Silicone resin sheet, producing method thereof, encapsulating sheet, and light emitting diode device

摘要

A method for producing a silicone resin sheet includes the steps of forming a first coating layer by applying a first silicone resin composition which contains a first organopolysiloxane and a second organopolysiloxane; forming a precursor layer from the first coating layer by reacting the first organopolysiloxane with the second organopolysiloxane so as to have a conversion ratio of 5 to 40%; and forming a second layer on at least one surface in a thickness direction of the precursor layer by applying a second silicone resin composition which contains a third organopolysiloxane, a fourth organopolysiloxane, a hydrosilylation catalyst, and a curing retardant containing tetraalkylammonium hydroxide.