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

Claim 25:
26. A roll or sheet of graphic advertising suitable for use in outdoor applications, comprising a film layer and advertising indicia, wherein:
the film layer includes a first polyurethane having an ultimate elongation less than 200%, a second polyurethane having an ultimate elongation more than 400%, and is free or substantially free of polyvinyl chloride based polymer, each of the first polyurethane and the second polyurethane comprising at least one of a polyurethane polymer, a polyurethane prepolymer, and a polyurethane copolymer;
the film layer is provided in operative association with the advertising indicia; 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).