Abstract: Provided are an ultraviolet curable organopolysiloxane composition having a favorable ultraviolet curability; and a cured product thereof that has a favorable adhesiveness. The ultraviolet curable organopolysiloxane composition contains: (A) a compound represented by the following general formula (1) wherein R1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms or an alkoxy group having 1 to 3 carbon atoms, the multiple R1s may be identical to or different from each other, and each R2 independently represents a hydrogen atom, a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms or a triorganosilyl group; and an ultraviolet curable organopolysiloxane.

Abstract: Provided are an ultraviolet curable organopolysiloxane composition having a favorable ultraviolet curability; and a cured product thereof that has a favorable adhesiveness. The ultraviolet curable organopolysiloxane composition contains: (A) a compound represented by the following general formula (1) wherein R1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms or an alkoxy group having 1 to 3 carbon atoms, the multiple R1s may be identical to or different from each other, and each R2 independently represents a hydrogen atom, a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms or a triorganosilyl group; and an ultraviolet curable organopolysiloxane.

Abstract: An organopolysiloxane modified with a lactate silyl at both ends according to the present invention, which is represented by general formula (1) (wherein each of R1, R2 and R3 independently represents an unsubstituted or substituted monovalent hydrocarbon group having 1-10 carbon atoms; m represents an integer of 10 or more; each a independently represents 2 or 3; and X represents an alkylene group having 2-4 carbon atoms or an oxygen atom), is useful as a starting material siloxane for a surface treatment agent for inorganic materials, a coating agent for water repellent treatments, and especially for a room-temperature curable (RTV) silicone rubber composition.

Abstract: Provided is a compound for imparting a thermal plasticity to an organic silicon resin. The compound is a novel vinyl silane compound represented by the following formula (1): wherein A independently represents a divalent hydrocarbon group having 1 to 6 carbon atoms; Y independently represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms.

Abstract: Provided is a compound for imparting a thermal plasticity to an organic silicon resin. The compound is a novel vinyl silane compound represented by the following formula (1): wherein A independently represents a divalent hydrocarbon group having 1 to 6 carbon atoms; Y independently represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms.