PROBLEM TO BE SOLVED: To provide a method for producing a silicone polymer which is liquid at room temperature, has little absorption of ultraviolet rays, is transparent, and has excellent ultraviolet curability. SOLUTION: Compounds 88 to represented by the general formula (1) R1Si (OR2) 3 ... (1) (in the formula, R1 represents a 3-methacryloxypropyl group and R2 represents a hydrocarbon group). 92 mol% and 8 to 12 mol% of the compound represented by the general formula (2) R3Si (OR4) 3 ... (2) (in the formula, R3 represents a methyl group and R4 represents a hydrocarbon group). In the presence of tetramethylammonium hydroxide, isopropyl alcohol was added 0.5 to 1.5 times by weight and methyl isobutyl ketone was added 2.0 to 3.0 times by weight based on the total amount of the silane compound. , 2.5 to 3.3 mol times of water is added and reacted. A silicone polymer having a weight average molecular weight of 2000 to 2600, a silanol group at the end, and a liquid at 5 to 40 ° C. Manufacturing method. [Selection diagram] None
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