C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 3/04 (2006.01) B01F 17/00 (2006.01) C09C 1/02 (2006.01)
Patent
CA 2394791
The invention concerns the use of water soluble homopolymers and/or copolymers of acrylic acid with one or several acrylic, vinyl or allyl monomers as dispersion agents of aqueous suspension of mineral particles derived from a mechanical and/or thermal upgrading step following a wet-process grinding step not using dispersant and with low dry-matter concentration. The invention also concerns said aqueous suspensions and their uses in paper making, paint, fillers for rubber and synthetic resins, detergent and cleaning formulations, ceramics, drilling fluids, cements, plasters and other uses in civil engineering, the building sector and public works.
L'invention concerne l'utilisation d'homopolymères et/ou copolymères hydrosolubles de l'acide acrylique avec un ou plusieurs monomères acryliques, vinyliques ou allyliques comme agent de dispersion de suspension aqueuse de particules minérales issues d'une étape de reconcentration mécanique et/ou thermique consécutive à une étape de broyage par voie humide sans usage de dispersant et faiblement concentrée en matière sèche. L'invention concerne également lesdites suspensions aqueuses ainsi que leurs utilisations dans les domaines du papier, de la peinture, des charges pour caoutchoucs et résines synthétiques, des formulations détergentes et nettoyantes, la céramique, les fluides de forage, les ciments, les plâtres et autres domaines d'application du génie civil, du bâtiment et des travaux publics.
Jacquemet Christian
Mongoin Jacques
Suau Jean-Marc
Coatex S.a.s.
Robic
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