| abstract |
The disclosed embodiments relate to ultraviolet curable polysiloxane compositions, cured products thereof, and methods of use. Various embodiments provide a shear thinning ultraviolet curable polysiloxane composition. The composition may include (A) a mercapto-functional polyorganosiloxane having the following unit formula [(CH 3 ) 3 SiO 1/2 ] x [(CH 3 ) 2 SiO] y [R (CH 3 ) SiO] z , where x is about 0.01 to about 0.1, y is about 0 to about 0.94, z is about 0.05 to about 0.99, and each occurrence of R is independently a mercapto (C 1-30 ) hydrocarbyl group. The composition may include (B) at least one of the following: (B1) a polyorganosiloxane comprising at least two aliphatic unsaturated carbon-carbon bonds, and (B2) an organic molecule comprising at least two Aliphatic unsaturated carbon-carbon bond; the composition may include (C) a filler. The composition may also include (D) a photoinitiator. |