| 摘要 |
The objective of the present invention is to provide an addition-cured silicone resin composition having superior interface adhesiveness, storage stability, and transparency. The objective of the present invention is also to provide: an addition-cured silicone resin curing product resulting from using the addition-cured silicone resin composition; and an optical semiconductor element sealing body. The present invention is an addition-cured silicone resin composition containing an addition-cured silicone resin composition and an adhesiveness-imparting agent, wherein the addition-cured silicone resin composition has a refractive index of 1.35-1.45, and the adhesiveness-imparting agent contains a compound having a refractive index of 1.35-1.45 and having a structural unit represented by formula (1-3) and/or a structural unit represented by formula (1-4) between a structural unit represented by formula (1-1) and a structural unit represented by formula (1-2). In formula (1-1) and formula (1-2), R1a each independently represent an alkyl group, a cycloalkyl group, an aryl group, or an aralkyl group. In formula (1-3) and formula (1-4), R1b each independently represent an alkyl group having 1-18 carbon atoms, a cycloalkyl group, an aryl group, or an aralkyl group. In formula (1-3), m is an integer from 1 to 50, and in formula (1-4), n is an integer from 1 to 1500. In formulae (1-1) to (1-3), A each independently represent an alkyl group having 1-18 carbon atoms, a cycloalkyl group, an aryl group, an aralkyl group, or a group represented by formula (2). However, in formulae (1-1) to (1-3), at least one A is a group represented by formula (2). In formula (2): R2a represents an aralkyl group having 1-8 carbon atoms of which a subset of carbon atoms excepting the carbon atoms bonded to silicon atoms may be substituted with an oxygen atom; R2b each independently represent an alkylene group having 1-3 carbon atoms; R3 each independently represent an alkylene group having 1-3 carbon atoms; and R4 each independently represent a hydrogen group, an alkyl group having 1-3 carbon atoms, an alkyl group having 1-3 carbon atoms and having an OH group, or a halogeno group. In formula (2), x is an integer from 0 to 2. |
