Polyalcohol film and laminated film comprising the same

Details Polyalcohol film and laminated film comprising the same Polyalcohol film and laminated film comprising the same

1996-03-29

1998-06-09

Le, H. Thi

Stock material or miscellaneous articles

Composite

Of aldehyde or ketone condensation product

428910, B32B 2742

Patent

active

057631018

ABSTRACT:
A film having a dynamic modulus of elasticity at 75.degree. C. of 10.sup.8 to 10.sup.11 dyne/cm.sup.2 and an oxygen permeability at 20.degree. C., 75% RH of not more than 5.times.10.sup.12 cc.cm/cm.sup.2.sec.cmHg comprises a polyalcohol obtained by reducing a polyketone comprising a carbon monoxide-ethylene alternate copolymer, the polyalcohol having an intrinsic viscosity of 0.3 to 3.0 dl/g and a melting point of 110.degree. to 180.degree. C.; and a laminated film comprising the same. These films have excellent high-speed bag formability, heat-pack sealability, film formability, film appearance, adhesiveness and gas barrier properties.

REFERENCES:
patent: 5300596 (1994-04-01), Hlatky
Database WPI, Derwent Publications, AN-94 329602, JP-A-06 255 057, Sep. 13, 1994.
Database WPI, Derwent Publications, AN-94 299384, JP-A-06 226 925, Aug. 16, 1994.
Database WPI, Derwent Publications, AN-94 097876, JP-A-06 049 203, Feb. 22, 1994.
Database WPI, Derwent Publications, AN-94 044951, JP-A-05 339 367, Dec. 21, 1993.
Database WPI, Derwent Publications, AN-90 324565, JP-A-02 232 228, Sep. 14, 1990.
Database WPI, Derwent Publications, AN-89 211522, JP-A-01 149 828, Jun. 12, 1989.

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