EP3898871A1 - Composition à base de résine époxy et de polyuréthane - Google Patents
Composition à base de résine époxy et de polyuréthaneInfo
- Publication number
- EP3898871A1 EP3898871A1 EP19845613.9A EP19845613A EP3898871A1 EP 3898871 A1 EP3898871 A1 EP 3898871A1 EP 19845613 A EP19845613 A EP 19845613A EP 3898871 A1 EP3898871 A1 EP 3898871A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyurethane
- composition
- chosen
- composition according
- polyamine
- 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.)
- Withdrawn
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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09J175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
-
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- 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
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/227—Catalysts containing metal compounds of antimony, bismuth or arsenic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
- C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C08L75/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2463/00—Presence of epoxy resin
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
Definitions
- the present invention relates to a composition based on polyurethane and epoxy resin.
- the invention also relates to the use of said composition for the repair and / or the semi-structural or structural bonding of materials in the field of transport, marine or construction.
- Adhesives in the transport sector are classified in structural adhesives or elastic adhesives.
- Structural adhesives are high modulus adhesives, while elastic adhesives are low modulus adhesives.
- compositions based on epoxy and / or polyurethane are used for structural bonding in the automotive field.
- the epoxy-based compositions generally lead to adhesives having little elongation, and which therefore prove to be brittle and fragile.
- Polyurethane-based adhesive compositions generally have the drawback of using an -NCO component comprising significant residual contents of diisocyanate monomers originating from the synthesis reaction of the polyurethane prepolymer carrying NCO groups (or with NCO endings). These residual diisocyanate monomers are indeed capable of leading to a certain number of undesirable effects.
- the hydroxyl index of an alcoholic compound represents the number of hydroxyl functions per gram of product, which is expressed in the form of the equivalent number of milligrams of potash (KOH) used in the determination of hydroxyl functions, per gram of product;
- the primary alkalinity represents the number of -Nhh functions per gram of product, which is expressed in the form of the number of milliequivalents of -Nhh per gram of product. It can be measured by NMR or by potentiometry according to methods well known to those skilled in the art;
- - secondary alkalinity represents the number of -NH- functions per gram of product, which is expressed in the form of the number of milliequivalents of -NH- per gram of product. It can be measured by NMR or by potentiometry according to methods well known to those skilled in the art;
- total alkalinity represents the number of amino functions (of primary, secondary and tertiary amine type) per gram of product, which is expressed in the form of milliequivalents of HCl per gram of product.
- Total alkalinity can be determined by NMR or potentiometric assay;
- the viscosity measurement at 23 ° C (or 25 ° C) can be done using a Brookfield viscometer according to ISO 2555.
- the measurement carried out at 23 ° C (or 25 ° C) can be done using a Brookfield RVT viscometer, a needle suitable for the viscosity range and at a rotation speed of 20 revolutions per minute (rpm).
- the viscosity of a product is preferably measured at least 24 hours after manufacture of said product;
- the molar masses of the polyamines (B1) expressed in g / mole are calculated from their primary and / or total alkalinities, and from their functionality;
- the molar masses (or average molar masses in the case of mixing) of the polyamines (B2) are calculated from their chemical structures ( 1 H / 13 C NMR) and their primary and / or secondary and / or tertiary and / or tertiary alkalinities or total.
- the present invention relates to a composition, preferably adhesive, comprising:
- composition A comprising:
- At least one polyurethane P comprising at least two acrylate terminal functions
- composition B comprising:
- At least one polyamine B1 comprising at least two functions chosen from primary and secondary amines;
- composition A ranges from 51/49 to 99/1.
- composition A A.1. Composition A
- the epoxy resin can be aliphatic, cycloaliphatic, heterocyclic or aromatic.
- the epoxy resin can be monomeric or polymeric.
- the epoxy resin has a viscosity measured at 25 ° C ranging from 7 to 13,000 mPa.s, preferably from 400 to 5,000 mPa.s.
- the epoxy resins are chosen from polyglycidyl ethers of polyphenolic compounds, preferably comprising from 2 to 6 glycidyl ether functions per mole of resin.
- a phenolic compound is a compound having at least two aromatic hydroxyl groups.
- the phenolic compounds can be chosen from the group consisting of resorcinol, catechol, hydroquinone, bisphenol A (2,2-bis- (4-hydroxyphenyl) propane), bisphenol AP (1, 1-bis- (4 -hydroxyphenyl) -1-phenylethane), bisphenol AF (2,2-bis- (4-hydroxyphenyl) -hexafluoropropane), bisphenol B ((2,2-bis- (4-hydroxyphenyl) butane), bisphenol BP (bis- (4-hydroxyphenyl) -diphenylmethane), bisphenol C (2,2-bis- (3-methyl-4-hydroxyphenyl) propane), bisphenol Cil (bis (4-hydroxyphenyl) -2,2- dichloroethylene), bisphenol E (1, 1-bis- (4-hydroxyphenyl) ethane), bisphenol F (bis (4-hydroxyphenyl) -2,2-dichloroethylene), bisphenol FL (4.4 '- (9H-fluoren- 9-ylidene) bisphenol, bis
- the epoxy resin can have an epoxy functional content ranging from 0.3 to 10.8 meq per gram of resin.
- the epoxy functionality of the epoxy resin can range from 2 to 6.
- the epoxy functionality of the epoxy resin is the average number of epoxy functions per mole of epoxy resin.
- the resins can be chosen from the following resins:
- - I represents a number ranging from 0 to 8, preferably from 0 to 4,
- each R ′ represents, independently of each other, an alkyl radical comprising from 1 to 20 carbon atoms, preferably a methyl;
- each of R ', R j , R k , and R' represents one of the following radicals: H; a linear or branched, cyclic or aliphatic alkyl radical, comprising from 1 to 10 carbon atoms; an aryl radical comprising from 6 to 12 carbon atoms; or a radical -CF 3 ;
- Each x represents an integer ranging from 0 to 4, preferably x being 0 or 1;
- - n is an integer ranging from 1 to 25, preferably from 1 to 5;
- each of R a and R b is, independently of one another, one of the following radicals: H; a linear or branched, cyclic or aliphatic alkyl radical, comprising from 1 to 10 carbon atoms; an aryl radical comprising from 6 to 12 carbon atoms; or a radical -CF 3 .
- mixture means a mixture of several resins mentioned above. It may for example be a mixture of resins of formula (I) different, or else a mixture of a resin of formula (I) with a resin of formula (II), or else any other possible mixture.
- the resins of the above-mentioned formula (II) are preferably those where R a and R b represent, independently of one another, H or methyl.
- composition A comprises at least one epoxy resin of the above-mentioned formula (I), and in particular of the above-mentioned formula (1-1).
- epoxy resins are typically available commercially. Mention may for example be made of the DER TM 331 and DER TM 383 resins sold by the company DOW CHEMICALS, the EPON 862 resin sold by HEXION SPECIALITY CHEMICALS, the EPOSIR® resins based on bisphenol A sold by SIR INDUSTRIAL (for example EPOSIR® 7120, EPOSIR® resins based on bisphenol A / bisphenol F (for example EPOSIR® F556).
- the polyurethane P according to the invention comprises at least two terminal acrylate functions.
- the polyurethane P according to the invention can have an acrylate function content ranging from 0.2 to 3 meq per gram of polyurethane P, preferably from 0.5 to 2 meq per gram of polyurethane P, preferably from 0.90 to 1 , 3 meq per gram of polyurethane P, and advantageously from 0.90 to 1.2 meq per gram of polyurethane P.
- the acrylate functionality of polyurethane P can range from 1 to 4, preferably from 2 to 3.
- the acrylate functionality is the average number of acrylate functions per mole of polyurethane P.
- the aforementioned polyurethane P can have a number average molecular mass (Mn) ranging from 1000 to 50,000, preferably from 2000 to 20,000, preferably from 3000 to 15000 g / mol.
- the viscosity of polyurethane P measured at 23 ° C can range from 1 to 200,000 mPa.s, preferably from 1 to 185,000 mPa.s.
- the aforementioned polyurethane P can be obtained by reaction:
- a polyurethane comprising at least two terminal functions -OH, and at least one compound chosen from the chloride of acrylic acid or an ester of acrylic acid;
- a polyurethane comprising at least two terminal functions -OH, and at least one compound chosen from an isocyanatoalkylacrylate;
- a polyurethane comprising at least two terminal functions -NCO, and at least compound chosen from a hydroxylated ester of acrylic acid.
- the aforementioned polyurethane P is prepared by reaction of a polyurethane comprising at least two terminal functions -OH; and at least one acrylic acid chloride or at least one ester of acrylic acid.
- the aforementioned polyurethane P is prepared according to a process comprising the following stages:
- polyol preferably chosen from polyester polyols, polyether polyols, poly (ether-ester) polyols, polyene polyols, polycarbonate polyols, poly (ether carbonate) polyols, polycaprolactone polyols and their mixtures;
- NCO / OH molar ratio (r1) is strictly less than 1, preferably ranges from 0.2 to 0.8, and preferably ranges from 0.3 to 0.5;
- (r1) is the NCO / OH molar ratio corresponding to the molar ratio of the number of isocyanate groups (NCO) to the number of hydroxyl groups (OH) carried by all of the polyisocyanate (s) and polyol (s) present in the reaction medium of step E1).
- the polyisocyanates and polyols are as described below.
- the polyurethane P according to the invention is prepared by reaction of a polyurethane comprising at least two terminal functions -OH, and at least one compound chosen from isocyanatoalkylacrylates.
- isocyanatoalkylacrylate means a compound having the following formula:
- R s represents a linear or branched alkylene radical comprising from 1 to 20 carbon atoms, preferably from 1 to 10 carbon atoms.
- the aforementioned polyurethane P is prepared according to a process comprising the following stages:
- a polyurethane with OH endings by a polyaddition reaction i) of at least one polyisocyanate, preferably chosen from diisocyanates, triisocyanates, and mixtures thereof; ii) with at least one polyol, preferably chosen from polyester polyols, polyether polyols, poly (ether-ester) polyols, polyene polyols, polycarbonate polyols, poly (ether-carbonate) polyols, polycaprolactone polyols and their mixtures;
- NCO / OH molar ratio (r3) in amounts such that the NCO / OH molar ratio (r3) is strictly less than 1, preferably ranges from 0.2 to 0.8, and preferably ranges from 0.3 to 0.5;
- step E ⁇ the reaction of the product formed at the end of step E ⁇ ) with at least one isocyanatoalkylacrylate, in amounts such that the OH / NCO molar ratio (r4) is less than or equal to 1, preferably will from 0.90 to 1.00, and preferably ranges from 0.95 to 1.00.
- (r3) is the NCO / OH molar ratio corresponding to the molar ratio of the number of isocyanate groups (NCO) to the number of hydroxyl groups (OH) carried by all of the polyisocyanate (s) and polyol (s) present in the reaction medium of step E ⁇ ).
- (r4) is the OH / NCO molar ratio corresponding to the molar ratio of the number of hydroxyl groups (OH) to the number of isocyanate groups (NCO) carried by all of the polyol (s) (polyurethane with OH endings obtained at the end of step E ⁇ and optionally residual polyol (s)) and polyisocyanate (s) (isocyanatoalkylacrylate (s) and optionally residual polyisocyanate (s)) of step E ⁇ ) present in the reaction medium of step E'2).
- the polyisocyanates and polyols are as described below.
- the aforementioned polyurethane P is prepared by reaction of a polyurethane comprising at least two terminal functions -NCO; and at least one hydroxylated ester of acrylic acid.
- hydroxylated ester of acrylic acid means an ester of acrylic acid in which the ester radical is substituted by at least one hydroxyl group.
- the hydroxylated ester of acrylic acid has the following formula (IV):
- R C represents a linear or branched divalent hydrocarbon radical, aliphatic or
- the hydroxylated ester of acrylic acid has one of the following formulas:
- R 1 represents a divalent linear or branched, aliphatic or cyclic, saturated or unsaturated alkylene radical, comprising from 2 to 22 carbon atoms, preferably of 2 to 18, preferably from 2 to 14, even more preferably from 2 to 10, and advantageously from 2 to 6 carbon atoms;
- - r is an integer ranging from 1 to 10, preferably from 1 to 5, and preferably r is equal to 5;
- - s is an integer ranging from 1 to 10, s being preferably equal to 2;
- R 2 represents a linear or branched divalent alkylene radical, aliphatic or cyclic, saturated or unsaturated, comprising from 2 to 22 carbon atoms, preferably from 2 to 18, preferably from 2 to 14, even more preferably from 2 to 10, and advantageously from 2 to 6 carbon atoms;
- R 3 represents a linear or branched, aliphatic or cyclic, saturated or unsaturated, divalent alkylene radical comprising from 2 to 4 carbon atoms
- t is an integer ranging from 2 to 120, preferably from 1 to 10, t being preferably equal to 2 or 3.
- hydroxylated esters of acrylic acid of formula (11-1) there may be mentioned for example 2-hydroxyethyl acrylate (HEA), 2-hydroxypropyl acrylate (HPA), 4-hydroxybutyl acrylate (4-HBA) , 2-hydroxybutyl acrylate (HBA) (for example available from SARTOMER, COGNIS or BASF).
- the hydroxylated ester of acrylic acid has the above-mentioned formula (IV-1), and in particular one of the following formulas (IV-1-1) or (IV-1-2):
- the aforementioned polyurethane P is prepared by a process comprising the following stages:
- At least one polyisocyanate preferably chosen from diisocyanates, triisocyanates, and mixtures thereof;
- polyol preferably chosen from polyester polyols, polyether polyols, poly (ether-ester) polyols, polyene polyols, polycarbonate polyols, poly (ether-carbonate) polyols, polycaprolactone polyols and their mixtures;
- NCO / OH molar ratio (r5) is strictly greater than 1, preferably ranges from 1.3 to 2.0, and preferably ranges from 1.5 to 1.7;
- step E22) the reaction of the product formed at the end of step E1) with at least one hydroxylated ester of acrylic acid as defined above, in amounts such as the OH / NCO molar ratio ( r6) is less than or equal to 1, preferably ranges from 0.90 to 1.00, and preferably ranges from 0.95 to 1.00.
- step E ”2) is carried out with at least one hydroxylated ester of acrylic acid as defined above, preferably of formulas (IV-1-1) or (IV-1-2) mentioned above.
- (r5) is the NCO / OH molar ratio corresponding to the molar ratio of the number of isocyanate groups (NCO) to the number of hydroxyl groups (OH) carried by all of the polyisocyanate (s) and polyol (s) present in the reaction medium of step E ”1).
- step E 1
- the calculation of the molar ratio (r5) takes into account on the one hand the NCO groups carried by all of the polyisocyanate (s) present in the reaction medium of step E ”1), and on the other hand of the OH groups carried by the polyol (s) present (s) ) in the reaction medium of step E ”1).
- (r6) is the OH / NCO molar ratio corresponding to the molar ratio of the number of hydroxyl groups (OH) to the number of isocyanate groups (NCO) carried respectively by the assembly alcohol (s), and isocyanate (s) (especially polyurethane with NCO endings and optionally the polyisocyanate (s) unreacted at the end of step E ” 1)) present in the reaction medium of step E ”2).
- the polyurethane comprising at least two terminal functions -NCO obtained in step E ”1) may have from 1 to 1.8 milliequivalents per gram of NCO functions per gram of said polyurethane, more preferably from 1 to 1.5 milliequivalents per gram of NCO functions per gram of said polyurethane.
- the polyurethane comprising at least two terminal functions -NCO obtained in step E1 ”) may have an NCO group content ranging from 4% to 7% by weight, preferably from 4.4% to 6.3% by weight per relative to the total weight of said polyurethane.
- the NCO functionality of the polyurethane comprising at least two terminal functions -NCO ranges from 2 to 3.
- the NCO functionality of the polyurethane comprising at least two NCO terminal functions is the average number of NCO functions per mole of polyurethane.
- the polyols below can also be used in step E1), E ⁇ ) or E ”1) as defined above.
- the polyol (s) used according to the invention can be chosen from those whose number-average molecular mass (Mn) ranges from 200 to 20,000 g / mol, preferably from 300 to 12,000 g / mol, and preferably from 400 to 4,000 g / mol.
- hydroxyl functionality ranges from 2 to 6, preferably from 2 to 3.
- the hydroxyl functionality is the average number of hydroxyl functions per mole of polyol.
- the polyol (s) which can be used according to the invention has (s) a hydroxyl index (IOH) (average) ranging from 5 to 840 milligrams of KOH per gram of polyol (mg KOH / g) , preferably 9 to 560 mg KOH / g, preferably 28 to 420 mg KOH / g, more preferably 100 to 400 mg KOH / g.
- IOH hydroxyl index
- the hydroxyl number of polyol (s) having a hydroxyl functionality of 2 ranges from 5 to 560 mg KOH / g, preferably from 9 to 374 mg KOH / g, preferably from 28 to 280 mg KOH / g, more preferably 100 to 280 mg KOH / g.
- the hydroxyl number of polyol (s) having a hydroxyl functionality of 3 ranges from 8 to 840 mg KOH / g, preferably 14 to 560 mg KOH / g, preferably from 42 to 420 mg KOH / g, more preferably 200 to 400 mg KOH / g.
- the polyol (s) that can be used can be chosen from polyester polyols, polyether polyols, poly (ether-ester) polyols, polyene polyols, polycarbonate polyols, poly (ether-carbonate) polyols, polycaprolactone polyols, poly (meth) acrylate polyols and their mixtures.
- the polyol (s) which can be used can be chosen from aromatic polyols, aliphatic polyols, arylaliphatic polyols and mixtures of these compounds.
- the polyester polyol (s) can (have) a number-average molecular mass ranging from 1,000 g / mol to 10,000 g / mol, preferably from 1,000 g / mol to 6,000 g / mol.
- the polyester polyols can be chosen from polyester diols and polyester triols, and preferably from polyester diols.
- polyester polyols there may be mentioned, for example:
- aliphatic (linear, branched or cyclic) or aromatic polyols such as, for example, monoethylene glycol, diethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,4-butanediol, butenediol, 1, 6-hexanediol, cyclohexane dimethanol, tricyclodecane dimethanol, neopentyl glycol, cyclohexane dimethanol, glycerol, trimethylolpropane, 1, 2,6-hexanetriol, sucrose, glucose, sorbitol, pentaerythritol, mannitol, N-methyldiethanolamine, triethanolamine, a dimeric fatty alcohol, a trimeric fatty alcohol and mixtures thereof, with
- polycarboxylic acid or its ester or anhydride derivative such as 1, 6-hexanedioic acid (adipic acid), dodecanedioic acid, azelaic acid, sebacic acid, adipic acid, acid 1,18-octadecanedioic acid, phthalic acid, isophthalic acid, terephthalic acid, succinic acid, a dimeric fatty acid, a trimeric fatty acid and mixtures of these acids, an unsaturated anhydride such as for example l maleic or phthalic anhydride, or a lactone such as for example caprolactone.
- an unsaturated anhydride such as for example l maleic or phthalic anhydride
- a lactone such as for example caprolactone.
- polyester polyols raised can be prepared in a conventional manner, and are for the most part commercially available.
- polyesters polyols one can for example quote the following products of hydroxyl functionality equal to 2:
- TONE® 0240 (marketed by UNION CARBIDE) which is a polycaprolactone of average molecular mass in number of around 2000 g / mol, and a melting point of approximately 50 ° C.
- polyester polyol having a viscosity of 180 Pa.s at 23 ° C, a number average molecular mass Mn equal to 5,500 g / mol, and a T g equal to - 50 ° C,
- KURARAY® P-6010 polyester polyol having a viscosity of 68 Pa.s at 23 ° C, an average molecular mass in number Mn equal to 6000 g / mol, and a T g equal at -64 ° C,
- KURARAY® P-10010 polyester polyol having a viscosity of 687 Pa.s at 23 ° C, and a number average molecular mass Mn equal to 10,000 g / mol
- - "REALKYD® XTR 10410” polyester polyol having an average molecular mass in number Mn close to 1000 g / mol and whose hydroxyl index ranges from 108 to 1116 mg KOH / g. It is a product resulting from the condensation of adipic acid, diethylene glycol and monoethylene glycol,
- DEKATOL® 3008 (marketed by the company BOSTIK) with an average molar mass in number Mn of around 1060 g / mol and whose hydroxyl index ranges from 102 to 112 mg KOH / g. It is a product of the condensation of adipic acid, diethylene glycol and monoethylene glycol.
- the polyether polyol (s) can (wind) have a number-average molecular mass ranging from 200 to 20,000 g / mol, preferably from 300 to 12,000 g / mol, and preferably from 400 at 4,000 g / mol.
- the polyether polyol (s) which can be used according to the invention is (are) preferably chosen from polyoxyalkylene polyols, the alkylene part of which, linear or branched, comprises from 1 to 4 carbon atoms, more preferably from 2 to 3 carbon atoms.
- the polyether polyol (s) which can be used according to the invention is (are) preferably chosen from polyoxyalkylene diols or polyoxyalkylene triols, the alkylene part of which, linear or branched, comprises from 1 with 4 carbon atoms, more preferably from 2 to 3 carbon atoms.
- polyoxypropylene diols or triols also known as polypropylene glycol (PPG) diols or triols
- PPG polypropylene glycol
- Mn number average molecular weight
- polyoxyethylene diols or triols also known as polyethylene glycol (PEG) diols or triols
- Mn number average molecular weight
- the polyether polyols raised can be prepared in a conventional manner, and are widely available commercially. They can be obtained by polymerization of the corresponding alkylene oxide in the presence of a basic catalyst (for example potash) or a catalyst based on a double metal-cyanide complex.
- a basic catalyst for example potash
- a catalyst based on a double metal-cyanide complex for example
- polyether diol By way of example of a polyether diol, mention may be made of the polyoxypropylene diol sold under the name "VORANOL® P 400" by the company DOW with a number average molecular mass (Mn) close to 400 g / mol and whose hydroxyl number ranges from 250 to 270 mg KOH / g.
- Mn number average molecular mass
- polyether triol By way of example of polyether triol, mention may be made of polyoxypropylene triol sold under the name "VORANOL® CP 450" by the company DOW, mass number average molecular (Mn) close to 450 g / mol and whose hydroxyl index ranges from 370 to 396 mg KOH / g, or the polyoxypropylene triol marketed under the name "VORANOL® CP3355" by the company DOW, of molecular mass number average close to 3,554 g / mol.
- Mn mass number average molecular
- the polyene polyol (s) which can be used according to the invention can be chosen preferably from polyenes comprising terminal hydroxyl groups, and their corresponding hydrogenated or epoxidized derivatives, having in particular a number average molecular mass (Mn) ranging from 1,000 to 10,000 g / mol, preferably from 1,000 to 5,000 g / mol.
- Mn number average molecular mass
- the polyene polyol (s) which can be used according to the invention is (are) chosen from polybutadienes or polyisoprenes comprising terminal hydroxyl groups, optionally hydrogenated or epoxidized.
- the polyene polyol (s) which can be used according to the invention is (are) chosen from homopolymers and copolymers of butadiene and / or isoprene comprising terminal hydroxyl groups, optionally hydrogenated or epoxidized .
- terminal hydroxyl groups of a polyene polyol means the hydroxyl groups located at the ends of the main chain of the polyene polyol.
- the hydrogenated derivatives mentioned above can be obtained by total or partial hydrogenation of the double bonds of a polydiene comprising terminal hydroxyl groups, and are therefore saturated (s) or unsaturated (s).
- the epoxidized derivatives mentioned above can be obtained by chemoselective epoxidation of the double bonds of the main chain of a polyene having terminal hydroxyl groups, and therefore comprise at least one epoxy group in its main chain.
- polyene polyols there may be mentioned:
- polycarbonate polyols can be chosen from polycarbonate diols or triols, in particular having a number average molecular weight (M n ) ranging from 300 to 12,000 g / mol.
- CONVERGE® POLYOL 212-10 and "CONVERGE® POLYOL 212-20” marketed by the company NOVOMER respectively of molecular mass in number (M n ) equal to 1000 and 2000 g / mol whose hydroxyl indices are respectively 1 12 and 56 mg KOH / g,
- the polycaprolactone polyol (s), which can be used according to the invention, can (wind) have a number-average molecular mass (Mn) ranging from 240 to 10,000 g / mol, and preferably from 1,000 to 6,000 g / mol.
- Mn number-average molecular mass
- polycaprolactone polyol s
- CAPA TM polyols sold by PERSTORP, such as for example:
- poly (ether-ester) polyols mention may, for example, be made of those described in WO2013 / 1 10512, WO2012 / 02048 or US 7,893,189.
- the poly (meth) acrylate polyol (s) which can be used according to the invention can (wind) have a number-average molecular mass (Mn) ranging from 1000 to 22,000 g / mol, preferably from 1000 to 10 000 g / mol, and even more preferably from 1000 to 6000 g / mol.
- Mn number-average molecular mass
- the poly (meth) acrylate polyol (s) which can be used according to the invention is (are) preferably chosen from homopolymers, copolymers and terpolymers of acrylate monomer (s) and / or methacrylate (s).
- the poly (meth) acrylate polyol (s) which can be used according to the invention is (are) preferably chosen from poly (meth) acrylates and poly (meth) acrylates triols ( telechelics).
- step E ”1) is carried out in the presence of at least one polyether polyol, preferably at least one polyether diol.
- polyisocyanate (s) which can be used according to the invention in steps E1), E ⁇ ) and E ”1) can be added sequentially or reacted in the form of a mixture.
- the polyisocyanate (s) which can be used are diisocyanate (s), preferably chosen from the group consisting of isophorone diisocyanate (I PDI), hexamethylene diisocyanate (HDI) , heptane diisocyanate, octane diisocyanate, nonane diisocyanate, decane diisocyanate, undecane diisocyanate, dodecane diisocyanate, 4,4'-methylenebis (cyclohexylisocyanate) (4,4'-HMDI), norbornane diisocyanate, norbornene diisocyanate, 1,4-cyclohexane diisocyanate (CHDI), methylcyclohexane diisocyanate, ethylcyclohexane diisocyanate, propylcyclohexane diisocyanate, methyldiethylcyclohexane diiso
- R c represents a saturated or unsaturated hydrocarbon chain, cyclic or acyclic, linear or branched, comprising from 1 to 20 carbon atoms, preferably from 6 to 14 carbon atoms
- R d represents a divalent alkylene group, linear or branched, having from 2 to 4 carbon atoms, and preferably a divalent propylene group
- the allophanate of above-mentioned formula (Y) is such that p, q, R c and R d are chosen such that the above HDI allophanate derivative comprises an NCO isocyanate group content ranging from 12 to 14 % by weight relative to the weight of said derivative.
- the polyisocyanate (s) which can be used are triisocyanate (s), preferably chosen from isocyanurates, biurets, and adducts of diisocyanates and triols.
- the isocyanurate (s) can be used in the form of a technical mixture of (poly) isocyanurate (s) of purity greater than or equal to 70% by weight isocyanurate (s).
- the diisocyanate isocyanurate (s) which can be used according to the invention corresponds (s) to the following general formula (W):
- R 4 represents an alkylene group, linear or branched, cyclic, aliphatic, arylaliphatic or aromatic, comprising from 4 to 9 carbon atoms,
- NCO groups are not linked by a covalent bond to a carbon atom forming part of an aromatic hydrocarbon ring such as a phenyl group.
- diisocyanate trimers which can be used according to the invention, there may be mentioned:
- adducts of diisocyanates and triols which can be used according to the invention, mention may be made of the adduct of meta-xylylene diisocyanate and trimethylolpropane, as shown below.
- This adduct is marketed for example by the company MITSUI CHEMICALS, Inc. under the name "TAKENATE® D-1 10N”.
- the polyisocyanate (s) which can be used for preparing the polyurethane used according to the invention are widely available commercially.
- the polyisocyanate (s) is (are) chosen from toluene diisocyanate (in particular the 2,4 TDI isomer, the 2,6-TDI isomer or their mixtures), the meta- xylylene, HDI isocyanurate, and mixtures thereof.
- the polyisocyanate is toluene diisocyanate.
- step E1), E ⁇ ) or E ”1) can be carried out at a temperature below 95 ° C and / or under anhydrous conditions.
- the polyaddition reaction of step E1), E ⁇ ) or E ”1) can be carried out in the presence or not of at least one reaction catalyst.
- the reaction catalyst (s) which can be used during the polyaddition reaction of step E1), E ⁇ ) or E ”1) can be any catalyst known to those skilled in the art for catalyzing the formation of polyurethane by reacting at least one polyisocyanate with at least one polyol.
- An amount of up to 0.3% by weight of catalyst (s) relative to the weight of the reaction medium of step E1), E ⁇ ) or E ”1) can be used.
- the transesterification reaction of step E2) can be carried out at a temperature above 110 ° C, preferably above 120 ° C.
- acrylic acid esters mention may, for example, be made of methyl acrylate, butyl acrylate, propyl acrylate and pentyl acrylate.
- step E2 In the presence of acrylic acid chloride, the reaction of step E2) can be carried out at a temperature preferably below 95 ° C., under preferably anhydrous conditions.
- reaction of step E’2 can be carried out at a temperature preferably below 95 ° C., under preferably anhydrous conditions.
- step E In the presence of ester (s) hydroxylated (s) of acrylic acid, or amide (s) hydroxylated (s) of acrylic acid, the reaction of step E ”2) can be carried out at a temperature preferably below 95 ° C., under preferably anhydrous conditions.
- the hydroxylated esters of acrylic acid can be used either pure or in the form of a mixture of different hydroxylated esters of acrylic acid having an average hydroxyl number of said mixture ranging from 8 to 483 mg KOH / g of said mixed.
- composition A does not comprise a multifunctional polyol (meth) acrylate ester.
- the multifunctional polyol (meth) acrylate ester is a polyol comprising at least two OH functions in the form of an ester of acrylic acid or of methacrylic acid.
- the multifunctional polyol (meth) acrylate ester can comprise non-esterified OH functions.
- Multifunctional polyol (meth) acrylate esters can be obtained from diols or triols, optionally ethoxylated and / or propoxylated.
- HDDA 1,6-hexanediol diacrylate
- DPGDA dipropylene glycol diacrylate
- TPGDA tripropylene glycol diacrylate
- MPDA 3-methyl-1,5-pentadio
- Composition A can optionally comprise at least one aliphatic urethane-acrylate oligomer.
- CN925® aliphatic tetrafunctional urethane-acrylate having an Mn of approximately 2,500 g / mol
- CN 9245S® aliphatic trifunctional urethane-acrylate having a Mn of approximately 5,000 g / mol
- Composition A can have a viscosity measured at room temperature (23 ° C) ranging from 100 to 250,000 mPa.s, preferably ranging from 10,000 to 80,000 mPa.s.
- the weight ratio polyurethane (s) P / epoxy resin (s) in composition A ranges from 55/45 to 95/5, preferably from 60/40 to 90/10, advantageously from 65/35 to 85/25 , and for example the ratio is 70/30.
- composition B A.2. Composition B
- Composition B according to the invention comprises:
- At least one polyamine B1 comprising at least two functions chosen from primary and secondary amines;
- At least one polyamine B2 different from polyamine B1, comprising at least two functions chosen from primary and secondary amines.
- polyamine B1 comprises at least two primary amine functions
- Polyamine B1 can have a primary alkalinity greater than or equal to 7 meq / g, preferably greater than or equal to 10 meq / g, preferably greater than or equal to 13 meq / g.
- the polyamine B1 has the following formula (V):
- Z represents a divalent hydrocarbon radical, linear or branched, cyclic, aliphatic or aromatic, saturated or unsaturated, preferably comprising from 1 to 22 carbon atoms, said hydrocarbon radical being optionally interrupted by one or more heteroatoms chosen from -S- , -O- and / or one or more divalent tertiary amine groups - NR '” - with R representing a linear or branched, saturated or unsaturated alkyl group, comprising 1 to 22 carbon atoms, preferably 1 to 18, preferably from 1 to 14, preferably from 1 to 10 and advantageously from 1 to 6 carbon atoms.
- the polyamine B1 corresponds to one of the formulas (V-1), (V-2) or (V3) below:
- R 4 is a linear or branched divalent alkylene radical, or a divalent arylene radical, comprising from 1 to 18 carbon atoms, R 4 preferably representing a linear alkylene radical comprising 6, 10 or 12 carbon atoms;
- R 5 represents a linear or branched divalent alkylene radical comprising from 2 to 12 carbon atoms, preferably ethylene or propylene,
- R 6 represents a linear or branched divalent alkylene radical comprising from 2 to 10 carbon atoms, preferably ethylene or propylene,
- R 7 represents H or a linear or branched, saturated or unsaturated alkyl group, comprising from 1 to 10 carbon atoms, preferably 1 to 4 carbon atoms, X preferably representing O ;
- - n 3 is an integer ranging from 0 to 4, and advantageously being equal to 1 or 2;
- Polyamine B1 is preferably a polyamine of formula (V-2) above, in which X a preferably represents O, and n 3 is preferably 1.
- polyamine B1 is chosen from diethylenetriamine (DETA): H2N- CH2-CH2-NH-CH2-CH2-NH2, 1, 10-decanediamine: H 2 N- (CH 2 ) IO-NH 2 , 1, 12 dodecanediamine: H2N- (CH2) i2-NH2, 1, 6-hexametylenediamine (HMDA), polyetherdiamines of formulas H2N-CH2-CH2-O-CH2-CH2-O-CH2-CH2-NH2 and H 2 N-CH 2 -CH 2 - CH2-O-CH2-CH2-O-CH2-CH2-NH2 (available for example under the trade names "JEFFAMINE® EDR 148" and "JEFFAMINE® EDR 176" respectively from HUNTSMAN company).
- DETA diethylenetriamine
- 10-decanediamine H 2 N- (CH 2 ) IO-NH 2
- 1, 12 dodecanediamine: H2N- (CH2) i
- the polyamine B2 comprises at least two, preferably at least three, primary amine functions -IMH2.
- the polyamine B2 or the mixture of polyamines B2 may have a primary alkalinity strictly less than 10.00 meq / g, preferably between 3.0 and less than 10.00 meq / g.
- the polyamine B2 is chosen from the group consisting of polyetheramines, polyamidoamines, fatty dimer or trimer amines, polyethyleneimines (PEI), polyethyleneimines dendrimers, polypropyleneimines (PPI), polypropyleneimines dendrimers, polyallylamines , poly (propylene-ethylene) imines, and mixtures thereof, said polyamine preferably having a primary alkalinity strictly less than 10.00 meq / g, preferably between 3.0 and less than 10.00 meq / g.
- the polyamine B2 is chosen from polyetheramines, in particular chosen from:
- x is an integer such that the primary alkalinity of the polyetherdiamine is between 0.5 and less than 10 meq / g, preferably x ranging from 2 to 68 (such polyetherdiamines are for example marketed under the name JEFFAMINES D-230, D-400, D-2000 and D-4000 by the company HUNTSMAN and have respective primary alkalinities of 8.7, 5.0, 1.0 and 0.5 meq / g);
- x, y and z are whole numbers such that the primary alkalinity is between 1 and less than 10 meq / g, preferably y ranging from 2 to 39 and x + z ranging from 1 to 6
- polyether diamines are marketed for example under the name JEFFAMINES HK-51 1, ED-600, ED-900 and ED-2003 by the company HUNTSMAN and have respective primary alkalinities of 9.1, 3.3, 2.2 and 1, 0 meq / g);
- R is a hydrogen atom or a C1 to C2 alkyl group
- x, y, z and n are whole numbers, such that the primary alkalinity of polyether triamine is between 0.5 and less than 10 meq / g, preferably n ranging from 0 to 1 and x + y + z ranging from 5 to 85
- polyethertriamines are sold, for example, under the name JEFFAMINES T-403, T-3000, and T-5000 by the company HUNTSMAN and have respective primary alkalinities of 6.8, 1.0 and 0.6 meq / g).
- the polyamine B2 is chosen from dimer and trimer fatty amines comprising two or three primary amine groups of primary alkalinity ranging from 3.28 meq / g to 5.20 meq / g.
- These dimeric and trimeric fatty amines can be obtained from corresponding dimerized and trimerized fatty acids.
- partially or fully hydrogenated dimer fatty amines mention may be made of those corresponding to the following formulas:
- the dimer and trimer fatty acids used to prepare the abovementioned fatty amines can be obtained by high-temperature polymerization under pressure of monocarboxylic unsaturated fatty acids (monomeric acid), comprising from 6 to 22 carbon atoms, preferably from 12 to 20 carbon atoms, and come from plant or animal sources.
- monocarboxylic unsaturated fatty acids monomeric acid
- unsaturated fatty acids can be cited, Cie acids having one or two double bonds (respectively oleic or linoleic acid) obtained from tall oil which is a by-product of the manufacture of paper pulp.
- a technical mixture is obtained in particular containing on average 30-35% by weight of fatty acids monocarboxylic acids often isomerized with respect to the starting monocarboxylic unsaturated fatty acids, 60-65% by weight of dicarboxylic acids (dimer acids) comprising twice the carbon number relative to the starting monocarboxylic unsaturated fatty acids and 5-10% by weight tricarboxylic acids (trimer acids) having three times the carbon number compared to the starting monocarboxylic unsaturated fatty acids.
- dicarboxylic acids dicarboxylic acids
- trimer acids trimer acids having three times the carbon number compared to the starting monocarboxylic unsaturated fatty acids.
- the polyamine B2 is chosen from polyethyleneimines (PEI), preferably having a number average molecular mass (Mn) ranging from 450 to 25,000 g / mol and a primary alkalinity / total alkalinity ratio ranging from 0.35 to 0.45, and in particular having at least one radical of the following formula:
- LPASOL polyethyleneimines sold under the name "LUPASOL FG” of Mn having a molar mass of 800 g / mol, a primary alkalinity of 10.00 meq / g and an alkalinity total of 24.00 meq / g, a sum of primary and secondary alkalinity being 19 meq / g, a
- the polyamine B2 is chosen from polyetheramines, polyethyleneimines (PEI) as defined above, and their mixtures.
- composition B has a primary alkalinity / total alkalinity ratio ranging from 0.25 to 1.00.
- composition B can range from 90/10 to 10/90, preferably from 80/20 to 20/80, preferably from 30/70 to 70/30, even more preferably from 60/40 to 40/60, and better still is about 50/50.
- Composition B can be prepared by simple mixing of the constituents, preferably at a temperature ranging from 10 ° C to 50 ° C, preferably at room temperature, preferably using a mechanical mixer with or without addition of solvent .
- Composition A and / or B can comprise at least one additive chosen from the group consisting of fillers, catalysts, dyes, adhesion promoters, thixotropic agents, solvents, and mixtures thereof.
- Composition A and / or B may also comprise at least one solvent, preferably in an amount ranging from 10% to 50% by weight, more preferably ranging from 15% to 40% by weight, and better still ranging from 20 to 30% by weight, relative to the total weight of composition A (or B).
- the solvent can be chosen from organic and alcoholic solvents such as ethyl acetate, methyl ethyl ketone, xylene, ethanol, isopropanol, tetrahydrofuran, methyl-tetrahydrofuran, or even from " ISANE® ”(based on isoparaffins, available from TOTAL) or“ EXXOL® D80 ”(based on aliphatic hydrocarbons, available from EXXON MOBIL CHEMICAL).
- organic and alcoholic solvents such as ethyl acetate, methyl ethyl ketone, xylene, ethanol, isopropanol, tetrahydrofuran, methyl-tetrahydrofuran, or even from " ISANE® ”(based on isoparaffins, available from TOTAL) or“ EXXOL® D80 ”(based on aliphatic hydrocarbons, available from EXXON MOBIL CHEMICAL).
- the catalyst (s) can be any catalyst usually used to accelerate the addition reaction of a compound comprising a primary or secondary amine on a compound comprising an acrylate group.
- the catalyst is chosen from the group consisting of Lewis bases and Bronstedt bases whose conjugated acids have a pKa> 10, hydroxides (such as for example LiOH, NaOH, or KOH), hydrides (such as for example NaH, KH, or CaH2), carbonates (such as for example CaCC> 3, Na2CC> 3, or K2CO3), alkali metal alcoholates (such as for example sodium methylate, sodium methylate potassium, sodium ethylate, potassium tert-butoxide, titanium tetraisopropylate), and mixtures thereof.
- hydroxides such as for example LiOH, NaOH, or KOH
- hydrides such as for example NaH, KH, or CaH2
- carbonates such as for example CaCC> 3, Na2CC> 3, or K2CO3
- alkali metal alcoholates such as for example sodium methylate, sodium methylate potassium, sodium ethylate, potassium tert-butoxide, titanium tetraisopropylate
- the Lewis bases and Bronstedt bases whose conjugate acids have a pKa> 10 can typically be those described in Houben-Weyl, vol. XI / 1, (1957), page 277 ff. and in Patai, "The Chemistry of the Amino Group, pp 61-65, Interscience, New York (1968).
- the Lewis bases are chosen from the group consisting of cycloaliphatic amines, such as 1, 4-diazabicyclo [2.2.2] octane (DABCO) or diethyl ether-2,2'-morpholine (DMDEE); aliphatic tertiary amines such as, for example triethylamine, tripropylamine, tributylamine, N-methyldiethanolamine, N-methyldiisopropylamine or N-butyldiethanolamine; amidines such as, for example, 1,5-diazabicyclo [4.3.0] non-5-ene (DBN), 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU); of guanidines such as, for example, N, N, N ', N'-tetramethylguanidine, 1,5,7-triazabicyclo [4.4.0] dec-5-ene (TBD) or N-methyl triazabicyclodec
- Lewis bases which are particularly preferred according to the invention, there may be mentioned:
- DBU 1, 8-diazabicyclo [5.4.0] undec-7-ene
- DBN 1,5-diazabicyclo [4.3.0] non-5-ene
- DMDEE 2,2'-dimorpholinodiethylether
- DABCO 4-diazabicyclo [2.2.2] octane
- An amount ranging from 0.05 to 5% by weight, preferably from 0.1 to 3% by weight of catalyst (s) relative to the total weight of the composition according to the invention can be added.
- composition according to the invention can also comprise at least one organic and / or mineral filler.
- the filler (s) may / may be present in composition A and / or in composition B.
- the (or) mineral filler (s) that can be used is (are) advantageously chosen (s) so as to improve the mechanical performance of the composition according to the invention in the crosslinked state.
- any mineral filler (s) usually used in the field of adhesive compositions can be used.
- These charges are typically in the form of particles of diverse geometry. They may for example be spherical, fibrous, or have an irregular shape.
- the filler (s) is (are) chosen (s) from the group consisting of clay, quartz, carbonate fillers, kaolin, gypsum, clays, and their mixtures, preferably the filler (s) is (are) chosen from carbonate fillers, such as carbonates of alkali or alkaline earth metals, and more preferably calcium carbonate or chalk.
- These fillers can be untreated or treated, for example using an organic acid such as stearic acid, or a mixture of organic acids mainly consisting of stearic acid.
- hollow mineral microspheres such as hollow glass microspheres, and more particularly those in sodium and calcium borosilicate or in aluminosilicate.
- composition according to the invention can also comprise at least one adhesion promoter, preferably chosen from silanes, such as aminosilanes, epoxysilanes or acryloyl silanes.
- adhesion promoter (s) is (are) preferably present in composition A.
- the composition according to the invention is such that the molar ratio (r5) as defined below ranges from 0.5 to 2, preferably from 0.7 to 1, 3 preferentially from 0.8 to 1, 2:
- the present invention also relates to a ready-to-use kit, comprising composition A as defined above on the one hand and composition B as defined above on the other hand, packaged in two separate compartments.
- composition according to the invention can be in a two-component form, for example in a ready-to-use kit, comprising composition A on the one hand in a first compartment or barrel and the composition B on the other hand in a second compartment or barrel, in proportions suitable for a direct mixing of the two compositions, for example using a metering pump.
- the kit also comprises one or more means allowing the mixing of the two compositions A and B.
- the mixing means are chosen from metering pumps, static mixers of diameter adapted to the quantities used.
- the present invention also relates to the use of a composition as defined above, as an adhesive, sealant or coating, preferably as an adhesive.
- the invention also relates to the use of said composition for the repair and / or the structural or semi-structural bonding of materials in the field of transport, automobile (car, bus or truck), marine, or construction.
- the present invention also relates to a method of assembling two substrates by bonding, comprising:
- Suitable substrates are, for example, inorganic substrates such as concrete, metals or alloys (such as aluminum alloys, steel, non-ferrous metals and galvanized metals); or else organic substrates such as wood, plastics such as PVC, polycarbonate, PMMA, polyethylene, polypropylene, polyesters, epoxy resins; metal substrates and composites coated with paint.
- inorganic substrates such as concrete, metals or alloys (such as aluminum alloys, steel, non-ferrous metals and galvanized metals); or else organic substrates such as wood, plastics such as PVC, polycarbonate, PMMA, polyethylene, polypropylene, polyesters, epoxy resins; metal substrates and composites coated with paint.
- the invention also relates to the use of said composition for the repair and / or the semi-structural or structural bonding of materials in the field of transport, marine or construction.
- - BORCHI® KAT 315 available from the company BORCHERS is a Bismuth neodecanoate used as a tin-free catalyst
- - SCURANATE® TX available from the company VENCOREX is a toluene diisocyanate (TDI) having 48.1% by weight of NCO functions and comprising 95% by weight of 2,4-TDI isomer
- TDI toluene diisocyanate
- HOA 2-hydroxyethyl acrylate
- JEFFAMINE® EDR-148 available from the company HUNTSMAN is a diamine (of type B1) corresponding to the formula H2N-CH2-CH2-O-CH2-CH2-O-CH2-CH2-NH2 having a molar mass of 148 g / mol, a primary and total alkalinity of 13.50 meq / g and a primary alkalinity / total alkalinity ratio of 1.00 determined by potentiometry;
- - LUPASOL® FG available from the company BASF is a polyamine (type B2) of polyethyleneimine type (PEI) having a molar mass of 800 g / mol, a primary alkalinity of 10.00 meq / g and a total alkalinity of 24 .00 meq / g, a sum of primary and secondary alkalinity being 19 meq / g, a primary alkalinity / total alkalinity ratio of 0.42, and a determined secondary alkalinity / total alkalinity of 0.38 by 13 C NMR, ie a ratio of the sum of the primary alkalinity and the secondary alkalinity / total alkalinity of 0.79;
- PEI polyethyleneimine type
- - D.E.R. TM 331 available from DOW CHEMICALS is a liquid DGEBA resin obtained by reaction between bisphenol A and epichlorohydrin, and having an epoxy content ranging from 5.2 to 5.5 meq / g.
- the end of the reaction is followed by controlling the mass percentage of NCO functions in the medium, the latter having in theory to be approximately ...% by weight.
- the reaction is complete, the mixture is cooled to 70 ° C. and 12.4 g of 2-hydroxyethyl acrylate and 0.01 g of BORCHI KAT® 315 are introduced. The mixture is kept at 70 ° C for 6 to 8 hours until there is no longer any NCO function visible to the Infra-Red (IR) (disappearance of the characteristic band of the NCO function at approximately 2250 cm 1 ).
- IR Infra-Red
- the polyurethane obtained has a viscosity measured at 23 ° C of 59,600 mPa.s.
- Example 2 preparation of a composition A
- Composition A was prepared by mixing at room temperature (23 ° C) the polyurethane obtained in Example 1 with D.E.R. 331 in a 70/30 mass ratio (polyurethane / epoxy resin).
- compositions B which have been tested were prepared by simple mixing of the polyamine (s) B1 and / or of the polyamine (s) B2 at an ambient temperature (around 23 ° C.) in a weight ratio B1 / B2 shown below in Table 1.
- compositions A and B detailed in Examples 2 and 3 were carried out in an A / B weight ratio indicated below in Table 1.
- the principle of the measurement consists in drawing in a tensile machine, the movable jaw of which moves at a constant speed equal to 100 mm / minute, a standard test tube made up of the crosslinked composition and to record, at the moment when the rupture occurs. of the test piece, the applied tensile stress (in MPa) as well as the elongation of the test piece (in%).
- the standard test piece is dumbbell-shaped, as illustrated in international standard ISO 37 of 2011. The narrow part of the dumbbell used is 20 mm long, 4 mm wide and 500 mp ⁇ thick. Bonding tests
- the collages are made on beech or painted sheet metal sterigms from the Rocholl company. On a sterigma, an area of 25 * 12.5 mm was delimited with teflon shims 1 mm thick an area of 25 * 12.5 mm. This zone was filled with the composition to be tested, then a second sterigme of the same material was laminated.
- the assembly was maintained by forceps and placed in an air-conditioned room at 23 ° C and 50% RH (relative humidity) for one week before traction on a dynamometer. The purpose of pulling on a dynamometer is to assess the maximum force (in Mpa) to be exerted on the assembly to separate it.
- a traction machine makes it possible to subject a simple overlap joint placed between two rigid supports to a shear stress until rupture by exerting a traction on the supports parallel to the surface of the assembly and to the main axis. of the test tube.
- the result to be recorded is the force or the stress at break.
- the shear stress is applied via the movable jaw of the traction machine with a displacement at the speed of 100 mm / min. This traction method is carried out as defined by standard EN 1465 of 2009.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1873461A FR3090672B1 (fr) | 2018-12-20 | 2018-12-20 | Composition à base de résine époxy et de polyuréthane |
| PCT/FR2019/053150 WO2020128326A1 (fr) | 2018-12-20 | 2019-12-18 | Composition à base de résine époxy et de polyuréthane |
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| EP3898871A1 true EP3898871A1 (fr) | 2021-10-27 |
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| EP19845613.9A Withdrawn EP3898871A1 (fr) | 2018-12-20 | 2019-12-18 | Composition à base de résine époxy et de polyuréthane |
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| Country | Link |
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| US (1) | US20220073799A1 (fr) |
| EP (1) | EP3898871A1 (fr) |
| CN (1) | CN113227301B (fr) |
| FR (1) | FR3090672B1 (fr) |
| WO (1) | WO2020128326A1 (fr) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111978903B (zh) * | 2020-09-09 | 2021-06-15 | 湖南固特邦土木科技发展有限公司 | 一种用于桥梁支座更换的环氧结构胶粘剂及其制备方法 |
| KR102594971B1 (ko) * | 2021-10-29 | 2023-10-30 | 한국화학연구원 | 우레탄계 강인화제를 포함하는 에폭시 수지 조성물 및 이의 제조방법 |
| CN114750479B (zh) * | 2022-04-28 | 2023-01-20 | 昆山吉山会津塑料工业股份有限公司 | 一种高耐热抗变形电动工具冷却风扇及其生产工艺 |
| WO2024214490A1 (fr) * | 2023-04-10 | 2024-10-17 | 三井化学株式会社 | Composition de résine, produit de résine durci, procédé de production de produit de résine durci, dispositif électronique, procédé de production de dispositif électronique et feuille de résine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051195A (en) | 1975-12-15 | 1977-09-27 | Celanese Polymer Specialties Company | Polyepoxide-polyacrylate ester compositions |
| US5232996A (en) * | 1992-05-07 | 1993-08-03 | Lord Corporation | Acrylate-terminated polyurethane/epoxy adhesives |
| US5426157A (en) * | 1994-03-16 | 1995-06-20 | Air Products And Chemicals, Inc. | Flexibilized polyepoxide resins incorporating poly-N-methylated secondary amines |
| WO2006033439A1 (fr) * | 2004-09-21 | 2006-03-30 | Showa Denko K.K. | Composition de resine urethane durcissable a chaud |
| DE102005012794A1 (de) | 2005-03-19 | 2006-09-21 | Bayer Materialscience Ag | Poly(etherester)polyole und Verfahren zu ihrer Herstellung |
| JP5451883B2 (ja) | 2010-06-30 | 2014-03-26 | Necソフト株式会社 | 頭部検出方法、頭部検出装置、属性判定方法、属性判定装置、プログラム、記録媒体および属性判定システム |
| CN102408860B (zh) * | 2011-10-19 | 2013-03-06 | 湖南固特邦土木技术发展有限公司 | 一种柔性环氧胶粘剂及其应用 |
| EP2617748A1 (fr) | 2012-01-23 | 2013-07-24 | Basf Se | Polyesters polyols et leur procédé de fabrication |
| WO2015164031A1 (fr) * | 2014-04-22 | 2015-10-29 | Dow Global Technologies Llc | Adhésif époxyde au polyuréthane-acrylate |
| WO2016060923A1 (fr) * | 2014-10-13 | 2016-04-21 | Dow Global Technologies Llc | Composition époxy contenant un agent de renforcement à base d'acrylate |
-
2018
- 2018-12-20 FR FR1873461A patent/FR3090672B1/fr active Active
-
2019
- 2019-12-18 WO PCT/FR2019/053150 patent/WO2020128326A1/fr not_active Ceased
- 2019-12-18 CN CN201980084438.3A patent/CN113227301B/zh not_active Expired - Fee Related
- 2019-12-18 EP EP19845613.9A patent/EP3898871A1/fr not_active Withdrawn
- 2019-12-18 US US17/415,770 patent/US20220073799A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| FR3090672B1 (fr) | 2021-10-15 |
| FR3090672A1 (fr) | 2020-06-26 |
| WO2020128326A1 (fr) | 2020-06-25 |
| CN113227301A (zh) | 2021-08-06 |
| CN113227301B (zh) | 2023-05-12 |
| US20220073799A1 (en) | 2022-03-10 |
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