| abstract |
The present invention pertains to an ultraviolet-ray-curable organopolysiloxane composition containing: (A) (A-1) a straight-chain organopolysiloxane containing an alkenyl group, and (A-2) a three-dimensional-network-shaped organopolysiloxane resin containing an R 1 2 R 2 SiO 1/2 unit, an R 1 3 SiO 1/2 unit, an SiO 2 unit, and an alkenyl group; (B) an organohydrogenpolysiloxane; (C) a photoactive platinum complex curing catalyst; and (D) an organopolysiloxane oligomer containing an R 1 2 R 2 SiO 1/2 unit or the R 1 2 R 2 SiO 1/2 unit and an R 1 3 R 2 SiO 1/2 unit, also containing an R 1 SiO 3/2 unit, not containing an SiO 2 unit, and also containing an alkenyl group. As a result, this ultraviolet-ray-curable organopolysiloxane composition retains high strength and does extremely well suppressing heat-induced expansion or contraction; hence, it is possible to transfer a pattern and print with high dimensional accuracy. |