IT1141598B - Heat weldable polyolefin, esp. polypropylene, film - Google Patents

Heat weldable polyolefin, esp. polypropylene, film

Info

Publication number
IT1141598B
IT1141598B IT26966/80A IT2696680A IT1141598B IT 1141598 B IT1141598 B IT 1141598B IT 26966/80 A IT26966/80 A IT 26966/80A IT 2696680 A IT2696680 A IT 2696680A IT 1141598 B IT1141598 B IT 1141598B
Authority
IT
Italy
Prior art keywords
compsn
finishing
mol
esp
polypropylene
Prior art date
Application number
IT26966/80A
Other languages
Italian (it)
Other versions
IT8026966A0 (en
Inventor
Pierpaolo Buzio
Lucio Edefonti
Gianluigi Argela
Original Assignee
Sir Soc Italiana Resine 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 Sir Soc Italiana Resine Spa filed Critical Sir Soc Italiana Resine Spa
Priority to IT26966/80A priority Critical patent/IT1141598B/en
Publication of IT8026966A0 publication Critical patent/IT8026966A0/en
Priority to US06/331,361 priority patent/US4421780A/en
Priority to GB08137844A priority patent/GB2111857A/en
Priority to NL8105745A priority patent/NL8105745A/en
Priority to BE0/206912A priority patent/BE891588A/en
Priority to FR8124107A priority patent/FR2518557A1/en
Priority to DE19813151116 priority patent/DE3151116A1/en
Application granted granted Critical
Publication of IT1141598B publication Critical patent/IT1141598B/en

Links

Landscapes

  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
  • Wrappers (AREA)

Abstract

Flat weldable polyolefin film having a thickness of 10-100 microns and a surface tension of 38-40 dynes/cm, has one surface coated with a finishing compsn. and the other surface coated with a finishing compsn. under a varnish layer. The finishing compsn. comprises a polyethylene-imine of mol.wt. 10000-30000 or a urea or melamine formaldehyde condensn. prod. esp. the etherified derivs. or alkoxymelamine polyhydroxylate or their mixts. The varnish is an alkyl (meth)acrylate (co)polymer of mol.wt. 20000-100000, or vinyl(idene)chloride or acetate (co)polymers of mol.wt. 10000-20000. The treated film, pref. polypropylene, is used for packaging. It has improved printability, dimensional stability, reduced tendency to stick to the jaws of packaging machines and reduced residual solvent content.
IT26966/80A 1980-12-24 1980-12-24 Heat weldable polyolefin, esp. polypropylene, film IT1141598B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT26966/80A IT1141598B (en) 1980-12-24 1980-12-24 Heat weldable polyolefin, esp. polypropylene, film
US06/331,361 US4421780A (en) 1980-12-24 1981-12-16 Heat-sealable polyolefin films and processes for their preparation
GB08137844A GB2111857A (en) 1980-12-24 1981-12-16 Heat-sealable polyolefin films and processes for their production
NL8105745A NL8105745A (en) 1980-12-24 1981-12-21 WELDABLE FOILS OF POLYOLEFINS AND METHOD FOR THE PRODUCTION THEREOF
BE0/206912A BE891588A (en) 1980-12-24 1981-12-22 HEAT-WELDABLE POLYOLEFIN FILMS AND PROCESSES FOR THEIR PREPARATION
FR8124107A FR2518557A1 (en) 1980-12-24 1981-12-23 THERMOSOUDABLE POLYOLEFIN FILMS AND PROCESSES FOR THEIR PREPARATION
DE19813151116 DE3151116A1 (en) 1980-12-24 1981-12-23 HOT SEALABLE POLYOLEFIN FILM AND METHOD FOR THEIR PRODUCTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT26966/80A IT1141598B (en) 1980-12-24 1980-12-24 Heat weldable polyolefin, esp. polypropylene, film

Publications (2)

Publication Number Publication Date
IT8026966A0 IT8026966A0 (en) 1980-12-24
IT1141598B true IT1141598B (en) 1986-10-01

Family

ID=11220644

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26966/80A IT1141598B (en) 1980-12-24 1980-12-24 Heat weldable polyolefin, esp. polypropylene, film

Country Status (1)

Country Link
IT (1) IT1141598B (en)

Also Published As

Publication number Publication date
IT8026966A0 (en) 1980-12-24

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