Aqueous dispersions
AssigneeCytec Technology Corp.
InventorsSun-Yi Huang, Louis Rosati, Joseph J. Kozakiewicz
Life of this patent
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Abstract
Aqueous dispersions of cationic water-soluble polymers are provided, as well as processes for making and methods of using the same.
Claims34
A method comprising (a) intermixing an aqueous dispersion of polymers, or aqueous admixture thereof, in an amount effective for dewatering, with a suspension of dispersed solids, and (b) dewatering said suspension of dispersed solids, said aqueous dispersion being comprised of
- (i) a first cationic water-soluble or water-swellable polymer;
- and
- (ii) at least one second water-soluble polymer different from said first polymer;
- and
- (iii) a kosmotropic salt;
- and
- (iv) a chaotropic salt,
- wherein the amounts of said (ii), (iii) and (iv) are such that a homogeneous composition is obtained in the absence of said (ii).
A method comprising (a) intermixing an aqueous dispersion of polymers, or aqueous admixture thereof, in an amount effective for dewatering, with a suspension of dispersed solids, and (b) dewatering said suspension of dispersed solids, said aqueous dispersion being comprised of
- (i) a first cationic water-soluble or water-swellable polymer;
- and
- (ii) at least one second, predominately cationic, water-soluble polymer different from said first polymer;
- and
- (iii) a kosmotropic salt;
- and
- (iv) a chaotropic salt,
- wherein the amounts of said (ii), (iii) and (iv) are such that a homogeneous composition is obtained in the absence of said (ii).
A method comprising (a) intermixing an aqueous dispersion of polymers, or aqueous admixture thereof, in an amount effective for dewatering, with a suspension of dispersed solids, and (b) dewatering said suspension of dispersed solids, said aqueous dispersion being comprised of
- (i) a first cationic water-soluble or water-swellable polymer;
- and
- (ii) at least one second water-soluble polymer different from said first polymer;
- and
- (iii) a kosmotropic salt;
- and
- (iv) an anionic organic salt,
- wherein the amounts of said (ii), (iii) and (iv) are such that a homogeneous composition is obtained in the absence of said (ii).
A method comprising (a) intermixing an aqueous dispersion of polymers, or aqueous admixture thereof, in an amount effective for dewatering, with a suspension of dispersed solids, and (b) dewatering said suspension of dispersed solids, said aqueous dispersion being comprised of
- (i) a first cationic water-soluble or water-swellable polymer;
- and
- (ii) at least one second, predominately cationic, water-soluble polymer different from said first polymer;
- and
- (iii) a kosmotropic salt;
- and
- (iv) an anionic organic salt,
- wherein the amounts of said (ii), (iii) and (iv) are such that a homogeneous composition is obtained in the absence of said (ii).
A method comprising
- (a) intermixing an aqueous dispersion of polymers, or aqueous admixture thereof, in an amount effective for clarification, with oil-containing water to produce clarified water, and (b) separating said clarified water from said oil, said aqueous dispersion being comprised of
- (i) a first cationic water-soluble or water-swellable polymer;
- and
- (ii) at least one second water-soluble polymer different from said first polymer;
- and
- (iii) a kosmotropic salt;
- and
- (iv) a chaotropic salt,
- wherein the amounts of said (ii), (iii), and (iv) are such that a homogeneous composition is obtained in the absence of said (ii).
Dependencies are inferred from the claim text.