Back to results
US 5,326,803 AGranted
Organohydrogen polysiloxane coated phosphites
AssigneeGeneral Electric Company
InventorsRoger W. Avakian, James A. Mahood
Life of this patent
Estimating the term…
Abstract
An organic phosphite composition is provided comprising organic phosphite particles having organic phosphite cores coated with an organic hydrogen polysiloxane. The phosphite particles exhibit high levels of resistance to hydrolysis and are useful as antioxidant additives for thermoplastic compositions.
Claims18
An organic phosphite composition comprising:
- a an organic phosphite particle comprising
- i) a solid organic phosphite core, and
- ii) an organohydrogen polysiloxane coating attached to said core, said coating protecting said phosphite core from moisture.
An organic phosphite particle exhibiting enhanced hydrolytic stability, said particle comprising:
- i) a solid organic phosphite core, and
- ii) an organohydrogen polysiloxane coating surrounding said core.
A composition comprising
- (a) an organic phosphite, and
- (b) an amount of an organohydrogen polysiloxane sufficient to improve the hydrolytic stability of said phosphite.
Dependencies are inferred from the claim text.