Vesiculated polymer particles

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

Reexamination Certificate

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Reexamination Certificate

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07572846

ABSTRACT:
Vesiculated polymer particles and a method of manufacture thereof, are suitable for the beneficial replacement of titanium dioxide pigments and extenders amongst others, and have improved opacity, whiteness, scrub resistance and water resistance due. The manufacturing process exhibits effective control of particle size and particle size distribution.

REFERENCES:
patent: 4321332 (1982-03-01), Beresford et al.
patent: 5972809 (1999-10-01), Martin et al.
patent: 0 307 139 (1989-03-01), None
patent: 0 622 402 (1994-11-01), None
patent: WO 81 01711 (1981-06-01), None

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