COMPOSITION BASED ON (METH)ACRYLATE COMPOUNDS

1 - 22 . (canceled)

23 . A crosslinkable two-component composition comprising:

a component A comprising:

an organocopper derivative; and

at least one (meth)acrylate compound M1;

on condition that when the organocopper derivative of component A is not halogenated, then component A also comprises a halogenated carboxylic acid;

a component B comprising at least one compound having the formula (VI) below:

[R a —SO 2 − ] p , Q P+   (VI)

in which:

R a represents an aryl or heteroaryl radical, said heteroaryl and aryl being optionally substituted with at least one of the following radicals: F, OH, C(O)OMe, NHC(O)Me, methyl(Me), CF 3 , OH or SO 2 − ;

Q represents Li, Na, K, or Zn; and

p represents 1 or 2.

24 . The composition as claimed in claim 23 , characterized in that the organocopper derivative is chosen from the group formed from a copper salt of formula (VII-1) or a copper complex of formula (VII-2):

in which:

R and R″ each represent, independently of each other, an alkyl radical, a cycloalkyl radical, an aryl radical or a heteroaryl radical, said alkyl, cycloalkyl, aryl and heteroaryl radicals being optionally substituted with one or more halogen atoms, for instance with one or more fluorine atoms;

R′ represents a hydrogen atom, an alkyl radical, a cycloalkyl radical, an aryl radical or a heteroaryl radical,

or R and R′ (or R′ and R″) may also be engaged in one and the same ring comprising from 5 to 8 carbon atoms, said ring optionally comprising at least one heteroatom;

R′″ represents an alkyl radical, a cycloalkyl radical, an aryl radical or a heteroaryl radical, said alkyl, cycloalkyl, aryl, and heteroaryl radicals being optionally substituted with one or more halogen atoms.

25 . The composition as claimed in claim 23 , characterized in that the organocopper derivative is a copper salt of formula (VII-1) in which R′″ represents an alkyl radical containing from 1 to 20 carbon atoms, said alkyl being optionally substituted with one or more halogen atoms, for instance with one or more fluorine atoms.

26 . The composition as claimed in claim 23 , characterized in that the organocopper derivative is a copper salt of formula (VII-2) in which:

R represents an alkyl radical, a cycloalkyl radical, an aryl radical or a heteroaryl radical;

R′ represents a hydrogen;

R″ represents an alkyl radical optionally substituted with one or more halogen atoms, for instance one or more fluorine atoms.

27 . The composition as claimed in claim 23 , characterized in that the organocopper derivative of component A is not halogenated.

28 . The composition as claimed in claim 23 , characterized in that the total content of organocopper derivative(s) ranges from 0.05% to 5% by weight, relative to the total weight of the crosslinkable two-component composition.

29 . The composition as claimed in claim 23 , characterized in that the halogenated carboxylic acid is chosen from monohalogenated (comprising one halogen atom), dihalogenated (comprising two halogen atoms) or trihalogenated (comprising three halogen atoms) carboxylic acids.

30 . The composition as claimed in claim 23 , characterized in that the halogenated carboxylic acid is chosen from the group formed from monochloroacetic acid, monofluoroacetic acid, dichloroacetic acid, difluoroacetic acid, trichloroacetic acid, trifluoroacetic acid, and mixtures thereof.

31 . The composition as claimed in claim 23 , characterized in that, when they are present, the total content of halogenated carboxylic acid(s) ranges from 0.5% to 20% by weight, relative to the total weight of the crosslinkable two-component composition.

32 . The composition as claimed in claim 23 , characterized in that the (meth)acrylate compound M1 is a (meth)acrylate monomer, a (meth)acrylate oligomer or a (meth)acrylate polymer.

33 . The composition as claimed in claim 23 , characterized in that compound M1 has the formula (F) below:

in which:

R 1 represents H or methyl;

G represents an organic radical.

34 . The composition as claimed in claim 23 , characterized in that compound M1 has one of the formulae (I), (II), (III), (IV) or (V) below:

in which:

R 1 represents H or methyl;

R 2 represents H, methyl or ethyl;

p represents 0 or 1; and

Z represents H, O, S, an alkyl group, a benzyl group, an aryl group or an alkoxy group;

Y represents O, S, NH or CH 2 ;

is a single or double bond,

on condition that when Z represents O, then the bond is a double bond;

G′ is chosen from the group formed from alkyls, cycloalkyls, alkenyls, cycloalkenyls, alkylaryls, arylalkyls or aryls, said alkyls, cycloalkyls, alkenyls, cycloalkenyls, alkylaryls, arylalkyls and aryls being optionally substituted with an alkyl group, said G′ group being characterized in that it does not comprise any heteroatoms;

G″ is an alkyl substituted with an OH group.

35 . The composition as claimed in claim 34 , characterized in that, in formula (I), G′ is chosen from the group formed from C1 to C20 alkyls, cycloalkyls or aryls, said alkyls, cycloalkyls and aryls being optionally substituted with an alkyl group, said group G′ being characterized in that it does not comprise any heteroatoms.

36 . The composition as claimed in claim 23 , characterized in that:

the compounds of formula (I) are chosen from methyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, n-butyl (meth)acrylate, heptyl (meth)acrylate, 2-tert-butylheptyl (meth)acrylate, octyl (meth)acrylate, 3-isopropylheptyl (meth)acrylate, nonyl (meth)acrylate, decyl (meth)acrylate, undecyl (meth)acrylate, 5-methylundecyl (meth)acrylate, dodecyl (meth)acrylate, 2-methyldodecyl (meth)acrylate, tridecyl (meth)acrylate, 5-methyltridecyl (meth)acrylate, tetradecyl (meth)acrylate, pentadecyl (meth)acrylate, hexadecyl (meth)acrylate, 2-methylhexadecyl (meth)acrylate, heptadecyl (meth)acrylate, 5-isopropylheptadecyl (meth)acrylate, 4-tert-butyloctadecyl (meth)acrylate, 5-ethyloctadecyl (meth)acrylate, 3-isopropyloctadecyl (meth)acrylate, octadecyl (meth)acrylate, nonadecyl (meth)acrylate, eicosyl (meth)acrylate, bornyl (meth)acrylate, 2,3,4,5-tetra-t-butylcyclohexyl (meth)acrylate; benzyl (meth)acrylate, phenyl (meth)acrylate, 2-(2-ethoxyethoxy)ethyl (meth)acrylate, 2-phenoxyethyl (meth)acrylate, isobornyl (meth)acrylate, and mixtures thereof;

the compounds of formula (II) are chosen from the following monomers:

the compounds of formula (III) are chosen from the following monomers:

the compounds of formula (V) are chosen from hydroxyethyl (meth)acrylate and hydroxypropyl (meth)acrylate.

37 . The composition as claimed in claim 23 , characterized in that the total content of (meth)acrylate compound(s) M1 in component A is greater than or equal to 5% by weight, relative to the total weight of said component A.

38 . The composition as claimed in claim 23 , characterized in that the compound of formula (VI) is chosen from the following compounds:

39 . The composition as claimed in claim 23 , characterized in that it comprises at least one additive chosen from the group formed from catalysts, fillers, antioxidants, polymerization inhibitors, light stabilizers/UV absorbers, metal deactivators, antistatic agents, antifogging agents, foaming agents, biocides, plasticizers, lubricants, emulsifiers, colorants, pigments, rheological agents, impact modifiers, adhesion promoters, accelerants, optical brighteners, flame retardants, anti-seepage agents, nucleating agents, solvents, and mixtures thereof.

40 . The composition as claimed in claim 39 , characterized in that the filler is an electrically or thermally conductive filler.

41 . A ready-to-use kit, comprising component A and component B as defined in claim 23 , wherein component A and component B are packaged in two separate compartments.

42 . An adhesive, mastic or coating comprising the crosslinkable two-component composition as defined in claim 23 .

43 . A process for assembling two substrates by adhesive bonding, which involves:

mixing components A and B as defined in claim 23 to form the composition as defined in claim 23 ;

coating at least one of the two substrates to be assembled with said composition;

effectively placing the two substrates in contact; and then

crosslinking the composition.

44 . A method for determining the crosslinking of a crosslinkable two-component composition as defined in claim 23 , comprising a step of mixing components A and B as defined in claim 23 , characterized in that during the initial mixing of components A and B, the composition is colored, and during the crosslinking step, the composition changes color.