| 摘要 |
<p>A polysiloxane resin composition includes a blend of silanols, colloidal silica, an ultraviolet-absorbing material, and a dye for correcting the color of a film formed from the resin composition. The silanols include a silanol from the group having the formula RwSi(OH)x or RySi(OR')z where w, x, y, and z = 2 or 3, and R and R' are organic radicals, silanol from the group having the formula R''Si(OR''')3 where R''' is a hydrogen atom or an alkyl radical of 1 to 2 carbon atoms and R'' is an organic radical containing a crosslinking site. The resin may be cured at 420 °F. The ultraviolet-absorbing material may be a benzophenone, a benzotriazole, or a benzothiazole. A process for forming the resin composition includes reacting the silanols and the ultraviolet-absorbing material under continuous agitation for about six hours.</p> |
