B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/140, 117/197
B32B 15/08 (2006.01) B32B 27/00 (2006.01) B32B 27/08 (2006.01) B32B 27/36 (2006.01) C09J 7/02 (2006.01)
Patent
CA 1040520
HEAT-ADHESIVE LAMINATED FILM ABSTRACT OF THE DISCLOSURE A heat-adhesive laminated film comprising a base film formed of plastic material having excellent heat resistance, such as a polyester, polyamide or polycarbonate, or formed of metal foil, such as aluminum or copper foil, and a film of a resin laiminated on at least one side of said base film. The resin comprises predominently a block copolyester having a melting point higher than 180°C but lower then the temperature at which the characteristics of the base film deteriorate and having a Young's modulus c (dyne/cm2) and a breaking elongation (.DELTA.?/?o) X 100 (%) when measured at 20°C and 130°C which satisfy, respectively, the following relationships: 107 (dyne/cm2) <.epsilon.<1010 (dyne/cm2) (.DELTA.?/?o) X 100 > 40 (%). These laminated films possess improved heat resistance and heat-seal strength and are useful in the packaging of food intended for extended storage, for packaging sterilized medical instruments and in the electrical field.
191607
Hayashi Ikuya
Matsuoka Mikio
Uno Keiichi
LandOfFree
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