EP4536751A1 - Composition à base d'un composant polymérisable et d'un additif thixotropique - Google Patents
Composition à base d'un composant polymérisable et d'un additif thixotropiqueInfo
- Publication number
- EP4536751A1 EP4536751A1 EP23731267.3A EP23731267A EP4536751A1 EP 4536751 A1 EP4536751 A1 EP 4536751A1 EP 23731267 A EP23731267 A EP 23731267A EP 4536751 A1 EP4536751 A1 EP 4536751A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- meth
- acrylate
- group
- component
- formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- 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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
- C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
- C08F220/282—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing two or more oxygen atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/103—Esters of polyhydric alcohols or polyhydric phenols of trialcohols, e.g. trimethylolpropane tri(meth)acrylate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/12—Esters of phenols or saturated alcohols
- C08F222/22—Esters containing nitrogen
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- C—CHEMISTRY; METALLURGY
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/067—Polyurethanes; Polyureas
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/0852—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of solvents for the polymers the solvents being organic
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/225—Catalysts containing metal compounds of alkali or alkaline earth metals
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- 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
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- 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
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- 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
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- 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
- C08G18/284—Compounds containing ester groups, e.g. oxyalkylated monocarboxylic acids
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- 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
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- C08G18/3237—Polyamines aromatic
- C08G18/324—Polyamines aromatic containing only one aromatic ring
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- 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
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- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
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- C08G18/80—Masked polyisocyanates
- C08G18/8061—Masked polyisocyanates masked with compounds having only one group containing active hydrogen
- C08G18/8064—Masked polyisocyanates masked with compounds having only one group containing active hydrogen with monohydroxy compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
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- 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
- C08L75/02—Polyureas
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L75/04—Polyurethanes
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- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
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- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
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- 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
- C09D135/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least another carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Coating compositions based on derivatives of such polymers
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- 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
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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Definitions
- composition based on a polymerizable component and a thixotropic additive
- the present invention relates to a composition based on a polymerizable component and a thixotropic additive as well as a two-component system containing said composition and a process for preparing a crosslinked product from said composition.
- the invention also relates to the use of an additive to increase the viscosity and/or impart thixotropic properties to a polymerizable component.
- compositions based on compounds functionalized by (meth)acrylate are widely used in many fields, such as coatings, adhesives and composite materials.
- Increasing the viscosity of a composition based on a compound functionalized by (meth)acrylate using a rheology additive advantageously makes it possible to facilitate the storage, handling and use of these compositions.
- the phenomenon of sedimentation of fillers in a composition based on compounds functionalized by (meth)acrylate leads to inhomogeneities in the properties of the resulting material; anti-sedimentation properties should be provided to limit this phenomenon. .
- compositions based on compounds functionalized by (meth)acrylate requires particular precautions since these compounds, in particular monomers functionalized by (meth)acrylate, can have a high saturated vapor pressure and evaporate easily. This results in a modification of the concentration of the composition and the need to set up specific installations to trap the released vapors.
- rheology additive technologies notably fatty acid diamides and silicas, which are suitable to address this issue but which require activation by heating and/or high shear causing self-heating.
- Diurea-diurethane based rheology modifiers are a good alternative to these rheology additives since they are liquid and do not require hot activation steps. Thus, they can be easily and directly incorporated into the composition to be thickened at room temperature (20-25°C).
- Patent application EP 3 381 961 Al describes molding compositions prepared from a monomer composition comprising a thixotropic additive based on diurea-diurethane.
- the thixotropic additive described in this application contains salts such as lithium chloride or a surfactant.
- Lithium salts can cause corrosion problems when the composition is applied to metallic substrates and generate uncontrolled species due to its Lewis acidity.
- lithium salts, notably LiCl are toxic compounds and the formulations which contain them are subject to the regulations in force regarding the classification, labeling and packaging of chemical products.
- the invention relates to a composition
- a composition comprising: a) a polymerizable component comprising a (meth)acrylate functionalized compound; b) a thixotropic additive comprising a diurea-diurethane compound; component b) containing less than 0.1 moles of salt per urea group in component b).
- the invention also relates to a two-component system comprising:
- composition according to the invention with a radical initiator and optionally a radical initiator activator;
- the invention also relates to the use of an additive comprising a diurea-diurethane compound and containing less than 0.1 moles of salt per urea group in the additive to increase the viscosity and/or impart thixotropic properties to a polymerizable component.
- an additive comprising a diurea-diurethane compound and containing less than 0.1 moles of salt per urea group in the additive to increase the viscosity and/or impart thixotropic properties to a polymerizable component.
- a compound functionalized by (meth)acrylate comprising a compound functionalized by (meth)acrylate.
- weight percentages in a compound or composition are expressed relative to the weight of the compound or composition.
- diurea-diurethane compound means a compound having two urea functions and two urethane functions.
- diurethane compound means a compound having two urethane functions and no urea functions.
- polyurea-diurethane compound means a compound having two urethane functions and at least four urea functions.
- solvent means a liquid having the property of dissolving, diluting or lowering the viscosity of other substances without chemically modifying them and without modifying itself.
- aprotic solvent means a solvent that does not have an acidic hydrogen atom.
- an aprotic solvent does not include a hydrogen atom linked to a heteroatom (O, N or S).
- salt means an ionic compound.
- a salt can be inorganic or organic, preferably inorganic.
- the term “salt” does not include ionic surfactants.
- surfactant means a compound capable of modifying the surface tension between two surfaces.
- a surfactant can in particular be an amphiphilic compound, that is to say it has two parts of different polarity, one lipophilic (which retains fat) is non-polar, the other hydrophilic (miscible in water ) is polar.
- alkyl means a monovalent saturated acyclic group of formula -CnEhn+i.
- An alkyl can be linear or branched.
- C1-C30 alkyl means alkyl having 1 to 30 carbon atoms.
- alkylaryl means an alkyl group substituted by an aryl group.
- aliphatic means a non-aromatic acyclic compound or group. It can be linear or branched, saturated or unsaturated, substituted or unsubstituted. It may comprise one or more bonds/functions, for example chosen from ether, ester, amine and their mixtures.
- aromatic means a compound or group comprising an aliphatic part and an aromatic part.
- heterocyclic means a compound or a group comprising a ring having at least one heteroatom chosen from N, O and/or S as ring atom. It can be substituted or unsubstituted. It can be aromatic or non-aromatic.
- composition according to the invention comprises a polymerizable component, also called component a).
- component a) may in particular comprise all of the polymerizable compounds of the composition according to the invention.
- component a) may in particular comprise all of the ethylenically unsaturated compounds of the composition according to the invention. These compounds may in particular be intended to be polymerized, in particular by radical polymerization reaction.
- an “ethylenically unsaturated compound” means a compound which comprises a polymerizable carbon-carbon double bond.
- a polymerizable carbon-carbon double bond is a carbon-carbon double bond that can react with another carbon-carbon double bond in a polymerization reaction.
- a polymerizable carbon-carbon double bond is generally included in a group selected from acrylate (including cyanoacrylate), methacrylate, acrylamide, methacrylamide, styrene, maleate, fumarate, itaconate, allyl, propenyl, vinyl and combinations thereof, preferably selected from acrylate , methacrylate and vinyl, more preferably chosen from acrylate and methacrylate.
- Carbon-carbon double bonds in a phenyl ring are not considered polymerizable carbon-carbon double bonds.
- Component a) comprises a (meth)acrylate functionalized compound.
- Component a) may comprise a mixture of (meth)acrylate functionalized compounds.
- (meth)acrylate functionalized compound means a compound comprising at least one (meth)acryloyloxy group, in particular an acryloyloxy group.
- the total quantity of compound functionalized by (meth)acrylate in component a) can be from 20 to 100%, in particular from 30 to 100%, from 40 to 100%, from 50 to 100%, from 60 to 100%, 70 to 100%, 80 to 100%, or 90 to 100%, by weight based on the weight of component a).
- component a) does not comprise polymerizable compounds other than compounds functionalized by (meth)acrylate.
- Component a) may in particular comprise a compound functionalized by (meth)acrylate chosen from a monomer functionalized by (meth)acrylate, an oligomer functionalized by (meth)acrylate, and mixtures thereof.
- component a) may comprise a monomer functionalized by (meth)acrylate and optionally an oligomer functionalized by (meth)acrylate.
- Component a) may in particular comprise a monomer functionalized by (meth)acrylate.
- Component a) may comprise a mixture of (meth)acrylate functionalized monomers.
- the monomer functionalized by (meth)acrylate may have a molecular weight of less than 600 g/mol, in particular from 70 to less than 550 g/mol, more particularly from 80 to 450 g/mol, more particularly from 90 to 350 g/mol. mol.
- the (meth)acrylate functionalized monomer may have 1 to 6 (meth)acryloyloxy groups, particularly 1 to 4 (meth)acryloyloxy groups.
- the (meth)acrylate functionalized monomer may comprise a mixture of (meth)acrylate functionalized monomers having different functionalities.
- the (meth)acrylate functionalized monomer may comprise a mixture of a (meth)acrylate functionalized monomer containing a single acryloyloxy or methacryloyloxy group per molecule (referred to herein as “mono(meth)acrylate functionalized monomer”) and d a (meth)acrylate functionalized monomer containing 2 or more, preferably 2 to 6, acryloyloxy and/or methacryloyloxy groups per molecule (referred to herein as “poly(meth)acrylate functionalized monomer”).
- Component a) may in particular comprise a monomer functionalized by mono(meth)acrylate.
- Component a) may in particular comprise a mixture of monomers functionalized by mono(meth)acrylate.
- a monomer functionalized by mono(meth)acrylate can advantageously function as a reactive diluent and reduce the viscosity of the composition according to the invention.
- Suitable mono(meth)acrylate functionalized monomers include, but are not limited to, (meth)acrylic acid, mono(meth)acrylate esters of aliphatic alcohols (the alcohol may be straight chain or branched and which may be a monoalcohol, a dialcohol or a polyalcohol, provided that a single hydroxyl group is esterified with a (meth)acrylic acid); mono(meth)acrylate esters of cycloaliphatic or heterocyclic alcohols; mono(meth)acrylate esters of aromatic alcohols (such as phenols, including alkylated phenols); mono(meth)acrylate esters of alkylaryl alcohols (such as benzyl alcohol); mono(meth)acrylate esters of oligomeric and polymeric glycols (such as diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, polyethylene glycol, and polypropylene glycol); mono(meth)acrylate esters of monoalky
- Component a) may in particular comprise a monomer functionalized by mono(meth)acrylate chosen from (meth)acrylic acid; methyl (meth)acrylate; ethyl (meth)acrylate; n-propyl (meth)acrylate; (meth) isopropyl acrylate; n-butyl (meth)acrylate; isobutyl (meth)acrylate; n-pentyl (meth)acrylate; n-hexyl (meth)acrylate; 2-ethylhexyl (meth)acrylate; n-octyl (meth)acrylate; isooctyl (meth)acrylate; n-decyl (meth)acrylate; (meth) isodecyl acrylate; n-dodecyl (meth)acrylate; tridecyl (meth)acrylate; tetradecyl (meth)acrylate; hexadec
- Component a) may in particular comprise a monomer functionalized by poly(meth)acrylate.
- poly(meth)acrylate functionalized monomers include acrylate and methacrylate esters of polyols (organic compounds containing two or more hydroxyl groups per molecule, e.g. 2 to 6).
- suitable polyols are ethylene glycol, 1,2- or 1,3-propylene glycol, 1,2-, 1,3- or 1,4-butylene glycol, 1,5-pentanediol, 1,6-hexanediol , 1,8-octanediol, 1,9-nonanediol, 1,10-decanediol, 1,12-dodecanediol, 2-methyl-1,3-propanediol, 2,2-diethyl-1,3-propanediol, 3-methyl - 1,5-pentanediol, 3,3-dimethyl-l,5-pentanediol, neopentyl glycol, 2,4-diethyl-
- Such polyols can be totally or partially esterified (with a (meth)acrylic acid, a (meth)acrylic anhydride, a chloride of (meth)acryloyl or similar), provided that they contain at least two (meth)acryloyloxy functional groups per molecule.
- component a) may in particular comprise a monomer functionalized by poly(meth)acrylate chosen from bisphenol A di(meth)acrylate; hydrogenated bisphenol A di(meth)acrylate; ethylene glycol di(meth)acrylate; di(meth)acrylate diethylene glycol; triethylene glycol di(meth)acrylate; tetraethylene glycol di(meth)acrylate; polyethylene glycol di(meth)acrylate; propylene glycol di(meth)acrylate; dipropylene glycol di(meth)acrylate; tripropylene glycol di(meth)acrylate; tetrapropylene glycol di(meth)acrylate; polypropylene glycol di(meth)acrylate; polytetramethylene glycol di(meth)acrylate; 1,2-butanediol di(meth)acrylate; 2,3-butanediol di(meth)acrylate; 1,3-butanediol di(meth)acrylate; and
- Component a) may comprise from 0 to 100%, in particular from 5 to 100%, from 10 to 100%, from 15 to 100%, from 20 to 95%, from 25 to 95%, from 30 to 95%, 35 to 90%, 40 to 90%, or 50 to 90%, by weight of (meth)acrylate functionalized monomer based on the weight of component a).
- Component a) may include 0 to 60%, 5 to 60%, 10 to 60%, 15 to 60%, 20 to 60%, 25 to 60%, 30 to 60%, 35 at 60%, 40 to 60% or 45 to 60% by weight of (meth)acrylate functionalized monomer based on the weight of component a).
- component a) may comprise 60 to 100%, 65 to 100%, 70 to 100%, 75 to 100%, 80 to 100%, 85 to 100%, 90 to 100% , or from 95 to 100%, by weight of (meth)acrylate functionalized monomer based on the weight of component a).
- Component a) may in particular comprise an oligomer functionalized by (meth)acrylate.
- Component a) may comprise a mixture of (meth)acrylate functionalized oligomers.
- the (meth)acrylate functionalized oligomer may be chosen in order to increase the flexibility, strength and/or modulus, among other attributes, of a product obtained by polymerization of the composition according to the present invention.
- the (meth)acrylate functionalized oligomer may have 1 to 18 (meth)acryloyloxy groups, particularly 2 to 6 (meth)acryloyloxy groups, more particularly 2 to 6 acryloyloxy groups.
- the (meth)acrylate functionalized oligomer may have a number average molecular weight greater than or equal to 600 g/mol, in particular 800 to 15,000 g/mol, more particularly 1,000 to 5,000 g/mol.
- component a) may in particular comprise an oligomer functionalized by (meth)acrylate chosen from urethane oligomers functionalized by (meth)acrylate, epoxy oligomers functionalized by (meth)acrylate, polyether oligomers functionalized by (meth)acrylate, polydiene oligomers functionalized by (meth)acrylate, polycarbonate oligomers functionalized by (meth)acrylate, polyester oligomers functionalized by (meth)acrylate; acrylic oligomers functionalized by (meth)acrylate; and their mixtures.
- an oligomer functionalized by (meth)acrylate chosen from urethane oligomers functionalized by (meth)acrylate, epoxy oligomers functionalized by (meth)acrylate, polyether oligomers functionalized by (meth)acrylate, polydiene oligomers functionalized by (meth)acrylate, polycarbonate oligomers functionalized by (meth)acrylate, polyester oligomers functionalized by (meth
- (Meth)acrylate functionalized urethane oligomers (sometimes also referred to as “polyurethane (meth)acrylate oligomers") suitable for use in the polymerizable compositions of the present invention include methanes based on at least one polyol, of at least one polyisocyanate and at least one compound functionalized by (meth)acrylate and by hydroxyl (also called hydroxyl-functionalized (meth)acrylate).
- (Meth)acrylate functionalized urethane oligomers can be prepared by reacting a polyisocyanate (e.g. aliphatic, cycloaliphatic, heterocyclic or aromatic diisocyanate or triisocyanate) with a polyol (in particular a polyester polyol, a polyether polyol , a polycarbonate polyol, a polycaprolactone polyol, a polyorganosiloxane polyol, or a polydiene polyol such as a polybutadiene polyol, or combinations thereof), to form isocyanate-terminated oligomers which are then reacted with a (meth) hydroxyl functionalized acrylate (such as hydroxy ethyl (meth)acrylate) to provide terminal (meth)acrylate groups.
- a polyisocyanate e.g. aliphatic, cycloaliphatic, heterocyclic or aromatic diisocyanate or triisocyanate
- (meth)acrylate functionalized urethane oligomers may contain two, three, four (meth)acrylate functional groups per molecule or more.
- Other orders of addition can also be carried out to prepare the (meth)acrylate functionalized urethane oligomer.
- a hydroxyl-functionalized (meth)acrylate can be first reacted with a polyisocyanate to obtain an isocyanate-functionalized (meth)acrylate, which can then be reacted with a polyol.
- all components can be combined and reacted at the same time.
- suitable (meth)acrylate functionalized epoxy oligomers include the reaction products of (meth)acrylic acid (or a corresponding synthetic equivalent, such as acid chloride, alkyl ester or anhydride) with a epoxy resin comprising at least one epoxy group (in particular at least one group chosen from glycidyl ether, glycidyl ester and combinations thereof).
- Suitable (meth)acrylate functionalized polyether oligomers include, but are not limited to, reaction products of (meth)acrylic acid (or a corresponding synthetic equivalent, such as acid chloride, ester alkyl or anhydride) with at least one polyetherol which corresponds to a polyether polyol (such as a polyethylene glycol, a polypropylene glycol, a polytetramethylene glycol or a copolymer thereof).
- Suitable polyetherols may be linear or branched substances containing ether bonds and terminal hydroxyl groups.
- Polyetherols can be prepared by ring-opening polymerization of cyclic ethers such as tetrahydrofuran or alkylene oxides (e.g. ethylene oxide and/or propylene oxide) with a starting molecule.
- Suitable starting molecules include water, polyhydroxyl functionalized materials, polyester polyols and amines.
- Exemplary (meth)acrylate functionalized polydiene oligomers include the reaction products of (meth)acrylic acid (or a corresponding synthetic equivalent, such as acid chloride, alkyl ester or anhydride) with polydiene polyols terminated by a hydroxyl group, in particular a polybutadiene polyol terminated by a hydroxyl group.
- Exemplary (meth)acrylate functionalized polycarbonate oligomers include the reaction products of (meth)acrylic acid (or a corresponding synthetic equivalent, such as acid chloride, alkyl ester or anhydride) with polycarbonate polyols terminated with a hydroxyl group.
- Exemplary (meth)acrylate functionalized polyester oligomers include the reaction products of (meth)acrylic acid (or a corresponding synthetic equivalent, such as acid chloride, alkyl ester or anhydride) with polyester polyols terminated with a hydroxyl group.
- the reaction process can be conducted such that all, or essentially all, of the hydroxyl groups of the polyester polyol have been (meth)acrylated, particularly in cases where the polyester polyol is difunctional.
- Polyester polyols can be prepared by polycondensation reactions of polyhydroxyl-functionalized components (in particular, diols) and poly(carboxylic acid)-functionalized compounds (in particular, dicarboxylic acids and anhydrides).
- the polyhydroxyl functionalized and poly(carboxylic acid) functionalized components may each have linear, branched, cycloaliphatic, or aromatic structures and may be used individually or as mixtures.
- Suitable (meth)acrylate functionalized acrylic oligomers include oligomers which can be described as substances having an acrylic backbone that is functionalized with one or more (meth)acrylate groups (which may be at one terminus of the oligomer or pendant to the acrylic backbone).
- the acrylic backbone may be a homopolymer, a random copolymer, or a block copolymer composed of repeating units of acrylic-like monomers.
- the acrylic type monomers can be any monomeric (meth)acrylate such as C1-C6 alkyl (meth)acrylates as well as functionalized (meth)acrylates such as (meth)acrylates bearing hydroxyl, acidic groups.
- Acrylic (meth)acrylate oligomers can be prepared using any procedure known in the state of the art, such as the oligomerization of monomers, at least part of which being functionalized by hydroxyl groups, carboxylic acid and/or epoxy (e.g., hydroxyalkyl (meth)acrylates, (meth)acrylic acid, glycidyl (meth)acrylate) to obtain a functionalized oligomer intermediate, which is then reacted with one or more (meth)acrylate-containing reactants to introduce the desired (meth)acrylate functional groups.
- hydroxyalkyl (meth)acrylates e.g., hydroxyalkyl (meth)acrylates, (meth)acrylic acid, glycidyl (meth)acrylate
- component a) may in particular comprise an oligomer functionalized by (meth)acrylate chosen from urethane oligomers functionalized by (meth)acrylate, polydiene oligomers functionalized by (meth)acrylate, acrylic oligomers functionalized by (meth) )acrylate, and mixtures thereof.
- Component a) may comprise from 0 to 100%, in particular from 5 to 100%, from 10 to 100%, from 15 to 100%, from 20 to 95%, from 25 to 95%, from 30 to 95%, from 35 to 90%, from 40 to 90%, or from 50 to 90%, by weight of (meth)acrylate functionalized oligomer based on the weight of component a).
- Component a) may include 0 to 60%, 5 to 60%, 10 to 60%, 15 to 60%, 20 to 60%, 25 to 60%, 30 to 60%, 35 at 60%, 40 to 60% or 45 to 60% by weight of (meth)acrylate functionalized oligomer based on the weight of component a).
- component a) may comprise 60 to 100%, 65 to 100%, 70 to 100%, 75 to 100%, 80 to 100%, 85 to 100%, 90 to 100% , or from 95 to 100%, by weight of (meth)acrylate functionalized oligomer based on the weight of component a).
- component a) comprises
- the composition according to the invention comprises a thixotropic additive, also called component b).
- the thixotropic additive is used in particular to increase the viscosity and/or confer thixotropic properties to the composition according to the invention.
- the term “conferring thixotropic properties to a composition” means increasing the viscosity of a composition when the composition is at rest (no shear stress is applied) and lowering the viscosity of a composition. when the composition is subjected to shear stress in a reversible manner with a history memory or time dependence.
- the increase and decrease in viscosity can be determined in relation to a control composition not including a thixotropic additive.
- Component b) comprises a diurea-diurethane compound.
- Component b) may comprise a mixture of diurea-diurethane compounds.
- Component b) may further comprise an aprotic solvent.
- Component b) is stable although it contains little or no salt.
- Component b) contains less than 0.1 moles of salt per urea group in component b) (excluding any aprotic solvent).
- the number of urea groups is determined on all the compounds contained in component b) (excluding any aprotic solvent).
- the diurea-diurethane compound(s) contains 2 urea groups. If component b) contains 1 mole of diurea-diurethane compound(s) and there is no other compound having at least one urea group in component b), then component b) contains less than 0 .2 moles of salt.
- component b) may contain from 0 to less than 0.1 moles, or from 0 to 0.09 moles, or from 0 to 0.07 moles, or from 0 to 0.05 moles, or from 0 to 0.03 moles, or from 0 to 0.01 moles, or from 0 to 0.001 moles, of salt per urea group in component b) (excluding any aprotic solvent).
- component b) may contain less than 1.6%, or 0 to 1.4%, or 0 to 1.1%, or 0 to 0.8%, or 0 to 0.4 %, or from 0 to 0.3%, or from 0 to 0.25%, or from 0 to 0.15%, or from 0 to 0.05%, by weight of LiNOs relative to the weight of component b) (excluding possible aprotic solvent).
- the salt may in particular be chosen from a metallic salt, an ionic liquid and an ammonium salt.
- the salt may be a metal salt chosen from a halide, an acetate, a formate, a nitrate.
- the salt may be a lithium salt.
- the salt may be a lithium salt chosen from LiCl, LiNCh, LiBr and their mixtures.
- Component b) can in particular be stable without adding a stabilizer, such as in particular a surfactant.
- component b) according to the invention contains less than 0.1 moles of surfactant per urea group in component b).
- component b) may contain from 0 to 0.1 moles, or from 0 to 0.08 moles, or from 0 to 0.06 moles, or from 0 to 0.04 moles, or from 0 to 0, 02 moles, or from 0 to 0.01 moles, or from 0 to 0.001 moles, of surfactant per urea group in component b) (excluding possible aprotic solvent).
- component b) may contain less than 3%, or 0 to 2.8%, or 0 to 2.4%, or 0 to 2%, or 0 to 1.6%, or 0 to 1.2%, or 0 to 1%, or 0 to 0.5%, or 0 to 0.1%, or 0 to 0.01%, by weight of surfactant relative to the weight of the component b) (excluding possible aprotic solvent).
- the surfactant may in particular be chosen from an anionic surfactant, a cationic surfactant, a non-ionic surfactant, a zwitterionic surfactant and their mixtures.
- the surfactant may in particular have an HLB of 8 to 12.
- anionic surfactants are sulfonates, sulfates, sulfosuccinates, phosphates and carboxylates.
- cationic surfactants are quaternary ammonium salts (in particular tetraalkylammonium salts and quaternary ammonium esters or esterquats).
- non-ionic surfactants are alkoxylated fatty alcohols (in particular ethoxylated and/or propoxylated), alkyl glycosides, fatty acid esters (in particular glycol esters, glycerol esters, sorbitan esters or sucrose esters of acids).
- esters alkoxylated fatty acids in particular ethoxylated and/or propoxylated.
- zwitterionic surfactants are betaines, imidazolines, sultaines, phospholipids and amine oxides.
- Component b) may have an NCO index of less than 0.5 mg KOH/g, in particular less than 0.2 mg KOH/g, more particularly less than 0.1 mg KOH/g, more particularly still 0 mg KOH/ g.
- the NCO index can be measured using the method described below.
- Component b) comprises a diurea-diurethane compound.
- Component b) may comprise a mixture of diurea-diurethane compounds.
- the diurea-diurethane compound may correspond to a compound of formula (I): in which the groups R', R2 and R3 are as defined below.
- the compounds of formula (I) do not contain a tertiary amine function or a quaternary ammonium function.
- the compound(s) of formula (I) may in particular correspond to the reaction product(s) of at least one alcohol of formula R' -OH, of at least one diisocyanate of formula OCN-R2-NCO and at least one diamine of formula H2N-R3-NH2.
- Component b) may in particular comprise 5% to 80%, in particular 15% to 75%, more particularly 25% to 65%, in moles of compound of formula (I) relative to the total molar quantity of compounds having one or several functions chosen from urea, urethane, and their mixtures (excluding possible aprotic solvent).
- a compound of formula (I) contains two R' groups.
- the R' groups of the same compound of formula (I) may be identical or different.
- Component b) may comprise a mixture of compounds of formula (I) having identical R' groups.
- Component b) may comprise a mixture of compounds of formula (I) which are distinguished by their R' groups. For example, some compounds in the mixture may have identical R' groups and some compounds in the mixture may have different R' groups.
- Each R' group can come from the use of an alcohol of formula R'-OH to form the diurea-diurethane compound(s) of formula (I).
- the R' group can correspond to the residue of an alcohol of formula R'-OH without the OH group.
- the R' groups and the corresponding alcohols of formula R'-OH described below also apply to the process for preparing the diurea-diurethane compound described below.
- Y and Z are independently selected from alkyl, alkenyl, cycloalkyl, aryl and alkylaryl;
- R a , Rb, Rc and Rd are independently chosen from H and methyl, in particular H; each n is independently equal to 2, 3 or 4, in particular n is 2; m goes from 1 to 30, in particular m goes from 2 to 25; p goes 3 to 5, in particular p is 5; q goes from 1 to 20, in particular q goes from 2 to 10.
- a group R' can be an alkyl, in particular a C1 to C30 alkyl.
- suitable alkyl groups are methyl, propyl, 1-methylethyl, butyl, Xi-2-methylpropyl, pentyl, Xi-3-methylbutyl, hexyl, Xi-4-methylpentyl, heptyl, Xi-s-methylhexyl, octyl, Xi -6-methylheptyl, 2-ethylhexyl, nonyl, Xi-7-methyloctyl, decyl, Xi-s-methylnonyl, undecyl, Xi-9-methyldecyl, dodecyl, Xi-10-methylundecyl, tridecyl, Xi-11-methyldodecyl, 2 ,5,9-trimethyldecyl, tetradecyl, Xi-12-methyltride
- the Xi-11-methyldodecyl group is a dodecyl group substituted by a methyl group in position 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or 11, for example 11-methyldodecyl, 2-methyldodecyl.
- isomers we mean the alkyl groups having the same number of carbon atoms but having a different substitution pattern, for example an ethyl instead of a methyl or a larger number of methyl.
- the 2,5,9-trimethyldecyl group is an isomer of the 11-methyldodecyl or 2-methyldodecyl group.
- the aforementioned alkyl groups can in particular be linked to the urethane group in position 1.
- the 2,5,9-trimethyldecyl group can be represented by the following formula: in which the broken line represents a point of attachment to a urethane group of the compound of formula (I).
- a group R' can be an alkenyl, in particular a C2 to C30 alkenyl.
- suitable alkenyl groups are hex-Y2-5-enyl, hept-Y2-6-enyl, oct-Y2-7-enyl, non-Y2-8-enyl, dec-Y2-9-enyl, undec-Y2 -io-enyl, dodec-Y2-n-enyl, tridec-Y2-i2-enyl, tetradec-Y2-i3-enyl, hexadec-Y2-is-enyl, octadec-Y2-i7-enyl, icos-Y2-i9 -enyl, docos-Y2-2i-enyl, heptadeca-8,l-dienyl, octadeca-9,12-dienyl, nonadeca-10,13-dienyl, icosa-l
- the hex-Y2-5-enyl group is a hexenyl group in which the double bond can be in position 2, 3, 4 or 5 which corresponds to the hex-2-enyl, hex-3-enyl, hex-4- groups. enyl and hex-5-enyl.
- the aforementioned alkenyl groups can in particular be linked to the urethane group in position 1.
- the hex-2-enyl group can be represented by the following formula: in which the broken line represents a point of attachment to a urethane group of the compound of formula (I).
- a group R' can be a cycloalkyl, in particular a C5 to C12 cycloalkyl.
- suitable cycloalkyl groups are cyclopentyl, cyclohexyl, cycloheptyl, cycloctyl, cyclononyl, cyclodecyl, cycloundecyl, and cyclododecyl.
- a group R' can be an aryl, in particular a C6 to C12 aryl.
- Suitable aryl groups are phenyl, naphthyl, biphenyl, ortho-, meta- or para-tolyl, 2,3-, 2,4-, 2,5-, 2,6-, 3,4- or 3,5 -xylyl and mesityl.
- a group R' can be an alkylaryl, in particular a C7 to C12 alkylaryl.
- suitable alkylaryl groups are benzyl, 2-phenylethyl, 3-phenylpropyl, 4-phenylbutyl, 2-phenylbutyl.
- a group R' can be a group •-[(CR a Rb)ii-O] m -Y in which
- Y is chosen from alkyl, alkenyl, cycloalkyl, aryl and alkylaryl;
- R a and Rb are independently chosen from H and methyl, in particular H; each n is independently equal to 2, 3 or 4, in particular n is 2; m goes from 1 to 30, in particular m goes from 2 to 25.
- •-[(CR a Rb)ii-O] m -Y groups are the alkoxylated derivatives of the alkyl, alkenyl, cycloalkyl, aryl and alkylaryl groups described above.
- Polyethylene glycols, polypropylene glycols, co-poly (ethylene glycol/propylene glycol) and polytetramethylene glycols comprising a terminal group chosen from an alkyl, alkenyl, cycloalkyl, aryl and alkylaryl group as described above are particularly suitable.
- These groups can in particular be obtained by reacting an alcohol R' OH having an R' group as described above with a cyclic compound chosen from ethylene oxide, propylene oxide, tetrahydrofuran and their mixtures.
- R c and Rd are independently chosen from H and methyl, in particular H; p goes from 3 to 5 in particular p is 5; q goes from 1 to 20, in particular q goes from 2 to 10.
- Polyesters comprising a terminal group chosen from an alkyl, alkenyl, cycloalkyl, aryl and alkylaryl group as described above are particularly suitable.
- These groups can in particular be obtained by reacting an alcohol R' OH having an R' group as described above with a lactone chosen from gamma-butyrolactone, delta-valerolactone, epsilon-caprolactone and their mixtures.
- each R' is independently chosen from alkyl and •-[(CR a Rb)ii-O]mY as defined above.
- each R' is independently chosen from linear or branched C1-C30 alkyl and •-[CH2-CH2-O] m -Y with Y a C1-C24 alkyl and m ranges from 1 to 25.
- each R' is independently chosen from branched C8-C20 alkyl and •-[CH2-CH2-O] m -Y with Y being C1-C6 alkyl and m ranges from 2 to 20.
- each R' is independently chosen from octyl, Xi-6-methylheptyl, 2-ethylhexyl, nonyl, Xi-7-methyloctyl, decyl, Xi-s-methylnonyl, undecyl, Xi-9-methyldecyl, dodecyl, Xi -10-methylundecyl, tridecyl, Xi-11-methyldodecyl, 2,5,9-trimethyldecyl, tetradecyl, Xi-12-methyltridecyl, pentadecyl, Xi-13-methyltetradecyl, hexadecyl, Xi-14-methylpentadecyl, heptadecyl, Xi-15 -methylhexadecyl, octadecyl, Xi-i6-methylheptadecyl, nonadec
- a compound of formula (I) may have identical or different R' groups.
- a compound of formula (I) may have R' groups having a different molecular mass.
- a compound of formula (I) may have R' groups having a different chemical nature, in particular a hydrophilicity.
- Component b) may comprise a compound of formula (I) in which the R' groups are identical.
- Component b) may comprise a compound of formula (I) in which the R' groups are different.
- Component b) may comprise a compound of formula (I) in which the R' groups are identical and a compound of formula (I) in which the R' groups are different.
- Component b) may in particular comprise a compound of formula (I) in which the R' groups are identical.
- the groups R' may be identical and correspond to Ri, Ri being a linear or branched C1-C30 alkyl, in particular a linear or branched C8-C20 alkyl, more particularly a branched C8-C20 alkyl as described above.
- Component b) may in particular comprise a mixture of compounds of formula (I), said mixture containing at least one compound of formula (I) in which the R' groups are different.
- the mixture may contain at least one compound of formula (I) in which the R' groups have a different molecular mass.
- the mixture may contain at least one compound of formula (I) in which the R' groups have a different chemical nature, in particular a hydrophilicity.
- a thixotropic additive comprising a compound of formula (I) in which the R' groups are different can in particular be obtained by using a mixture of at least 2 different R'-OH alcohols, corresponding in particular to R4-OH and R5-OH, to form the compound(s) of formula (I).
- mixture of compounds of formula (I) may contain:
- the molecular masses of groups R4 and R5 may be different.
- the R4 group may have a lower molecular mass than that of the R5 group.
- the difference between the molecular mass of group R4 and that of group R5 may be at least 50, at least 100, at least 150, at least 200, at least 300 or at least 350 g/mol.
- R4 and R5 can be different.
- the R4 group may be more hydrophobic than the R5 group.
- R4, R5 and R ⁇ being as defined previously for R’.
- the molecular masses of the R4, R5 and R ⁇ groups can be different.
- the R4 group may have a lower molecular mass than that of the R5 group; and/or the R4 group may have a lower molecular mass than that of the R ⁇ group; and/or the R5 group may have a lower molecular mass than that of the R ⁇ group.
- the R4 group has a lower molecular mass than those of the R5 and R ⁇ groups.
- the difference between the molecular mass of the group R4 and that of group R5; and/or the difference between the molecular mass of the R4 group and that of the R ⁇ group; and/or the difference between the molecular mass of the R5 group and that of the R ⁇ group may be at least 50, at least 100, at least 150, at least 200, at least 300 or at least 350 g/mol.
- the R4, R5 and R ⁇ groups can have different chemical natures.
- the R4 group may be more hydrophobic than the R5 group; and/or the R4 group may be more hydrophobic than the R ⁇ group; and/or the R5 group may be more hydrophobic than the R ⁇ group. More particularly, the R4 group is more hydrophobic than the R5 and R ⁇ groups.
- the total molar quantity of the groups R5 and R ⁇ in particular the total molar quantity of the least hydrophobic groups and/or the groups having the highest molecular masses, may in particular represent more than 20%, in particular from 25 to 95%, 30 to 90%, 35 to 85%, or 40 to 80%, of the total molar quantity of the groups R4, R5 and R ⁇ in all of the products having one or more functions chosen from urea, urethane, and their mixtures in the component b) (excluding possible aprotic solvent).
- the R' groups may in particular be the residues of one or more alcohols of formula R' -OH without the OH group.
- Y and Z are independently selected from C1-C30 alkyl, C2-C30 alkenyl, C5-C12 cycloalkyl, C6-C12 aryl and C7-C12 alkylaryl;
- R a , Rb, Rc and Rd are independently chosen from H and methyl, in particular H; each n is independently equal to 2, 3 or 4, in particular n is 2; m goes from 1 to 30, in particular m goes from 2 to 25; p goes 3 to 5, in particular p is 5; q goes from 1 to 20, in particular q goes from 2 to 10
- a C1 to C30 alkane substituted by an OH group may in particular be chosen from octan-l-ol, octan-2-ol, Xi-6-methylheptan-l-ol, 2-ethylhexan-l-ol, nonan-l- ol, Xi-7-methyloctan-l-ol, decan-l-ol, Xi-s-methylnonan-l-ol, undecan-l-ol, Xi-9-methyldecan-l-ol, dodecan-l-ol, Xi-io-methylundecan-l-ol, tridecan-l-ol, Xi-n-methyldodecan-l-ol, 2,5,9-trimethyldecan-l-ol, tetradecan-l-ol, Xi-i2-methyltridecan- l-ol, pentadecan-l-ol, Xi-i3
- Xi-n-methyldodecan-l-ol is a dodecane substituted with an OH group at position 1 and a methyl group at position 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or 11, by example 2-methyldodecan-l-ol or 11-methyldodecan-l-ol.
- isomers we mean alkanes having the same number of carbon atoms but having a different substitution pattern, for example an ethyl substituent instead of a methyl substituent or a larger number of methyl substituents.
- 2,5,9-trimethyldecan-l-ol is an isomer of 2-methyldodecan-l-ol and 11-methyldodecan-l-ol.
- the C1 to C30 alkane substituted by an OH group is chosen from 11-methyldodecan-l-ol and 2,5,9-trimethyldecano-1-ol.
- a C2 to C30 alkene substituted by an OH group may in particular be chosen from Y2-5-hexen-l-ol, Y2-6-hepten-l-ol, Y2-7-octen-l-ol, Y2-8- nonèn-l-ol, Y2-9-decèn-l-ol, Y2 io-undecèn-l-ol, Y2-n-dodecèn-l-ol, Y2-i2-tridecèn-l-ol, Y2-i3-tetradecèn -l-ol, Y2 i5-hexadecèn-l-ol, Y2 i7-octadecèn-l-ol, Y2-i9-icosén-l-ol, Y2-2i-docosèn-l-ol, heptadeca-8,l l- dien-l-o
- a C5 to C12 cycloalkane substituted by an OH group may in particular be chosen from cyclopentanol, cyclohexanol, cycloheptanol, cycloctanol, cyclononanol, cyclodecanol, cycloundecanol, and cyclododecanol; preferably cyclopentanol and cyclohexanol.
- a C6 to C12 arene substituted by an OH group may in particular be chosen from phenol, 1- or 2-naphthol, 2-, 3- or 4-phenylphenol, 2-, 3- or 4-methylphenol, 2,3-, 2,4-, 2.5-, 2,6-, 3,4- or 3,5-dimethylphenol and 2,4,6-, 2,3,5- or 2,3,6-trimethylphenol.
- a C7 to C12 alkylarene substituted by an OH group may in particular be chosen from benzyl alcohol, 2-phenylethane-l-ol, 3-phenylpropan-l-ol, 4-phenylbutan-l-ol, 2-phenylbutan-l-ol ; preferably benzyl alcohol and 2-phenylethane-l-ol.
- An alcohol HO-[(CR a Rb)nO] m -Y may in particular be chosen from an alkoxylated derivative of a C1 to C30 alkane substituted by an OH group as defined above, an alkoxylated derivative of a C2 alkene to C30 substituted by an OH group as defined above, an alkoxylated derivative of a C5 to C12 cycloalkane substituted by an OH group as defined above, an alkoxylated derivative of a C6 to C12 arene substituted by an OH group such as defined above, an alkoxylated derivative of a C7 to C12 alkylarene substituted by an OH group as defined above.
- a polyester derivative may in particular comprise a polyester part obtained by ring-opening polymerization of a lactone, preferably chosen from gamma-butyrolactone, delta-valerolactone, epsilon-caprolactone and their mixtures.
- a compound of formula (I) contains two R2 groups.
- the R2 groups of the same compound of formula (I) may be identical or different.
- Component b) may comprise a mixture of compounds of formula (I) having identical R2 groups.
- Component b) may comprise a mixture of compounds of formula (I) which are distinguished by their R2 groups. For example, some compounds in the mixture may have identical R2 groups and some compounds in the mixture may have different R2 groups.
- Each R2 group can come from the use of a diisocyanate of formula OCN-R2-NCO to form the diurea-diurethane compound(s) of formula (I).
- the R2 group can correspond to the residue of a diisocyanate of formula OCN-R2-NCO without the NCO groups.
- the R2 groups and the corresponding diisocyanates of formula OCN-R2-NCO described below also apply to the process according to the invention.
- Each R2 is independently a divalent group selected from an aliphatic group, a cycloaliphatic group, an aromatic group and an araliphatic group.
- each R2 is independently an aromatic group.
- each R2 is independently an aromatic group having the following formula: in which the symbol • represents a point of attachment to a urea or urethane group of formula (I). More particularly, each R2 is independently an aromatic group having one of the following formulas: in which the symbol • represents a point of attachment to a urea or urethane group of formula (I).
- Component b) may in particular have more than 85 mol%, more than 90 mol%, more than 95 mol%, more than 97 mol%, more than 98 mol%, more than 99 mol% or 100 mol%, of set of R2 groups contained in the compound(s) of formula (I) which are aromatic groups of the following formula: in which the symbol • represents a point of attachment to a urea or urethane group of formula (I).
- component b) may have 86 to 100 mol%, 90 to 100 mol%, 95 to 100 mol%, 97 to 100 mol%, 98 to 100 mol%, 99 to 100 mol% , or 100 mol%, of all the R2 groups contained in the compound(s) of formula (I) which are aromatic groups of the following formula: in which the symbol • represents a point of attachment to a urea or urethane group of formula (I).
- the R2 group is linked on one side to a urethane group (coming from the reaction between an isocyanate group of the OCN-R2-NCO diisocyanate and the OH group of the alcohol R'OH) and on the other side to a group urea (coming from the reaction between the other isocyanate group of the diisocyanate OCN-R2-NCO and an NH2 group of the diamine H2N-R3-NH2).
- represents a point of attachment to a urea group of formula (I).
- the R2 group is asymmetric, there may be one side of the R2 group that is preferably linked to the urethane group and the other side that is preferably linked to the urea group.
- the Applicant assumes that the less hindered side of the R2 group is preferably linked to the urethane group.
- represents a point of attachment to a urea group of formula (I).
- represents a point of attachment to a urea group of formula (I).
- the R2 groups may in particular be the residues of one or more diisocyanates of formula OCN-R2-NCO without the NCO groups.
- a diisocyanate of formula OCN-R2-NCO may be a toluene diisocyanate (TDI).
- TDI may be in the form of one or more isomers selected from toluene 2,4-diisocyanate and toluene 2,6-diisocyanate.
- TDI which comprises a high proportion of toluene 2,4-diisocyanate
- TDI which comprises only toluene 2,4-diisocyanate.
- the Applicant assumes that the asymmetry of this compound makes it possible to reduce the quantity of secondary products, in particular of the compound of formula (II), in component b).
- represents a point of attachment to a urea group of formula (I).
- a diisocyanate of formula OCN-R2-NCO is a TDI containing more than 85 mol%, more than 90 mol%, more than 95 mol%, more than 97 mol%, more than 98 mol%, more than
- a diisocyanate of formula OCN-R2-NCO is a TDI containing from 86 to 100 mol%, from 90 to 100 mol%, from 95 to
- a diisocyanate of formula OCN-R2-NCO is a TDI containing 100 mol% of toluene 2,4-diisocyanate relative to the total quantity of toluene diisocyanate isomers.
- a compound of formula (I) contains an R3 group.
- Component b) may comprise a mixture of compounds of formula (I) having identical R3 groups.
- Component b) may comprise a mixture of compounds of formula (I) which are distinguished by their R3 groups.
- Each R3 group can come from the use of a diamine of formula H2N-R3-NH2 to form the diurea-diurethane compound(s) of formula (I).
- the R3 group can correspond to the residue of a diamine of formula H2N-R3-NH2 without the NH2 groups.
- the R3 groups and the corresponding diamines of formula H2N-R3-NH2 described below also apply to the process according to the invention.
- Each R3 is independently a divalent group selected from an aliphatic group, a cycloaliphatic group, an aromatic group, an araliphatic group and a heterocyclic group.
- each R3 is independently a group chosen from C2-C24 alkylene, -(CRhRi)s-[A-(CRjRk)t]u- -(CRiR m ) v -CY-(CR n Ro )w-, and -(CR P R q ) x -CY-(CH2) y -CY-(CRrRs)z-; in which
- A is O or NX
- X is C1 to C6 alkyl, in particular methyl or ethyl
- CY is a ring chosen from phenyl, cyclohexyl, naphthyl, decahydronaphthyl, piperazinyl, triazinyl and pyridinyl, the ring being unsubstituted or substituted by 1 to 3 C1-C4 alkyl groups; s goes from 2 to 4, in particular s is 2; t goes from 2 to 4, in particular t is 2; u ranges from 1 to 30; v, w, xy and z range independently from 0 to 4.
- Each R3 may in particular be a group chosen from C2-C24 alkylene and -(CRiR m )v-CY-(CR n Ro)w-; in particular a group chosen from C2-C18 alkylene and -(CH2)v-CY-(CH2)w- with CY a cyclohexyl or phenyl ring, the ring being unsubstituted or substituted by 1 to 3 C1- alkyl groups C4, v and w ranging from 0 to 1.
- each R3 can be a group chosen from C2-C6 alkylene and a group having the following formula: in which the symbol • represents a point of attachment to a urea group of the compound of formula (I).
- Component b) may in particular have more than 85 mol%, more than 90 mol%, more than 95 mol%, more than 97 mol%, more than 98 mol%, more than 99 mol% or 100 mol%, of set of R3 groups contained in the compound(s) of formula (I) which are groups of the following formula:
- component b) may have 86 to 100 mol%, 90 to 100 mol%, 95 to 100 mol%, 97 to 100 mol%, 98 to 100 mol%, 99 to 100 mol% , or 100 mol%, of all the R3 groups contained in the compound(s) of formula (I) which are groups of the following formula:
- the R3 group(s) may in particular be the residue(s) of one(s) of one or more diamines of formula H2N-R3-NH2 without the NH2 groups.
- a diamine of formula H2N-R3-NH2 can be chosen from a C2 to C24 aliphatic diamine, a C6 to Cl 8 cycloaliphatic diamine, an aromatic C6 to C24 diamine, an araliphatic C7 to C26 diamine, a heterocyclic diamine of C3 to Cl 8.
- a C2 to C24 aliphatic diamine is a diamine of formula H2N-R3-NH2 in which R3 is an aliphatic group comprising 2 to 24 carbon atoms.
- An aliphatic diamine may be linear or branched, preferably linear.
- An aliphatic diamine can be a polyetheramine, that is to say a diamine of formula H2N-R3-NH2 in which R3 comprises ether bonds (-O-), more particularly ethylene oxide units (-O-CH2 -CH2) and/or propylene oxide (-O-CH2-CHCH3-).
- An aliphatic diamine can be a polyalkyleneimine, that is to say a diamine of formula H2N-R3-NH2 in which R3 is interrupted by one or more tertiary amines (-NX- with X a C1 to C6 alkyl).
- An aliphatic diamine may be interrupted by one or more tertiary amine groups.
- suitable linear aliphatic amines are 1,2-ethylenediamine, 1,3-propylenediamine, 1,4-tetramethylenediamine,
- Suitable branched aliphatic amines are 1,2-propylenediamine, 2,2-dimethyl-1,3-propanediamine, 2-butyl-2-ethyl-1,5-pentanediamine and mixtures thereof.
- polyetheramines are the compounds marketed by Hunstmann under the reference Jeffamine®, in particular the Jeffamine® D, ED and EDR series (diamines).
- a C6 to C18 cycloaliphatic diamine is a diamine of formula H2N-R3-NH2 in which R3 is a cycloaliphatic group comprising 6 to 18 carbon atoms.
- R3 is a cycloaliphatic group comprising 6 to 18 carbon atoms.
- suitable cycloaliphatic diamines are
- a C6 to C24 aromatic diamine is a diamine of formula H2N-R3-NH2 in which R3 is an aromatic group comprising 6 to 24 carbon atoms.
- suitable aromatic diamines are ortho-, meta- and para-phenylenediamine, ortho-, meta- and para-toluylene diamine, 3,4'-diaminodiphenyl ether, 4,4'-diaminodiphenyl ether, and mixtures thereof; preferably ortho-, meta- and para-phenylenediamine.
- a C7 to C26 araliphatic diamine is a diamine of formula H2N-R3-NH2 in which R3 is an araliphatic group comprising 7 to 26 carbon atoms.
- suitable araliphatic diamines are ortho-, meta- and para-xylylenediamine, 4,4'-diaminodiphenylmethane and mixtures thereof; preferably ortho-, meta- and para-xylylenediamine.
- a C3 to C18 heterocyclic diamine is a diamine of formula H2N-R3-NH2 in which R3 is a heterocyclic group comprising 3 to 18 carbon atoms.
- suitable heterocyclic diamines are 1,2-diaminopiperazine, 1,4-diaminopiperazine, 1,4-bis(3-aminopropyl)piperazine, 2,3-, 2,6- and 3,4-diaminopyridine, 2,4- diamino-1,3,5-triazine and mixtures thereof.
- Component b) may further comprise an aprotic solvent.
- Component b) may include a mixture of aprotic solvents.
- the aprotic solvent is chosen from dimethylsulfoxide, N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, N-ethylpyrrolidone, N-propylpyrrolidone, N-butylpyrrolidone, N, N,N',N '-tetramethylurea, and their mixtures.
- the aprotic solvent is chosen from dimethyl sulfoxide, N-butylpyrrolidone and mixtures thereof.
- Component b) may in particular comprise 20 to 95% by weight, in particular 40 to 80%, more particularly 50 to 70%, by weight of aprotic solvent relative to the weight of component b).
- Component b) may further comprise a diurethane compound.
- Component b) may comprise a mixture of diurethane compounds.
- diurethane makes it possible to stabilize component b) and reduce the number of by-products obtained during its preparation.
- the presence of diurethane in component b) makes it possible to eliminate or significantly reduce the quantity of salt, in particular lithium salt, or surfactant compared to the thixotropic additives of the prior art.
- a diurethane compound may in particular correspond to a compound of formula (II): in which R' and R2 are as defined above for the compound of formula (I).
- component b) comprises 20% to 95%, in particular 25% to 85%, more particularly 35% to 75%, in moles of compound of formula (II) relative to the total molar quantity of compounds having one or more functions chosen from urea, urethane, and their mixtures (excluding possible aprotic solvent).
- Component b) may further comprise a polyurea-diurethane compound.
- Component b) may comprise a mixture of polyurea-diurethane compounds.
- a polyurea-diurethane compound may in particular correspond to a compound of formula (III): in which R', R2 and R3 are as defined above for the compound of formula (I); z is 1 to 10.
- component b) Since polyurea-diurethane compounds are generally solid, it is advantageous to limit their quantity in component b). Although it is possible to reduce the residual diisocyanate content by implementing a distillation step before the reaction between the monoisocyanate adduct and the diamine, this represents a significant cost and requires specific installations.
- Component b) has a low content of polyurea-diurethane compound although its preparation process does not require a residual diisocyanate distillation step. This is made possible in particular by adjusting the molar ratio of the reagents used in the process for preparing component b) as described below.
- component b) less than 4%, in particular from 3.0 to 1.5%, from 2.0 to 1.0% or from 1.0 to 0% in moles of compound of formula (III) relative to the total molar quantity of compounds having one or more functions chosen from urea, urethane, and their mixtures (excluding possible aprotic solvent).
- Component b) can be prepared according to the process described below.
- the process for preparing component b) comprises a step a), a step b) and optionally one or more additional steps which can take place before step a), between step a) and step b) and/ or after step b).
- Y and Z are independently selected from alkyl, alkenyl, cycloalkyl, aryl and alkylaryl;
- R a , Rb, Rc and Rd are independently chosen from H and methyl, in particular H; each n is independently equal to 2, 3 or 4, in particular n is 2; m goes from 1 to 30, in particular m goes from 2 to 25; p goes 3 to 5, in particular p is 5; q goes from 1 to 20, in particular q goes from 2 to 10.
- the groups R', R2 and R3, the diisocyanate of formula OCN-R2-NCO, the alcohol of formula R'-OH and the diamine of formula H2N-R3-NH2 may in particular be as defined previously for the compound of formula I.
- the particular embodiments described for the compound of formula (I) also apply to the process for preparing component b).
- Step a) can in particular be carried out by gradually adding F to at least one alcohol in a reactor containing F at least one diisocyanate.
- the at least one diisocyanate may in particular be in the molten state.
- the speed of addition of the at least one alcohol can be controlled in order to limit exotherm.
- the speed of addition of the at least one alcohol can be controlled in order to maintain the temperature of the reaction medium less than or equal to 60°C, in particular from 20 to 60°C, from 25 to 55°C or from 30 to 40°C.
- Step a) is carried out with a molar ratio between the total quantity of alcohol and the total quantity of diisocyanate of 1.10 to 1.80.
- the molar ratio between the total quantity of alcohol and the total quantity of diisocyanate in step a) ranges from 1.20 to 1.60, more particularly from 1.25 to 1.45, more particularly still 1 .30 to 1.40.
- the ratio of alcohol to diisocyanate in step a) makes it possible to limit the quantity of residual diisocyanate at the end of step a).
- the quantity of residual diisocyanate at the end of step a) corresponds to the quantity of diisocyanate introduced in step a) which has not reacted with the at least one alcohol. Controlling the quantity of residual diisocyanate at the end of step a) advantageously makes it possible to limit the formation of insoluble species, in particular of the compound of formula (III) as described above, during step b).
- the quantity of residual diisocyanate in the reaction mixture at the end of step a) is less than 6%, in particular from 0 to 5%, from 0.01 to 4.5% or from 0.05 to 4 molar % relative to the molar quantity of all the compounds having one or more functions chosen from urethane, isocyanate and their mixtures.
- the ratio of alcohol to diisocyanate in step a) advantageously makes it possible to avoid carrying out a step of eliminating residual diisocyanate. Indeed, the quantity of residual diisocyanate at the end of step a) is sufficiently low and will not cause excessive formation of insoluble species, in particular of compound of formula (III) as described above, during the step b). According to a particular embodiment, the process for preparing component b) does not comprise a step of distilling residual diisocyanate, in particular no step of distilling residual diisocyanate between step a) and step b) .
- the ratio of alcohol to diisocyanate in step a) can lead to the formation of one or more diurethane compound(s) as described above.
- the Applicant assumes that the presence of diurethane compound in component b) makes it possible to stabilize the urea bonds formed during step b). Thus, it is possible to greatly reduce, or even eliminate, the quantity of stabilizer (in particular salt, for example lithium salt, or surfactant) added in step b) compared to the processes of the prior art.
- stabilizer in particular salt, for example lithium salt, or surfactant
- step a) can be continued until the NCO index of the reaction mixture reaches the theoretical NCO index.
- the NCO index at the end of step a) may in particular be less than 200 mg KOH/g.
- the NCO index at the end of step a) can be 5 to 150 mg KOH/g, 25 to 125 mg KOH/g, 50 to 100 mg KOH/g or 60 to 80 mg KOH /g.
- the NCO index at the end of step a) can in particular be measured according to the method described below.
- the theoretical NCO index at the end of step a) can in particular be calculated using the method described below.
- Step b) can in particular be carried out by gradually adding the mixture obtained in step a) into a reactor containing at least one diamine and optionally aprotic solvent and/or salt.
- the speed of addition of the mixture obtained in step a) can be controlled in order to limit exotherm.
- the speed of addition of the mixture obtained in step a) can be controlled in order to maintain the temperature of the reaction medium less than or equal to 80°C, in particular from 20 to 80°C, from 30 to 70°C. C, or 40 to 60°C.
- step b) can be continued until the NCO index of the reaction mixture reaches the value desired.
- the NCO index of the thixotropic additive obtained by the process for preparing component b) may in particular be less than 0.5 mg KOH/g, in particular less than 0.2 mg KOH/g, more particularly less than 0, 1 mg KOH/g, more particularly 0 mg KOH/g.
- the NCO index of the thixotropic additive can in particular be determined according to the method described in the patent application filed under number PCT/EP2021/084323.
- Step b) is carried out in the presence of less than 0.2 moles of salt per mole of diamine used.
- step b) is carried out in the presence of 0 to 0.19, from 0 to 0.15, from 0 to 0.1, from 0 to 0.05, from 0 to 0.02, from 0 to 0.01 or 0 moles of salt per mole of diamine used.
- the salt may in particular be as defined previously for component b).
- Step b) can be carried out in the presence of less than 0.2 moles of surfactant per mole of diamine used.
- step b) is carried out in the presence of 0 to 0.19, from 0 to 0.15, from 0 to 0.1, from 0 to 0.05, from 0 to 0.02, from 0 to 0.01 or 0 moles of surfactant per mole of diamine used.
- the surfactant may in particular be as defined previously for component b).
- the molar ratio between the total quantity of monoisocyanate adduct and the total quantity of diamine in step b) can range from 1.8 to 2.2.
- the molar ratio between the total quantity of monoisocyanate adduct and the total quantity of diamine in step b) ranges from 1.9 to 2.1, more particularly from 1.95 to 2.05, even more particularly from 1.98 to 2.02.
- a solvent can be added in step a) and/or in step b) and/or between step a) and step b) in order to reduce the viscosity of the composition and solubilize the compounds obtained.
- step a) and/or step b) can be carried out in the presence of an aprotic solvent.
- the viscosity of the reaction medium obtained at the end of step a) can be lowered by adding aprotic solvent.
- the aprotic solvent may in particular be as defined above for component b).
- the process for preparing component b) can be carried out using an alcohol or a mixture of alcohols in step a).
- H2N-R3-NH2 to form at least one compound of formula (!') in which the groups Ri are identical and as defined previously for R';
- R2 and R3 are as defined previously.
- the alcohol R1-OH of the first embodiment may in particular be a linear or branched C1-C30 alkyl substituted by OH.
- R4 and R5, as well as the alcohols of formula R4-OH and R5-OH may in particular be as defined above for the compound of formula I.
- the R4-OH alcohol can be more hydrophobic than the R5-OH alcohol; and/or the alcohol R5-OH may have a higher molecular mass than the alcohol R4-OH.
- the molecular masses of the alcohols R4-OH and R5-OH may be different.
- R4-OH may have a lower molecular mass than that of R5-OH.
- the difference between the molecular mass of R4-OH and that of R5-OH can be at least 50, at least 100, at least 150, at least 200, at least 300 or at least 350 g/mol.
- R4-OH and R5-OH may be different.
- R4-OH alcohol may be more hydrophobic than R5-OH alcohol.
- the alcohols R4-OH and R5-OH can be alcohols of formula HO-[(CR a Rb)ii-O] m -Y having different molecular masses, Y, R a , Rb, n and m being as defined previously.
- the alcohol R4-OH can be a linear or branched C1-C30 alkyl substituted by OH and the alcohol R5-OH can be an alcohol of formula HO-[(CR a Rb)nO] m -Y in which Y, R a , Rb, n and m are as defined previously.
- the total molar quantity of the alcohol R5-OH in particular of the least hydrophobic alcohol and/or of the alcohol having the highest molecular mass, may in particular represent more than 20% , in particular from 25 to 95%, 30 to 90%, 35 to 85%, or 40 to 80%, of the total molar quantity of the alcohols R4-OH and R5-OH introduced in step a).
- the alcohol R5-OH in particular the least hydrophobic alcohol and/or the alcohol having the highest molecular mass
- the alcohol R4-OH in particular the most hydrophobic alcohol and/or the alcohol having the lowest molecular mass
- the groups R 4 , R5 and R ⁇ , as well as the alcohols of formula R 4 -OH, R5-OH and R ⁇ -OH may in particular be as defined previously for the compound of formula I.
- the R4-OH alcohol can be more hydrophobic than the R5-OH alcohol and/or the R ⁇ -OH alcohol; and/or the alcohol R4-OH may have a molecular mass lower than that of the alcohol R5-OH and/or that of the alcohol R ⁇ -OH.
- the molecular masses of the alcohols R4-OH, R5-OH and R ⁇ -OH may be different.
- R4-OH may have a lower molecular mass than that of R5-OH; and/or R4-OH may have a molecular mass lower than that of R ⁇ -OH; and/or R5-OH may have a molecular mass lower than that of R ⁇ -OH.
- the R4-OH alcohol has a lower molecular mass than those of the R5-OH and R ⁇ -OH alcohols.
- the difference between the molecular mass of R4-OH and that of R5-OH; and/or the difference between the molecular mass of R4-OH and that of R ⁇ -OH; and/or the difference between the molecular mass of R5-OH and that of R ⁇ -OH may be at least 50, at least 100, at least 150, at least 200, at least 300 or at least 350 g/mol.
- R4-OH, R5-OH and R ⁇ -OH can have different chemical natures.
- R4-OH may be more hydrophobic than R5-OH; and/or R4-OH may be more hydrophobic than R ⁇ -OH; and/or R5-OH may be more hydrophobic than R ⁇ -OH.
- the R4-OH alcohol is more hydrophobic than the R5-OH and R ⁇ -OH alcohols.
- the alcohol R4-OH can be a linear or branched C1-C30 alkyl substituted by OH and the alcohols R5-OH and R ⁇ -OH can be alcohols of formula HO-[(CR a Rb )ii-O] m -Y having different molecular masses, Y, R a , Rb, n and m being as defined above.
- the total molar quantity of the alcohols R5-OH and R ⁇ -OH in particular the total molar quantity of the least hydrophobic alcohols and/or the alcohols having the highest molecular masses, may in particular represent more than 20%, in particular 25 at 95%, 30 to 90%, 35 to 85%, or 40 to 80%, of the total molar quantity of the alcohols R4-OH, R5-OH and R ⁇ -OH introduced in step a).
- the alcohols R5-OH and R ⁇ -OH in particular the less hydrophobic alcohols and/or the alcohols having the highest molecular masses, can in particular be reacted with the diisocyanate before the alcohol R4-OH, in particular the most hydrophobic alcohol and/or the alcohol having the lowest molecular mass, is introduced into the reaction mixture of step a).
- composition according to the invention comprises a polymerizable component and a thixotropic additive as described above.
- the composition may in particular comprise from 50 to 99.95%, in particular from 70 to 99.9%, more particularly from 80 to 99.8%, more particularly still 90 to 99.75% by weight of component a) relative to the weight of the composition.
- the thixotropic additive can in particular be added in a quantity sufficient to increase the viscosity and/or confer thixotropic properties to the composition according to the invention.
- the composition may in particular comprise from 0.05 to 50%, in particular from 0.1 to 30%, more particularly from 0.2 to 20%, more particularly still 0.25 to 10% by weight of component b) relative to to the weight of the composition.
- the composition may in particular have a viscosity greater than the viscosity of a composition which does not comprise component b) or which comprises an insufficient quantity of component b), the viscosity being measured at 25°C at low shear (0.01 s ' 1 )-
- the composition is a coating, molding, putty, adhesive, liquid sealant system, composite material, chemical sealant system or dental material composition.
- composition according to the invention may further comprise one or more additional components chosen from fillers, plasticizers, wetting agents, pigments, antioxidants, free radical inhibitors, UV absorbers, light stabilizers and mixtures of these.
- the composition according to the invention may comprise a filler, in particular a filler chosen from a mineral filler, an organic filler or mixtures thereof.
- the composition may comprise a mineral filler, in particular chosen from gravel, marble, granite, quartz, diatomaceous earth, feldspar, mica, gypsum, glass beads, powder of stone, limestone, ceramic, clay, clay, carbon black, graphite, sand, silica, alumina, titanium dioxide, magnesium oxide , zirconium dioxide, talc, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, zirconium hydroxide, calcium phosphate, calcium carbonate, calcium sulfate, barium sulfate and their mixtures.
- the composition may comprise an organic filler, in particular chosen from polymer particles such as polyolefin particles (in particular polyethylene, polytetrafluoroethylene or polypropylene particles), polyester particles, polyether particles, polymer particles ( meth)acrylic (in particular polymethyl methacrylate particles), polyurethane particles, polyamide particles (in particular Orgasol® type), styrene-maleic copolymer particles; natural or synthetic waxes such as paraffin, microcrystalline wax, ceresin, montan wax, beeswax, candelilla wax, carnauba wax, rice bran wax, Japanese wax, soy wax, rapeseed wax, palm, spermaceti, shea butter, cocoa butter, sadearin, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated cottonseed oil, hydrogenated rapeseed oil, hydrogenated soybean oil, hydrogenated palm oil; gums such as guar gum and xanthan gum; and their mixtures.
- polymer particles such as polyo
- the composition may in particular comprise from 0 to 70%, in particular from 10 to 60%, more particularly from 20 to 50%, by weight of filler relative to the weight of the composition.
- composition according to the invention may comprise a reinforcement, more particularly a reinforcement chosen from plant fibers, glass fibers, carbon fibers, carbon nanotubes, polyester fibers, aramid fibers and mixtures of these.
- the composition may in particular comprise from 0 to 70%, in particular from 10 to 60%, more particularly from 20 to 50%, by weight of reinforcement relative to the weight of the composition.
- composition according to the invention may comprise a tackifying resin; in particular a possibly modified rosin resin.
- composition according to the invention may also comprise a radical initiator.
- the radical initiator can in particular make it possible to initiate the polymerization of component a).
- the radical initiator may in particular be a peroxide compound or an azo compound, in particular a peroxide.
- An example of a suitable azo compound is razobisisobutyronitrile (AIBN).
- a peroxide compound is a compound comprising a peroxide group of formula -O-O-.
- a peroxide compound can advantageously be in a stabilized
- Suitable peroxide compounds are dibenzoyl peroxide, dilauroyl peroxide, diisopropyl peroxide, tert-butyl hydroperoxide, cumene hydroperoxide, cyclohexanone peroxide, methyl ethyl ketone peroxide, tert-butyl peroxyoctoate. butyl, tert-butyl peroxybenzoate, dicumyl peroxide, 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane, tert-butyl peroxymaleate and mixtures thereof.
- the radical initiator can be benzoyl peroxide.
- the composition may in particular comprise a quantity of radical initiator sufficient to obtain complete polymerization of component a).
- the composition may comprise from 0.05 to 10%, from 0.1 to 5%, from 0.5 to 5% or from 0.5 to 3% by weight of radical initiator relative to the weight of the component. has).
- composition according to the invention may also comprise an activator of the radical initiator.
- An activator of the radical initiator can in particular make it possible to activate the radical initiator at room temperature (20-25°C) in order to initiate the polymerization of component a).
- the activator of the radical initiator may in particular comprise a tertiary amine or a redox couple.
- the radical initiator can be brought into contact with component a) just before application of the composition by the end user.
- the present invention may also relate to a two-component system comprising:
- a second cartridge comprising the composition according to the invention and possibly an activator of the radical initiator; the first cartridge being kept separate from the second cartridge.
- the containers of the first cartridge and the second cartridge are intended to be brought into contact shortly before applying the composition to a substrate.
- the invention may also relate to a process for preparing a crosslinked product comprising the following steps:
- composition according to the invention with a radical initiator and possibly an activator of the radical initiator to form a mixture;
- the crosslinked product may in particular be a coating, a molding, a putty, an adhesive, a liquid sealing system, a composite material, a chemical sealing system or a dental material.
- the mixture can in particular be applied to the surface of a substrate to be coated or sealed.
- the mixture can be applied to the surface of a substrate intended to be adhered to another substrate.
- the mixture can be applied to fill the gap between two adjacent substrates or to fill holes in the surface of a substrate.
- the mixture can be applied to a substrate comprising reinforcing fibers to form a composite material.
- the mixture can be applied into a mold-shaped substrate.
- the invention also relates to the use of an additive comprising a diurea-diurethane compound and containing less than 0.1 moles of salt per urea group in the additive (excluding any possible aprotic solvent) to increase the viscosity and/or confer thixotropic properties to a polymerizable component comprising a (meth)acrylate functionalized compound.
- Said additive may in particular correspond to component b) as described above for the composition according to the invention.
- the polymerizable component may in particular correspond to component a) as described above for the composition according to the invention.
- the invention is illustrated by the following non-limiting examples.
- the thixotropic additive 1 according to the invention is prepared as described in Example 8 of the patent application filed under number PCT/EP2021/084323 (additive based on diurea-diurethane without LiCl).
- the comparative thixotropic additive Cl corresponds to the commercial product Crayvallac® LA-350 available from Arkema (diurea-diurethane additive containing more than 0.1 mol% of LiCl per urea group).
- Comparative Thixotropic Additive C2 (AT C2)
- the comparative thixotropic additive C2 corresponds to the commercial product RHEOBYK® D-420 available from B YK (diurea-diurethane additive containing more than 0.1 mol % of LiCl per urea group)
- compositions Compositions based on monomer functionalized by (meth)acrylate
- compositions were prepared in a 50 mL bottle, using a high-speed disperser equipped with a deflocculator.
- the components namely 1 g of thixotropic additive and 19 g of (meth)acrylate functionalized monomer, were introduced into the vial. Then the mixture was homogenized with stirring for 1 minute at 1000 rpm at 20°C. After this dispersion phase, the mixture was left at 20°C without stirring for a minimum of 10 min.
- compositions are described in the table below (1% by weight of thixotropic additive relative to the weight of the composition):
- compositions were prepared in a 250 mL bottle using a high-speed disperser equipped with a deflocculator.
- compositions based on a compound functionalized by (meth)acrylate was prepared in a 50 mL bottle according to a protocol similar to that described for Examples Ia to C2e.
- the desired quantities of AT2 thixotropic additive and Elium® 190 resin were added to the bottle.
- the mixture was homogenized with stirring, using a high-speed disperser equipped with a deflocculator, for 30 seconds at 800 rpm at 20°C. After this dispersion phase, the mixture was left at 20°C without stirring for a minimum of 10 min.
- thixotropic additive used to prepare the compositions are described in the table below (% by weight of thixotropic additive relative to the weight of the composition):
- the mixture of compounds functionalized by (meth)acrylate was previously prepared, as follows: In a 250 mL vial, 97.7 g of MAM and 2.3 g of CN981 were introduced and stirred at 20° C, using a high speed disperser equipped with a deflocculator, until a homogeneous mixture is achieved. Then the desired quantity of Omyacarb® 10 AV filler was added and dispersed using the same high speed disperser equipped with a deflocculator for 10 minutes at 2000 rpm. Then, in a 50 mL vial, the desired quantities of thixotropic additive AT 2 and the previously prepared MAM/CN981/filler mixture were introduced into the vial.
- the mixture was then homogenized with stirring, using a high-speed disperser equipped with a deflocculator, for 5 minutes at 1500 rpm at 20°C. After this dispersion phase, the mixture was left at 20°C without stirring for a minimum of 10 min.
- the performance of the thixotropic additive is evaluated by visual characterization of the compositions, after having been left at 20°C (without stirring) for 1 hour, 24 hours or 1 week.
- a rating scale is defined as follows to allow comparison of samples. [Table 6]
- Viscosity measurements were carried out in accordance with standard NF EN ISO 2555 using a Brookfield® viscometer at 22°C (mobile: S63). A cylindrical mobile unit rotates at a constant speed around its axis in the product to be examined. The resistance which is exerted by the fluid on the mobile depends on the viscosity of the product. This resistance causes the spiral spring to twist, which is translated into a viscosity value.
- the thixo index 5/50 corresponds to the ratio between viscosity at 5 rpm and viscosity at 50 rpm
- the viscosity of the compositions of examples 12 and 14 measured at 22°C, after one week is detailed in the table below:
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Paints Or Removers (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polymerisation Methods In General (AREA)
- Graft Or Block Polymers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2205511A FR3136474A1 (fr) | 2022-06-08 | 2022-06-08 | Composition à base d’un composant polymérisable et d’un additif thixotropique |
| PCT/EP2023/065206 WO2023237595A1 (fr) | 2022-06-08 | 2023-06-07 | Composition à base d'un composant polymérisable et d'un additif thixotropique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4536751A1 true EP4536751A1 (fr) | 2025-04-16 |
Family
ID=82850724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23731267.3A Pending EP4536751A1 (fr) | 2022-06-08 | 2023-06-07 | Composition à base d'un composant polymérisable et d'un additif thixotropique |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20250361405A1 (fr) |
| EP (1) | EP4536751A1 (fr) |
| JP (1) | JP2025521194A (fr) |
| KR (1) | KR20250020602A (fr) |
| CN (1) | CN119343405A (fr) |
| FR (1) | FR3136474A1 (fr) |
| TW (1) | TW202407031A (fr) |
| WO (1) | WO2023237595A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008059702A1 (de) * | 2008-12-01 | 2010-06-02 | Byk-Chemie Gmbh | Verfahren zur Herstellung rheologisch wirksamer Harnstoffurethane in organischen Salzen |
| EP3381961B1 (fr) | 2017-04-01 | 2020-11-11 | CliQ SwissTech (Netherlands) B.V. | Composition de résine de coulée |
| FR3117124B1 (fr) * | 2020-12-07 | 2023-12-01 | Arkema France | Composition thixotropique à base de diurée-diuréthane |
-
2022
- 2022-06-08 FR FR2205511A patent/FR3136474A1/fr active Pending
-
2023
- 2023-06-07 US US18/872,486 patent/US20250361405A1/en active Pending
- 2023-06-07 KR KR1020257000176A patent/KR20250020602A/ko active Pending
- 2023-06-07 JP JP2024571821A patent/JP2025521194A/ja active Pending
- 2023-06-07 WO PCT/EP2023/065206 patent/WO2023237595A1/fr not_active Ceased
- 2023-06-07 EP EP23731267.3A patent/EP4536751A1/fr active Pending
- 2023-06-07 CN CN202380045872.7A patent/CN119343405A/zh active Pending
- 2023-06-07 TW TW112121306A patent/TW202407031A/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US20250361405A1 (en) | 2025-11-27 |
| CN119343405A (zh) | 2025-01-21 |
| TW202407031A (zh) | 2024-02-16 |
| WO2023237595A1 (fr) | 2023-12-14 |
| JP2025521194A (ja) | 2025-07-08 |
| KR20250020602A (ko) | 2025-02-11 |
| FR3136474A1 (fr) | 2023-12-15 |
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