High surface area silicate pigment and method for its...

Details High surface area silicate pigment and method for its... High surface area silicate pigment and method for its...

C - Chemistry, Metallurgy

01

B

C01B 33/26 (2006.01) C09C 1/28 (2006.01) C09C 3/06 (2006.01) C09D 7/12 (2006.01) C09D 11/02 (2006.01)

Patent

CA 2334426

An amorphous silicate pigment having a pore volume of at least about 4.0ml/g as measured by mercury intrusion, a BET surface area of at least about 300 m2/g, and a Al2O3 content of about 2.0-10.0 wt.% is provided. The invention can be successfully used in recording media coatings, particularly coatings for recording media used in ink jet printing systems.

L'invention concerne un pigment à base de silicate amorphe, ayant un volume poreux d'au moins 4,0 ml/g environ (détermination par porosimétrie au mercure), une surface BET d'au moins 300 m?2¿/g environ et une teneur en Al¿2?O¿3? comprise entre 2,0 et 10,0 % en poids environ. L'invention peut être utilisée avec succès dans les revêtements de support d'enregistrement, notamment dans les revêtements pour supports d'enregistrement utilisés dans les systèmes d'impression à jet d'encre.

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