Method for producing micron sized silicone rubber particles
AssigneeNex Press Solutions LLC
InventorsStephen V. Davis, Jerry A. Pickering, Nataly Boulatnikov
Life of this patent
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Abstract
A method for preparing silicone particles having an average particle size of 6 microns or less, said method comprising the following steps. First, a multifinctional vinyl terminated polysiloxane is mixed with a hydride terminated polysiloxane, surfactant, and polymerization catalyst under ambient conditions. This mixture is then dispersed in water under ambient conditions. The dispersion is the heated to cure the silicone. Afterwards the dispersion is broken and the particles are washed.
Claims3
A method for preparing silicone particles having an average particle size of 6 microns or less, said method comprising:
- (a) mixing a multifunctional vinyl terminated polysiloxane with a hydride terminated polysiloxane, surfactant, and polymerization catalyst under ambient conditions;
- (b) dispersing the mixture in water under ambient conditions;
- (c) heating the dispersion to a temperature sufficient to cure the silicone;
- (d) breaking the dispersion;
- and
- (e) washing and recovering the particles.
Dependencies are inferred from the claim text.