Importance

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Abstract

There is provide an addition-curable silicone composition from which a silicone cured product having excellent adhesiveness and external appearance, being able to protect metal, in particular, silver, from corrosion, and having less shrinkage and change in hardness due to heat, is obtained. The addition-curable silicone composition contains: 100 parts by mass of a polyorganosiloxane having alkenyl groups; an amount of a polyorganohydrogensiloxane such that an amount of Si—H groups is 0.9 to 3.0 mol relative to 1 mol of the alkenyl groups; a catalyst amount of a hydrosilylation reaction catalyst; 0.01 to 10 parts of an adhesiveness imparting agent; and 0.001 to 0.015 parts by mass, in terms of metal atoms of (R³COO)_kM (where M is Ce, Fe, Cr, La, Nd, Pr or Sm, k is 2, 3 or 4, and R³ represents a substituted or unsubstituted hydrocarbon group having 4 to 17 carbon atoms).

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First Claim