C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 121/02 (2006.01) C08J 3/03 (2006.01) C08K 3/22 (2006.01) C09D 7/00 (2006.01)
Patent
CA 2174629
A latex composition comprising, as a rheology modifier, an effective amount of a boehmite alumina having a crystal size (020 plane) of less than about 60 Angstroms and a surface area, when calcined to gamma phase, of greater than approximately 200 m2/g, the boehmite alumina being present in an amount effective to obtain the desired rheological properties of the composition.
L'invention concerne une composition de latex contenant une dose efficace d'alumine de boehmite faisant office de modificateur rhéologique et présentant une taille de cristaux (plan 020) de moins de 60 angström et une surface cristalline, après calcination jusqu'à la phase gamma, de plus de 200 m?2¿/g, la teneur en alumine de boehmite étant suffisante pour conférer à la composition les propriétés rhéologiques voulues.
Beggs Ronald L.
Elsik Curtis M.
Condea Vista Company
Kirby Eades Gale Baker
LandOfFree
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