Patent ID: 11872829
Assignee: AVERY DENNISON CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC B  C  Y | IPC B  C

Claim 18:
19. An advertising or informational graphic suitable for use in outdoor applications, comprising:
a surface;
an adhesive layer;
a printable substrate having front and back faces, the back face facing the surface and in contact with the adhesive layer, and the front face having promotional indicia provided thereon; and
a transparent film having a top face and a bottom face, with the bottom face facing the front face of the printable substrate;
wherein:
the transparent film comprises at least two different polyurethanes, and is free or substantially free of polyvinyl chloride based polymer, each of the at least two different polyurethanes comprising at least one of a polyurethane polymer, a polyurethane prepolymer, and a polyurethane copolymer; and
the film passes a rivet test in which (i) the film is applied over a painted aluminum panel having brazier rivet heads uniformly distributed over the aluminum panel such that the film is conformed around each rivet, (ii) the applied film and panel is dwelled for 24 hours at ambient conditions, (iii) a portion of the film around a rivet is then lifted and the diameter measured, (iv) the applied film and panel are then subjected to accelerated weathering including exposure to UV for 1,000 hours, and (v) after the accelerated weathering the portion of the lifted film is measured again and the diameter is compared to the measured diameter prior to accelerated weathering and the change in diameter is less than 0.0625 in (1.58 mm).