Patentes
Aluminum Phosphate Or Polyphosphate Particles For Use As Pigments In Paints And Method Of Making Same
Autor
Galembeck Fernando [br]
De Brito Joao [br]
Institución
Resumen
An aluminum phosphate or polyphosphate-based pigment product is made by a process comprising contacting phosphoric acid with aluminum sulfate and an alkaline solution to produce an aluminum phosphate based product; and optionally calcining the aluminum phosphate based product at an elevated temperature, wherein the process is substantially free of an organic acid. The aluminum phosphate or polyphosphate-based pigment is amorphous. The amorphous aluminum phosphate or polyphosphate characterized by a bulk density of less than 2.30 grams per cubic centimeter and a phosphorus to aluminum mole ratio of greater than 0.8. The composition is useful in paints and as a substitute for titanium dioxide US2010179265 (A1) C08K3/32 C09C1/40 C01B25/36 C09C3/04
US20100705293 C08K3/32 C09C1/40 C01B25/36 C09C3/04