| 摘要 |
<p>Organophosphatostannanes of formula: (where Y is halogen or -OR" (where R" is alkyl or aryl), R and R' are opt. substituted hydrocarbon radicals, m is 0-2, n is 1-3, and m + n is 1-3. These compounds act as catalysts for hardening polysiloxanes sep. to give elastomers, giving controllable hardening times. They are prepn. by reacting specific organotin compounds with specific phosphates.</p> |
