Organopolysiloxane and room temperature-curable organopolysiloxane composition containing same

Abstract

An organopolysiloxane according to the present invention, having a structural unit ratio represented by formula (1), provides a room temperature-curable composition that has excellent curability and stability even when a solvent is not used, and that is capable of producing a cured product having high hardness and high transparency. (R1 and R2 each represent an alkyl group having 1-12 carbon atoms or an aryl group having 6-10 carbon atoms; k represents an integer of 1-3; m represents a number of 5-100; n represents 2 or 3; R3, R4, and R5 each represent an alkyl group having 1-12 carbon atoms, an alkenyl group having 2-8 carbon atoms, an aryl group having 6-10 carbon atoms, an aralkyl group having 7-10 carbon atoms, an alkoxy group having 1-4 carbon atoms, or a hydroxy group; and a, b, c, d, e, and f each represent a number satisfying a>0, b>0, c≥0, d>0, e>0, and f≥0, as well as a+b+c+d+e+f=1.)

Dependencies are inferred from the claim text.