C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 220/60 (2006.01)
Patent
CA 2562996
The invention concerns novel high molecular weight associative amphoteric polymers for increasing the viscosity of aqueous solutions, characterized in that they comprise: at least one cationic monomer derived from acrylamide bearing at least one hydrophobic chain of 8 to 30 carbon atoms; 1 to 99.9 mole % of at least one anionic monomer; and 1 to 99 mole % of one or several non-ionic water-soluble monomers. The invention also concerns aqueous solutions containing said polymers and their uses in industry, in particular the oil, paper, water treatment, mining, cosmetics, textile, detergency industries and generally in all industrial techniques using thickened solutions.
La présente invention concerne de nouveaux polymères associatifs et amphotères de haut poids moléculaire destinés à augmenter la viscosité des solutions aqueuses, caractérisés en ce qu'ils comprennent : - au moins un monomère cationique dérivé d'acrylamide portant une chaîne hydrophobe comportant de 8 à 30 carbones - de 1 à 99.9 mol % d'au moins un monomère anionique - et de 1 à 99 mol % d'un ou plusieurs monomères hydrosolubles non ioniques. L'invention se rapporte également aux solutions aqueuses contenant ces polymères et à leurs applications dans l'industrie, notamment du pétrole, du papier, du traitement de l'eau, de l'industrie minière, des cosmétiques, du textile, de la détergence et de manière générale dans toutes les techniques industrielles utilisant des solutions épaissies.
Favero Cedrick
Gaillard Nicolas
Brouillette & Associes/partners
S.p.c.m. Sa
Snf Sas
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