Patent ID: 9394467
Filing Date: 2016-07-19
CPC Classification: B05D,C08J,C09D,C09J,Y10T

Claim Text:
1. A method for producing a release liner, the release liner comprising a plant-derived film substrate; and a release coat layer lying on or over at least one side of the film substrate, the release coat layer derived from a thermosetting silicone resin, the method comprising the steps as follows: Step A of applying a thermosetting silicone release agent to at least one side of a plant-derived film substrate, which comprised at least one selected from the group consisting of a poly(lactic acid) film, a cellulose film, and a polyamide film, to for a coat layer thereon, the thermosetting silicone release agent comprising 100 parts by weight of a thermosetting silicone resin and 0.05 to 0.55 part by weight of a curing catalyst, which comprises a platinum catalyst; Step B of drying the coat layer after Step A at a temperature of from 40° C. to 90° C. for a duration of from 10 to 60 seconds; Step C of applying an ultraviolet ray to the coat layer after Step B at a dose of from 50 to 300 mJ/cm Step D of aging the coat layer after Step C at a temperature of from 30° C. to 70° C. for a duration of 12 to 240 hours.