| 摘要 |
1,238,276. Laminate materials. STAR STABILIMENTO ALIMENTARE S.p.A. 24 Oct., 1969 [28 Oct., 1968], No. 52199/68. Heading B5N. [Also in Divisions B1 and B8] A laminate for packaging material (see Division B8) comprises: (1) A propylene film opacized on one face with aluminium, the opacized face being bonded to a further polypropylene film by polyvinylidene chloride. (2) A polypropylene film bonded to the aluminized face of a polyethylene terephthalate film using polyvinylidene chloride. (3) Two outer layers of polypropylene film bonded to an inner layer of aluminium foil using a polyurethane. (4) Polypropylene film, polyester film, aluminium foil, and polyester film again, bonded together by a polyurethane. (5) Polypropylene/polyester/aluminium/polyester obtained by extruding polypropylene between the films. (6) Polyester/polypropylene bonded using a hot melt adhesive of an epoxy or epoxyphenol resin opacized by dyes, pigments or aluminium powder. |
