METHOD FOR PRODUCING INSULATING HEAT DISSIPATION SHEET

    公开(公告)号:US20190016938A1

    公开(公告)日:2019-01-17

    申请号:US16138114

    申请日:2018-09-21

    发明人: Yoshiyuki SHIONO

    摘要: Provided is an insulating heat dissipation sheet hardly producing cracks, and exhibiting a favorable insulation property. The insulating heat dissipation sheet consists of a cured product of an organopolysiloxane composition comprising: (a) 100 parts by mass of an organopolysiloxane exhibiting an average degree of polymerization of 3,000 to 10,000; (b) 10 to 100 parts by mass of an organopolysiloxane exhibiting an average degree of polymerization of 2 to 2,000, and having alkenyl groups only at both ends of a molecular chain thereof, but at no other position on the molecular chain; (c) 2 to 20 parts by mass of an organohydrogenpolysiloxane having hydrogen atoms directly bonded to silicon atoms (Si—H groups); (d) 100 to 300 parts by mass of a boron nitride aggregate; (e) 0.1 to 10 parts by mass of a peroxide cross-linking agent; and (f) 0.1 to 10 parts by mass of a platinum group curing catalyst.