| abstract |
An object of the present invention is to provide a polysiloxane-based composition having particularly high heat resistance and excellent moldability. A flowable liquid or solid polysiloxane composition comprising at least one of the following components A and at least one component B: R 1 SiO3 / 2 [A] R 2 R 3 SiO2 / 2 [B] (Here, R 1 , R 2 and R 3 are hydrocarbon groups or hydrocarbon groups containing an aromatic ring, which may be different or the same) The polysiloxane-based composition can be adjusted in viscosity to a viscosity that enables operations such as molding, coating or mixing solid components other than A and B by heating, and then heat-treated at a high temperature to obtain a cured product. thing. [Selection figure] None |