HYBRID COPOLYMERS

• US 20110136718A1
• Filed: 12/08/2010
• Published: 06/09/2011
• Est. Priority Date: 07/21/2005
• Status: Abandoned Application

• Current Assignee: Akzo Nobel N.V. (Nouryon BV)
• Original Assignee: Akzo Nobel N.V. (Nouryon BV)
• Inventors: Rodrigues, Klin A., Griffith, Darin K.
• Application Number:
  US12/963,259
• Publication Number:
  US 20110136718A1
• Time in Patent Office: Days
• US Class Current: 510/230
• CPC Class Codes: C02F 1/28 by sorption using ion-exchange C02F1/42; sorbent compositions B01J
• CPC Class Codes: C02F 1/285 using synthetic organic sorbents
• CPC Class Codes: C02F 2103/002 Grey water, e.g. from clothes washers, showers or dishwashers
• CPC Class Codes: C02F 2103/023 Water in cooling circuits
• CPC Class Codes: C02F 2103/08 Seawater, e.g. for desalination
• CPC Class Codes: C02F 2103/18 from the purification of gaseous effluents
• CPC Class Codes: C02F 2103/28 from the paper or cellulose industry
• CPC Class Codes: C02F 2209/09 Viscosity
• CPC Class Codes: C02F 2303/08 Corrosion inhibition
• CPC Class Codes: C02F 2305/04 Surfactants, used as part of a formulation or alone
• CPC Class Codes: C02F 5/10 using organic substances
• CPC Class Codes: C08F 2/38 Polymerisation using regulators, e.g. chain terminating agents , e.g. telomerisation
• CPC Class Codes: C08F 220/06 Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
• CPC Class Codes: C08F 220/585 and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
• CPC Class Codes: C08F 251/00 Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
• CPC Class Codes: C08F 265/00 Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
• CPC Class Codes: C08F 265/04 on to polymers of esters
• CPC Class Codes: C08F 265/10 on to polymers of amides or imides
• CPC Class Codes: C08F 291/00 Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 51/003 : grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds C08L51/04, C08L51/06 take precedence
• CPC Class Codes: C11D 3/222 : Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• CPC Class Codes: C11D 3/3757 : (Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
• CPC Class Codes: C11D 3/378 : (Co)polymerised monomers containing sulfur, e.g. sulfonate

Abstract

Hybrid copolymers for use as anti-scalant and dispersant. The polymers are useful in compositions used in aqueous systems. The polymers include at least one synthetic monomeric constituent that is chain terminated by a naturally occurring hydroxyl containing moiety. A process for preparing these hybrid copolymers is also provided.

Claims

1-17. -17. (canceled)

18. A hybrid copolymer comprising:

a synthetic polymer comprising at least one hydrophilic acid monomeric unit wherein the at least one hydrophilic acid monomeric unit is acrylic acid or methacrylate acid or salts thereof or mixtures thereof; and

a naturally derived hydroxyl containing chain transfer agent as the end group, wherein the naturally derived hydroxyl containing chain transfer agent is a monosaccharide, disaccharide, oligosaccharide or polysaccharide.

19. The copolymer of claim 18 wherein the at least one hydrophilic acid monomeric unit further comprises maleic acid, itaconic acid or salts thereof or mixtures thereof.

20. The copolymer of claim 18 wherein the at least one hydrophilic acid monomeric unit further comprises 2-acrylamido-2-methyl propane sulfonic acid or a salt thereof.

21. The copolymer of claim 18 wherein the synthetic polymer comprises a hydrophobic monomeric unit and a hydrophilic acid monomeric unit.

22. The copolymer of claim 21 wherein the hydrophobic monomeric unit is chosen from the group consisting of styrene, a-methyl styrene, methyl methacrylate, methyl acrylate, 2-ethylhexyl acrylate, octyl acrylate, lauryl acrylate, stearyl acrylate, 2-ethylhexyl methacrylate, octyl methacrylate, lauryl methacrylate, stearyl methacrylate, behenyl methacrylate and octyl acrylamide.

23. The copolymer of claim 18 wherein the polysaccharide is chosen from the group consisting of starch, cellulose, pectin, alginate, gellan, gums and modified starch.

24. The copolymer of claim 23 wherein the starch is chosen from the group consisting of maize, potato, tapioca, wheat, rice, pea, sago, oat, barley, rye and amaranth.

25. The copolymer of claim 24 wherein the starch is chosen from the group consisting of waxy starch, high amylose starch, maltodextrins and oxidized starch.

33. A method for dispersing particulates in an aqueous system, the method comprising adding to the aqueous system the hybrid copolymer according to claim 18 in an amount sufficient to disperse the particulates.

34. The method of dispersing particulates of claim 33 wherein the particulates are minerals, clays, salts, metallic ores, metallic oxides, dirt, soils, talc, pigments, titanium dioxide, mica, silica, silicates, carbon black, iron oxide, kaolin clay, calcium carbonate, synthetic calcium carbonates, precipitated calcium carbonate, ground calcium carbonate, precipitated silica, kaolin clay or combinations thereof.

35. The copolymer of claim 18 wherein the synthetic polymer is present at between 25 and 99.9 percent by weight of the copolymer.

26. A formulation comprising:

(a) a hybrid copolymer comprising;

(i) a synthetic polymer comprising at least one hydrophilic acid monomeric unit wherein the at least one hydrophilic acid monomeric unit is acrylic acid or a salt thereof, and

(ii) a naturally derived hydroxyl containing chain transfer agent as the end group, wherein the naturally derived hydroxyl containing chain transfer agent is a monosaccharide, disaccharide, oligosaccharide or polysaccharide; and

(b) at least one adjunct ingredient.

27. The formulation of claim 26 wherein the formulation is selected from the group consisting of a cleaning, superabsorbent, fiberglass binder, rheology modifier, oil field, water treatment, dispersant and a cement formulation.

28. The formulation of claim 27 wherein the cleaning formulation is a detergent, fabric cleaner, automatic dishwashing detergent, glass cleaner, hard surface cleaner or a laundry detergent.

29. The formulation of claim 28 wherein the automatic dishwashing detergent is a non-phosphate formulation.

30. The formulation of claim 26 wherein the adjunct ingredient is selected from the group consisting of water, surfactants, builders, phosphates, sodium carbonate, citrates, enzymes, buffers, perfumes, anti-foam agents, ion exchangers, alkalis, anti-redeposition materials, optical brighteners, fragrances, dyes, fillers, chelating agents, fabric whiteners, brighteners, sudsing control agents, solvents, hydrotropes, bleaching agents, bleach precursors, buffering agents, soil removal agents, soil release agents, fabric softening agent, opacifiers, water treatment chemicals, corrosion inhibitors, orthophosphates, zinc compounds, tolyltriazole, minerals, clays, salts, metallic ores, metallic oxides, talc, pigments, titanium dioxide, mica, silica, silicates, carbon black, iron oxide, kaolin clay, modified kaolin clays, calcium carbonate, phosphonates, synthetic calcium carbonates, fiberglass, cement and aluminum oxide.

31. The method of cleaning of claim 30 wherein the adjunct ingredient is selected from the group consisting of water, surfactants, builders, phosphates, sodium carbonate, citrates, enzymes, buffers, perfumes, anti-foam agents, ion exchangers, alkalies, anticorrosion materials, anti-redeposition materials, optical brighteners, fragrances, dyes, fillers, chelating agents, fabric whiteners, brighteners, sudsing control agents, solvents, hydrotropes, bleaching agents, bleach precursors, buffering agents, soil removal agents, soil release agents, phosphonates, fabric softening agents and opacifiers.

32. The method of controlling scale of claim 31 wherein the scale controlled is carbonate, sulfate, phosphate or silicate based scales.

36. A hybrid copolymer formed by combining at least one hydrophilic acid monomer with a solution of a naturally derived hydroxyl containing chain transfer agent and an initiator that is not a metal based redox system at a temperature effective to activate the initiator, wherein the at least one hydrophilic acid monomer is acrylic acid, methacrylic acid or salts thereof or mixtures thereof, and wherein the naturally derived hydroxyl containing chain transfer agent is a monosaccharide, disaccharide, oligosaccharide or polysaccharide.

37. The hybrid copolymer of claim 36 wherein the initiator is persulfate.

38. The hybrid copolymer of claim 36 wherein the at least one hydrophilic acid monome further comprises maleic acid, itaconic acid or salts thereof or mixtures thereof.

39. The hybrid copolymer of claim 36 wherein the at least one hydrophilic acid monomer further comprises 2-acrylamido-2-methyl propane sulfonic acid or a salt thereof.