| abstract |
The present invention is an addition hardening polysiloxane composition, which contains: (A) organopolysiloxane having at least two aliphatic unsaturated hydrocarbon groups in one molecule, (B) organohydrogen polysiloxane : The ratio of the number of Si-H groups to the total number of aliphatic unsaturated hydrocarbon groups in the component (A) becomes 0.5-5, (C) an organic compound containing a platinum group metal catalyst or Macromolecule compound is used as the core material, and the three-dimensional crosslinked macromolecule compound formed by polymerizing at least one polyfunctional monomer is used as the microcapsule structure of the wall material, and the above-mentioned organic compound or polymer containing platinum group metal catalyst Hydrosilylation catalyst particles with a dynamic viscosity of 10～100,000mm 2 /s at 25°C: effective amount. |