| abstract |
(57) [Summary] (Revised) [Solution] (A) It has two or more OH groups at its terminal, and has the following formula (R 2 SiO 2/2 ) m (RSiO 3/2 ) n (where R Represents a monovalent hydrocarbon group, m is an integer of 2 or more, and n is 1 to 5), and 100: 0 to 100: 150 (polymerization) with an organopolysiloxane or α, ω-dihydroxyorganopolysiloxane. Ratio) mixture 100 parts by weight, (B) an organosilicon compound having two or more hydrolyzable groups selected from an alkoxy group, an amino group and the like in one molecule or a partial hydrolyzate thereof 1 to 30 Parts by weight, (C) calcium carbonate treated with a treating agent A room temperature curable organopolysiloxane composition comprising 5 to 100 parts by weight. [Effect] In addition to excellent storage stability, it gives a cured product with excellent adhesion to adherends, especially surface-treated aluminum materials, and excellent water and heat resistance adhesion, and is particularly suitable for working joints. is there. |