Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/2805—Compounds having only one group containing active hydrogen
  • C08G18/2815—Monohydroxy compounds
  • C08G18/283—Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/2805—Compounds having only one group containing active hydrogen
  • C08G18/2815—Monohydroxy compounds
  • C08G18/282—Alkanols, cycloalkanols or arylalkanols including terpenealcohols
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/2805—Compounds having only one group containing active hydrogen
  • C08G18/2815—Monohydroxy compounds
  • C08G18/282—Alkanols, cycloalkanols or arylalkanols including terpenealcohols
  • C08G18/2825—Alkanols, cycloalkanols or arylalkanols including terpenealcohols having at least 6 carbon atoms
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/2805—Compounds having only one group containing active hydrogen
  • C08G18/2815—Monohydroxy compounds
  • C08G18/283—Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds
  • C08G18/2835—Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds having less than 5 ether groups
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/2805—Compounds having only one group containing active hydrogen
  • C08G18/288—Compounds containing at least one heteroatom other than oxygen or nitrogen
  • C08G18/289—Compounds containing at least one heteroatom other than oxygen or nitrogen containing silicon
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/40—High-molecular-weight compounds
  • C08G18/48—Polyethers
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
  • C08G18/00—Polymeric products of isocyanates or isothiocyanates
  • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
  • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
  • C08G18/40—High-molecular-weight compounds
  • C08G18/48—Polyethers
  • C08G18/4833—Polyethers containing oxyethylene units
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
  • C08L75/04—Polyurethanes
  • C08L75/08—Polyurethanes from polyethers
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
  • C09D175/04—Polyurethanes
  • C09D175/08—Polyurethanes from polyethers
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
  • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
  • C09D7/40—Additives
  • C09D7/43—Thickening agents

Definitions

• the present invention relates to novel associative thickeners belonging to the category of HEUR (Hydrophobically Modified Ethylene Oxide Ethylene Oxide Urethane). These products contain an original associative monomer based on alkoxylated alkyl cyclohexylols. Their thickening power is equal to or greater than that provided by HEUR associative thickeners of the prior art containing grafted alkyl phenols. There is therefore an effective substitute product free of alkyl phenols, which corresponds to the current market demand.
• HEUR Hydrophilic acid
• aqueous paint formulations containing mineral fillers consist of an aqueous phase, one or more emulsion polymers in the liquid phase, called binders, fillers and / or pigments, a dispersing agent and adjuvants as well. various surfactants, coalescing agents, biocides, antifoams and finally, at least one thickening agent.
• the latter makes it possible to control the rheology of the aqueous formulations into which it is introduced, and in particular aqueous paints, both at the stage of their manufacture, during their transport, their storage or during their implementation.
• the diversity of practical constraints at each of these stages refers to a multiplicity of different rheological behaviors.
• copolymers resulting from the synthesis between a compound of the polyalkylene glycol type, a polyisocyanate, and a so-called "associative" monomer or condensate of the alkyl, aryl or arylalkyl type constituted by a hydrophobic end group.
• the document EP 1 566 393 describes a thickener of the HEUR type, one of the essential characteristics of which is the presence of n-butyl-1-octanol, while its hydrophobic groups are based on fatty alcohols having from 8 to 18 carbon atoms. carbon.
• the document EP 1 013 264 describes a polyurethane thickener for cosmetic formulations, having an associative monomer functionalized with a hydrophobic group that can be linear or branched, but preferably linear and having from 12 to 24 carbon atoms.
• the document WO 94/06840 proposes an associative thickener of the HEUR type, characterized by a certain density of hydrophobic groups, said groups being linear alkyl chains having from 8 to 22 carbon atoms.
• EP 1 584 331 proposes a hydrophobic end group having from 6 to 34 carbon atoms for the associative monomer. To specifically increase Brookfield TM viscosity.
• EP 0 639 595 proposes linear hydrophobic groups having from 4 to 36 carbon atoms.
• WO 02/102868 also refers to linear structures for the associative monomer. Independently of the particular rheological profiles brought about by the variations described above, the HEURs whose thickening power is the most marked still remain molecules having alkyl phenols grafted on their associative monomer.
• One of the representative products of this technology is the Acrysol TM SCT-275 developed by DOW TM.
• alkyl phenols are today widely suspected of being carcinogenic and dangerous for reproduction; still tolerated in the paint industry, they remain nonetheless in the crosshairs of legislative institutions, especially European ones.
• n and n are integers less than 150, at least one of which is non-zero,
• a and B denote alkyl groups different from one another, and having
• the group AO denoting preferably ethylene oxide and the group BO preferably denoting propylene oxide,
• R denotes a linear or branched alkyl group containing from 8 to 20 carbon atoms, preferentially a linear alkyl group having from 9 to 12 carbon atoms.
• Such compounds have been identified as surfactants and are obtained by alkoxylation of an alkyl phenol and hydrogenation of the product obtained.
• the resulting compounds are referred to as "cyclohexylolsalkoxylated alkyls". It is important to add that the final structure is not that of an alkyl phenol, and that the resulting product will not be categorized as such.
• a first object of the invention consists of water-soluble polyurethanes resulting from the condensation of: a) at least one polyalkylene glycol,
• n and n are integers less than 150, at least one of which is non-zero,
• a and B denote alkyl groups different from each other and having from 2 to 4 carbon atoms, the group AO preferably denoting ethylene oxide and the group BO preferably denoting propylene oxide,
• R denotes a linear or branched alkyl group containing from 8 to 20 carbon atoms, preferentially a linear alkyl group having from 9 to 12 carbon atoms.
• polyalkylene glycol is meant a polymer of an alkylene glycol derived from an olefinic oxide.
• the polyalkylene glycol according to the present invention is for example polyethylene glycol, polypropylene glycol, polybutylene glycol or a polyalkylene glycol containing a proportion of ethylene-oxy group and / or a proportion of propylene-oxy group and / or a proportion of group butyleneoxy.
• the polyalkylene glycol according to the present invention may for example comprise a major proportion of ethylene-oxy group in combination with a secondary proportion of propylene-oxy group.
• alkylene glycol polymer examples include: polyalkylene glycols having an average molecular weight of 1,000, 4,000, 6,000, 10,000 and 20,000 g / mol (in the case of polyethylene glycol called PEG-1,000, PEG-4 000, PEG-6000, PEG 10,000, PEG 20,000); polyethylene polypropylene glycols having a percentage of ethylene oxide of between 20 and 80% by weight and a percentage of propylene oxide of between 20 and 80% by weight.
• these polyurethanes result from the condensation of, expressed in% by weight of each of the monomers, the sum of these% being equal to 100%: a) from 90% to 99.5% d at least one polyalkylene glycol,
• the constituent polyylakylene glycol of the polyurethane is polyethylene glycol.
• it is a polyethylene glycol with a weight-average molecular weight of between 2,000 g / mole and 20,000 g / mole, for example between 8,000 g / mole and 15,000 g / mole. g / mole, or for example between 8000 g / mole and 12000 g / mole.
• the polyisocyanate constituting the polyurethane according to the invention is chosen from toluene diisocyanate and its dimers and trimers, 1,4-butane diisocyanate, 1,6-hexane diisocyanate, isophorone diisocyanate, 1,3- and 1,4-cyclohexane diisocyanate, 4,4'diisocyanatodicyclohexylmethane, 1-methyl-2,4-diisocyanatocyclohexane and its mixture with 1-methyl-2,6- diisocyanatocyclohexane, the biuret of hexamethylene diisocyanate and its dimers and trimers and mixtures thereof.
• a second subject of the present invention consists of aqueous compositions containing water, at least one polyurethane according to the invention, as well as at least one surfactant, and optionally at least one additive chosen from a biocide, a solvent an antifoam, a pH regulator, a coalescing agent or mixtures thereof.
• Biocide means a chemical substance intended to destroy, repel or render harmless harmful organisms, to prevent their action or to combat them in any other way, by chemical or biological action.
• surfactant or “surfactant” is meant a nonionic molecule consisting of at least one hydrophilic part and at least one hydrophobic part.
• antifoaming agent is meant a substance or formulation intended to destroy air bubbles in a homogeneous or heterogeneous liquid medium (or on its surface) or to prevent their formation.
• pH regulator or “pH regulating agent” is meant a chemical compound which makes it possible to adjust the pH to the expected value.
• the pH regulating agent may increase the pH; this is the case of bases, such as NaOH.
• the pH regulating agent can decrease the pH; this is the case of acids.
• coalescing agent an agent used in paints which makes it possible to lower the minimum temperature of formation of the film (TMFF or MFFT for Minimum Film Formation Temperature) of paint at a temperature adapted to the conditions of desired application ( s) (eg a TMFF of 5 ° C for outdoor application).
• a coalescent agent for example, mention may be made of propylene glycol, butyl glycol, 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate or 2,2,4-trimethyl- 1,3-pentanediol diisobutyrate.
• the aqueous compositions of the invention contain, expressed in% by weight of each of their constituents, the sum of these% being equal to 100%: 1) 5% to 45% of at least one polyurethane according to the invention,
• At least one additive selected from a biocide, a solvent, an antifoam, a pH regulator, a coalescing agent and mixtures thereof.
• Another object of the present invention is the use of said polyurethanes and said compositions as thickeners in aqueous formulations, said formulations being chosen, for example, from aqueous paints, lacquers, varnishes, paper coating coatings, cosmetic or detergent formulations.
• aqueous formulations containing the thickeners or polyurethanes and the compositions according to the invention, said formulations being for example chosen from aqueous paints, lacquers, varnishes, paper coating coatings, formulations cosmetics or detergents.
• a final object of the present invention is a process for preparing a polyurethane according to the invention consisting of a condensation of its various constituents.
• This example illustrates the manufacture of an aqueous paint, in which a thickener of the prior art containing an alkyl phenol having 15 carbon atoms is used.
• carbon and a thickener according to the invention, the group R is a linear alkyl chain having 9 carbon atoms: the corresponding hydrophobic group therefore contains 15 carbon atoms.
• EO is ethylene oxide
• n 25
• R is the alkyl phenol group having 15 carbon atoms.
• the pH is adjusted with ammonia (28%) to a value between 8.6 and 8.9.
• ammonia 28%) to a value between 8.6 and 8.9.
• the Brookfield TM viscosities are measured at 10 and 100 rpm. and ⁇ ) and Stormer TM ( ⁇ 8 ) paint.

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Polymers & Plastics (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Materials Engineering (AREA)
• Wood Science & Technology (AREA)
• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Polyurethanes Or Polyureas (AREA)
• Paints Or Removers (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Macromonomer-Based Addition Polymer (AREA)

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Citations (6)

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• 2011
  • 2011-11-18 FR FR1103521A patent/FR2982863B1/fr active Active
• 2012
  • 2012-10-30 CN CN201280055297.0A patent/CN103930459B/zh not_active Expired - Fee Related
  • 2012-10-30 EP EP12794404.9A patent/EP2780386B1/fr active Active
  • 2012-10-30 KR KR1020147013880A patent/KR101939868B1/ko not_active Expired - Fee Related
  • 2012-10-30 WO PCT/FR2012/052503 patent/WO2013072592A2/fr not_active Ceased
  • 2012-10-30 BR BR112014010188A patent/BR112014010188A8/pt not_active Application Discontinuation
  • 2012-10-30 JP JP2014541727A patent/JP6047173B2/ja not_active Expired - Fee Related
  • 2012-10-30 DK DK12794404.9T patent/DK2780386T3/en active
  • 2012-10-30 PL PL12794404T patent/PL2780386T3/pl unknown
  • 2012-10-30 ES ES12794404.9T patent/ES2646496T3/es active Active
  • 2012-11-08 US US13/671,736 patent/US9273176B2/en active Active

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