polyethylene
blends
temp
layer
low density
Prior art date
Application number
IT22221/85A
Other languages
Italian (it)
Other versions
IT8522221A0 (en
Inventor
L Thomas
F Bayer
Renato Saccani
Original Assignee
Zeiss Carl Spa
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 Zeiss Carl Spa filed Critical Zeiss Carl Spa
Priority to IT22221/85A priority Critical patent/IT1201466B/en
Publication of IT8522221A0 publication Critical patent/IT8522221A0/en
Application granted granted Critical
Publication of IT1201466B publication Critical patent/IT1201466B/en

Links

Landscapes

  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

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
IT22221/85A 1985-09-20 1985-09-20 Contact lens cleaning soln. IT1201466B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT22221/85A IT1201466B (en) 1985-09-20 1985-09-20 Contact lens cleaning soln.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22221/85A IT1201466B (en) 1985-09-20 1985-09-20 Contact lens cleaning soln.

Publications (2)

Publication Number Publication Date
IT8522221A0 IT8522221A0 (en) 1985-09-20
IT1201466B true IT1201466B (en) 1989-02-02

Family

ID=11193250

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22221/85A IT1201466B (en) 1985-09-20 1985-09-20 Contact lens cleaning soln.

Country Status (1)

Country Link
IT (1) IT1201466B (en)

Also Published As

Publication number Publication date
IT8522221A0 (en) 1985-09-20

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