| 摘要 |
To provide a material suitable for sealing an LED element or for a gas barrier layer for a resin component, and an LED device, an FPD device and a semiconductor device using it. A process for producing a polymer composition, which comprises mixing and reacting as component (A), an unsaturated group-containing siloxane compound of the following formula (1):
wherein R 1 is a hydrogen atom or a C 1-20 hydrocarbon group, m is an integer of at least 3, a is an integer of from 0 to 10, and the siloxane structure is a chain or cyclic structure, as component (B), a siloxane compound having a structure of the following formula (2) wherein hydrogen is directly bonded to silicon,
wherein R 2 is a C 1-20 hydrocarbon group, n is an integer of at least 3, and the siloxane structure is a chain or cyclic structure, as component (C), at least one member selected from the group consisting of organic metal compounds of Group 1, 2, 12, 13 and 14 metals of the periodic table, and as component (D), a metal catalyst of Group 8, 9 or 10 metal of the periodic table. |
