PROBLEM TO BE SOLVED: To provide a plate-like powder for cosmetic compositions, which effectively enhances moldability and impact resistance of a solid powdery cosmetic composition.SOLUTION: This invention relates to a plate-like powder for cosmetic compositions, which is surface-treated with a silicone gel, in which the silicone gel is obtained by a hydrolyzing and condensing an organopolysiloxane having reactive opposite ends, shown in the following formula (1), and a cross-linking agent comprising at least one of a silane coupling agent of the following formula (2) having two or more hydrolyzable groups per one molecule and a reactive organopolysiloxane having the following formula (3). The silicone gel has a finely three-dimensional crosslinking structure of the diorganopolysiloxane, in which in the silicone gel, the distortion rate at 25°C is 17%, a complex modulus at a shear frequency of 4 Hz measured by the dynamic viscoelasticity is 3,000 to 100,000 Pa, a loss coefficient tanδ is 1.0 to 2.5, and a value thereof measured with a durometer type AO is 0.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】固形粉末化粧料の成型性や耐衝撃性を高める効果を有する化粧料用板状粉体の提供。【解決手段】シリコーンゲルで表面処理したシリコーンゲル表面処理化粧料用板状粉体であって、前記シリコーンゲルが下記式(1)で示される両末端反応性ジオルガノポリシロキサンと、下記式(2)の1分子中に2つ以上の加水分解性基を有するシランカップリング剤と下記式(3)の反応性オルガノポリシロキサンの少なくとも1種類からなる架橋剤とを加水分解・縮合反応させたシリコーンゲル。前記シリコーンゲルは前記ジオルガノポリシロキサンの微3次元架橋構造を有し、前記シリコーンゲルが25℃で歪み率17%、剪断周波数4Hzの動的粘弾性測定による複素弾性率が3,000~100,000Paで損失係数tanδが1.0~2.5、デュロメータタイプAOにより測定した前記シリコーンゲルの測定値は0である、シリコーンゲル表面処理化粧料用板状粉体。【選択図】なし
