Patent ID: 11858241
Assignee: KLÖCKNER PENTAPLAST GMBH
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A single-layer or multilayer transparent film comprising one or more polymeric materials and one or more dyes, wherein the film has CIE color values a* and b* of −7≤a*≤0 and −15≤b*≤0 and an optical transmission T of 60%≤T≤95%, wherein the film comprises a blister film produced by thermoforming, wherein the film is susceptible to yellowing due to UV exposure, and wherein no yellowing of the film is perceptible to the human eye when the film is exposed to UV of 360 KJ·m−2 at a black standard temperature (BST) of 65° C., in accordance with DIN EN ISO 4892-2: 2013-06 B2.