Classifications

• • 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
• • 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
  • C08G18/40—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
  • 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
  • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
  • C08G18/72—Polyisocyanates or polyisothiocyanates
  • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
  • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
• • 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
  • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
  • C08G18/72—Polyisocyanates or polyisothiocyanates
  • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
  • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
  • C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
  • C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
  • C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
  • C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
• • 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
  • 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). Used in aqueous formulations, they make it possible to increase the viscosity with a medium shear gradient, while limiting the increase thereof at a low shear rate. Such a compromise results in particular from the implementation of original groups based on alkyl cyclohexylols, to manufacture the associative monomer of these thickeners.
• HEUR Hydrophilic Acid
• the 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, defoamers and finally, at least one thickening agent.
• binders one or more emulsion polymers in the liquid phase
• binders fillers and / or pigments
• a dispersing agent and adjuvants as well.
• various surfactants, coalescing agents, biocides, defoamers and finally, at least one thickening agent are examples of 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.
• Such Macromolecules have a character combining: once introduced into water, the hydrophobic groups are likely to assemble in the form of micellar aggregates. These aggregates are interconnected by the hydrophilic parts of the polymers: there is then formation of a three-dimensional network which causes the increase of the viscosity of the medium.
• associative thickeners there is the class of associative thickeners of the HEUR type (hydrophilically modified Ethylene oxide ethylene oxide or modified Ethylene oxide URethane according to the appropriate acronym). They denote 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.
• HEUR hydrophilically modified Ethylene oxide ethylene oxide or modified Ethylene oxide URethane according to the appropriate acronym.
• EP 1 566 393 describes a HEUR type thickener, one of the essential characteristics of which is the presence of n-butyl-1-octanol, while its hydrophobic groups are based on fatty alcohols containing from 8 to 18 carbon atoms.
• DE 10 206 023001 discloses a HEUR-type associative nonionic thickener comprising a branched linear alcohol.
• EP 1 241 198 discloses polyurethane thickeners comprising a monoalcohol having from 6 to 22 carbon atoms.
• 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.
• 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.
• none of the hydrophobic structures envisaged up to now is satisfactory for increasing the Stormer TM viscosity while limiting the increase in the Brookfield TM viscosity, and thus achieving an optimal compromise between
• the potted aspect, the loading of the tool, and on the other hand the application properties like the tension and the absence of safe splashes.
• alkyl cyclohexylols Such compounds have been identified as surface-active agents and are obtained by hydrogenation of an alkyl phenol. The resulting compounds are referred to as "alkyl cyclohexylols.” 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 present invention consists of water-soluble polyurethanes resulting from the condensation of: a) at least one monomer of formula (I)
• R denotes an alkyl group having from 10 to 15 carbon atoms, preferentially 12 carbon atoms,
• polyurethane is meant a urethane polymer, i.e., a compound produced by the reaction of an isocyanate and an alcohol.
• alkyl denotes a linear or branched hydrocarbon radical of 10 to 15 carbon atoms, such as decyl, undecyl, dodecyl, tridecyl, tetradecyl or pentadecyl.
• 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.
• the monomer of formula (I) has a formula (II):
• R denotes an alkyl group as defined above, that is to say having from 10 to 15 carbon atoms, preferably 12 carbon atoms.
• the monomer a) has a formula (I) or (II) wherein R denotes a group having 12 carbon atoms.
• the monomer a) has a formula (I) or (II) wherein R denotes a group having 15 carbon atoms.
• the Applicant states that the manufacture of these polyurethanes, which belong to the family of thickeners of the HEUR type, is perfectly known to those skilled in the art, who may refer to the teaching of the documents cited earlier in the technological background of the present invention.
• the polyurethanes result from the condensation of two monofunctional alcohols, a polyalkylene glycol and a polyisocyanate.
• one of two monofunctional alcohols has a formula (I) or (II) in which R denotes an alkyl group having 10 to 15 carbon atoms, preferably 12 or 15 carbon atoms, and the other Monofunctional alcohol is of the linear or branched aliphatic alcohol type, having between 6 and 20 carbon atoms, preferably between 10 and 15 carbon atoms.
• the polyurethanes result from the condensation of: a) from 1 to 29% by weight of a monomer of formula (I):
• R denotes an alkyl group having between 10 and 15 carbon atoms, preferably between 12 and 15 carbon atoms,
• the polyurethanes result from the condensation, in particular of a polyalkylene glycol which is polyethylene glycol.
• a polyalkylene glycol which is polyethylene glycol.
• It may be for example a polyethylene glycol whose molecular mass varies between 2,000 g / mol and 20,000 g / mol, for example between 8,000 g / mol and 15,000 g / mol.
• polyethylene glycol with a molecular weight of 10,000 g / mol and 12,000 g / mol.
• the polyurethanes result from the condensation, in particular of a polyisocyanate which is chosen from the group consisting of toluene diisocyanate, toluene diisocyanate dimers, toluene diisocyanate trimers and 1,4-butane diisocyanate.
• a polyisocyanate which is chosen from the group consisting of toluene diisocyanate, toluene diisocyanate dimers, toluene diisocyanate trimers and 1,4-butane diisocyanate.
• a second subject of the present invention relates to a process for preparing a polyurethane according to the invention, said process consisting in a condensation of the various constituents of the polyurethane.
• a third subject of the present invention consists of an aqueous composition comprising a polyurethane according to the present invention.
• said aqueous composition comprises, in addition, water and at least one nonionic surfactant.
• the polyurethane is formulated in water in the presence of at least one nonionic surfactant.
• nonionic surfactant or “nonionic surfactant” is meant a nonionic molecule consisting of at least one hydrophilic part and at least one hydrophobic part.
• said composition comprises several surfactants, for example two, three or four.
• said aqueous composition further comprises at least one additive selected from the group consisting of a biocide, a solvent, an antifoaming agent, a pH regulator, a coalescing agent, and mixtures thereof.
• a 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.
• 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) at a temperature suitable for the desired application conditions (eg a TMFF of 5 ° C for outdoor application).
• TMFF minimum temperature of formation of the film
• MFFT Minimum Film Formation Temperature
• a temperature suitable for the desired application conditions eg a TMFF of 5 ° C for outdoor application.
• the aqueous composition of the present invention consists of:
• At least one other additive selected from the group consisting of a biocide, a solvent, an antifoaming agent, a pH regulator, a coalescing agent and mixtures thereof,
• the aqueous composition of the present invention is a polyurethane as described above, a surfactant, water, a biocide and an antifoam agent.
• the aqueous composition consists of a mixture of 5 to 45% by weight of at least one polyurethane as described above, of 5 to 30% by weight of at least one surfactant, from 25 to 75% by weight of water, from 0.01 to 5% by weight of at least one biocide and from 0.01 to 5% by weight of at least one anti-foaming agent.
• a fourth object of the present invention relates to a method for preparing an aqueous composition according to the invention, said method comprising mixing different constituents of the aqueous composition.
• a fifth object of the present invention is the use of a polyurethane according to the invention or an aqueous composition according to the invention for thickening an aqueous formulation, said formulation being selected from the group consisting of among a paint, a lacquer, a varnish, a paper coating sauce, a cosmetic formulation and a detergent formulation.
• a sixth object of the present invention relates to an aqueous formulation comprising a polyurethane according to the invention or an aqueous composition according to the invention, said formulation being selected from the group consisting of a paint, a lacquer, a varnish, a sauce paper coating, a cosmetic formulation and a detergent formulation.
• the aqueous formulation is a paint and comprises at least one dispersing agent, at least one inorganic filler, at least one binder, at least one biocide, at least one anti-foaming agent and optionally a coalescing agent.
• a final subject of the present invention relates to a process for preparing an aqueous formulation according to the invention, said process consisting in mixing different constituents of the aqueous formulation.
• EXAMPLE 1 This example describes a polyurethane according to the invention, using a compound of formula (II) in which R denotes the linear alkyl group having 12 carbon atoms. We therefore have here a hydrophobic monomer of the alkyl cyclohexylol type having 18 carbon atoms.
• this example also illustrates 4 polyurethanes according to the prior art, using linear fatty alcohols having 12, 14, 16 and 18 carbon atoms.
• this example describes a polyurethane outside the invention, implementing a compound of formula (II) wherein R denotes the linear alkyl group having 9 carbon atoms.
• R denotes the linear alkyl group having 9 carbon atoms.
• All polyurethanes are products which are the result of the condensation of, expressed in% by weight of each of the constituents, 90% of polyethylene glycol of molecular weight by weight equal to 10 000 g / mol, 5% of a completed monomer by a hydrophobic group whose nature will be specified later, and 5% of isophorone diisocyanate.
• This test illustrates a field outside the invention and corresponds to a formulation in water at 30% by dry weight of a polyurethane of molecular weight equal to about 11000 g / mol, wherein the hydrophobic monomer has the formula (II) where R denotes the linear alkyl group having 9 carbon atoms.
• This test illustrates the invention and corresponds to a formulation in water at 30% by dry weight of a polyurethane of molecular weight equal to about 11 000 g / mol, where the hydrophobic monomer has the formula (II), wherein R denotes the linear alkyl group having 12 carbon atoms.
• This test illustrates the prior art and corresponds to a formulation in water at 30% by dry weight of a polyurethane of molecular weight equal to about 11 000 g / mol, wherein the hydrophobic monomer is a linear alcohol having 12% by weight. carbon atoms, sold under the name Nacol TM 12-96 by SASOL TM.
• This test illustrates the prior art and corresponds to a formulation in water at 30% by dry weight of a polyurethane of molecular weight equal to about 11 000 g / mol, wherein the hydrophobic monomer is a linear alcohol having 14% by weight. carbon atoms, sold under the name Nacol TM 14-98 by SASOL TM.
• This test illustrates the prior art and corresponds to a formulation in water at 30% by dry weight of a polyurethane of molecular weight equal to about 11 000 g / mol, wherein the hydrophobic monomer is a linear alcohol having 16% by weight. carbon atoms, marketed under the name Nacol TM 16-95 by SASOL TM.
• This test illustrates the prior art and corresponds to a formulation in water at 30% by dry weight of a polyurethane of molecular weight equal to about 11 000 g / mol, wherein the hydrophobic monomer is a linear alcohol having 18% by weight. carbon atoms, marketed under the name Nacol TM 18-98 by SASOL TM.
• This example illustrates the use of polyurethanes according to the invention and the prior art, as thickening agents of a matte paint.
• composition of said paint is shown in Table 1, the masses of each constituent being indicated in grams.
• the paint is formulated according to methods well known to those skilled in the art. In each test, 0.2% by dry weight of the polymer according to the invention is used, relative to the total weight of the paint formulation, ie approximately 1 kg of formulation as defined below, 6.67 g of an aqueous composition as mentioned above.
• test Nos. 3 and 4 lead to much lower Stormer TM viscosities.
• Tests Nos. 5 and 6 are then best placed in terms of the viscosity at a medium velocity gradient; however, test no. 2 leads to a higher value for a lower Brookfield TM viscosity.
• test No. 1 demonstrates the importance of limiting the carbon number of the hydrophobic monomer according to the invention; with only 15 carbon atoms, the polymer of Test No. 1 is not efficient enough in terms of pure thickening.
• This example illustrates the use of polyurethanes according to the invention and the prior art, as thickening agents of a matte paint.
• composition of said paint is indicated in Table 3, the masses of each constituent being indicated in grams.
• the paint is formulated according to methods well known to those skilled in the art.
• tests # 3 and # 4 lead to lower Stormer TM viscosities.
• Tests 5 and 6 are then best placed from the point of view of viscosity at a medium speed gradient, but for a much higher Brookfield TM viscosity than according to the invention.
• test No. 1 which leads to a low thickening power, demonstrates the interest of limiting the carbon number of the hydrophobic monomer according to the invention.

Landscapes

• 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)
• Compositions Of Macromolecular Compounds (AREA)
• Cosmetics (AREA)
• Detergent Compositions (AREA)

Priority Applications (13)

Applications Claiming Priority (2)

Publications (1)

Family

ID=46420449

Family Applications (1)

Country Status (16)

Cited By (2)

Families Citing this family (6)

Citations (10)

Family Cites Families (12)

• 2011
  • 2011-06-14 FR FR1155156A patent/FR2976580B1/fr not_active Expired - Fee Related
• 2012
  • 2012-06-12 MX MX2013014290A patent/MX337544B/es active IP Right Grant
  • 2012-06-12 AU AU2012270208A patent/AU2012270208B2/en not_active Ceased
  • 2012-06-12 JP JP2014515259A patent/JP6452442B2/ja not_active Expired - Fee Related
  • 2012-06-12 WO PCT/FR2012/051315 patent/WO2012172249A1/fr not_active Ceased
  • 2012-06-12 RU RU2014100913/05A patent/RU2602101C2/ru active
  • 2012-06-12 BR BR112013027437-9A patent/BR112013027437B1/pt not_active IP Right Cessation
  • 2012-06-12 CN CN201280022025.0A patent/CN103517930B/zh not_active Expired - Fee Related
  • 2012-06-12 KR KR1020147000827A patent/KR101960118B1/ko not_active Expired - Fee Related
  • 2012-06-12 SG SG2013084728A patent/SG194987A1/en unknown
  • 2012-06-12 PL PL12731136T patent/PL2721084T3/pl unknown
  • 2012-06-12 ES ES12731136T patent/ES2705925T3/es active Active
  • 2012-06-12 EP EP12731136.3A patent/EP2721084B1/fr active Active
  • 2012-06-12 CA CA2834310A patent/CA2834310C/fr active Active
  • 2012-06-13 US US13/495,080 patent/US8895630B2/en active Active
• 2013
  • 2013-11-11 ZA ZA2013/08462A patent/ZA201308462B/en unknown

Patent Citations (12)

Non-Patent Citations (6)

Also Published As

Similar Documents

Legal Events