Flexible plastic film
AssigneeLG Chem, Ltd.
InventorsHye Min KIM, Hyeok JEONG, Yeong Rae CHANG, Jin Young PARK, Soon Hwa JUNG
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Abstract
The present invention relates to a flexible plastic film, and more specifically to a flexible plastic film having excellent flexibility while exhibiting high hardness. According to the present invention, the flexible plastic film exhibits flexibility, bending property, high hardness, scratch resistance and high transparency, and hardly has a risk of damaging the film even in a state of being repeatedly warped, and thereby can be usefully applied to flexible mobile devices, display devices, front face and display unit of various instrument panels, and the like.
Claims15
A flexible plastic film comprising:
- a support substrate;
- and an ultraviolet curable coating layer formed on at least one surface of the support substrate,
- wherein the film exhibits a pencil hardness of 5H or more under a load of 1 kg, and
- wherein the film does not generate a crack of more than 3 mm when bending the middle of the film to be at an interval of 4 mm while both sides of the film are folded 90 degrees and repeating 100,000 times of folding and spreading both sides of the film at 90 degrees toward the bottom surface at room temperature at a speed of about 1 to about 3 times/second.
Dependencies are inferred from the claim text.