Treated titanium dioxide

Details Treated titanium dioxide Treated titanium dioxide

1997-07-31

1999-06-08

Green, Anthony

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106438, 106439, 106442, 106443, 106445, 106446, 106447, 106448, 106449, C09C 136, C09C 310

Patent

active

059102136

ABSTRACT:
A pigmentary material comprises particulate titanium dioxide the particles of which have been treated with a polymeric hindered amine stabiliser. The stabiliser is a polymer having a main chain substantially free of acidic groups and having hindered amine stabilising groups. The stabilising groups comprise at least 35 per cent by weight of the polymer. Preferably, the titanium dioxide particles are also treated with an organic compound such as a polyhydric alcohol, an alkanolamine, a polysiloxane or a fatty acid.

REFERENCES:
patent: 4752340 (1988-06-01), Brand et al.
patent: 4935063 (1990-06-01), Costanzi et al.
patent: 5158998 (1992-10-01), Neri et al.

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