Plastic material surface treatment with a polymerisable and/or crosslinkable organic composition having reactive functions

The process as claimed in any one of the preceding claims, characterized in [lacuna] the initiator C is a cationic initiator, the anionic entity of which is a borate of formula (X):

• [BX″aR12b]− (X)
• in which:
• a and b are integers ranging from 0 to 3 for a and from 1 to 4 for b, with a+b=4,
• the X” symbols represent:
• a halogen atom (chlorine or fluorine) with a=0 to 3,
• an OH functional group with a=0 to 2,
• the R12 symbols, which are identical or different, represent:
• a phenyl radical substituted by at least one electron-withdrawing group, such as, for example, OCF3, CF3, NO2 or CN, and/or by at least 2 halogen atoms (very particularly fluorine), this being when the cationic entity is an onium of an element from Groups 15 to 17,
• a phenyl radical substituted by at least one electron-withdrawing element or group, in particular a halogen atom (very particularly fluorine), CF3, OCF3, NO2 or CN, this being when the cationic entity is an organometallic complex of an element from Groups 4 to 10,
• an aryl radical comprising at least two aromatic nuclei, such as, for example, biphenyl or naphthyl, which is optionally substituted by at least one electron-withdrawing element or group, in particular a halogen atom (very particularly fluorine), OCF3, CF3, NO2 or CN, whatever the cationic entity.

The process as claimed in either one of the preceding claims, characterized in that the silicone matrix A additionally comprises at least one of the following (co)monomers and/or (co)oligomers and/or (co)polymers composed of at least one of the following organic species:

• A2) monomers with oxetane and alkoxy functional groups, oxetane and hydroxyl functional groups, or oxetane and alkoxysilyl functional groups of formula:
• 32
• in which:
• R1 is (i) a hydrogen atom;
• (ii) a linear or branched alkyl radical comprising from 1 to 30 carbon atoms;
• (iii) an aryl radical comprising from 6 to 30 carbon atoms, which radical is optionally substituted by at least one fluorine atom, one carboxyl radical, one hydroxyl radical, one ester radical or one radical with a ketone functional group;
• (iv) a cycloalkyl radical comprising from 5 to 6 carbon atoms, which radical is optionally substituted by at least one fluorine atom, one hydroxyl radical, one carboxyl radical, one ester radical or one radical with a ketone functional group;
• (v) an OR′ radical where R′ is a linear or branched alkyl radical comprising from 1 to 30 carbon atoms;
• or (vi) an alkenyl radical comprising from 2 to 12 carbon atoms,
• R2 is (i) a hydrogen atom;
• (ii) an alkenyl radical comprising from 2 to 12 carbon atoms (for example a vinyl radical or a propenyl radical);
• (iii) a linear or branched alkyl radical comprising from 1 to 30 carbon atoms, which radical is optionally substituted, for example by an oxirane group;
• (iv) an aryl radical comprising from 6 to 30 carbon atoms, which radical is optionally substituted, for example by at least one alkyl radical comprising from 1 to 30 carbon atoms, one benzyl radical, one CF3 radical, one halogen atom, one hydroxyl radical, one carboxyl radical or one alkoxy radical;
• (v) a linear or branched alkylated and silylated or silylated group —(CnH2n)—SiR3R4R5, where n is between 0 and 12 and R3, R4 and R5, which are identical or different, represent a hydrogen atom, a hydroxyl radical or an alkoxy radical OR′ where R′ is a linear or branched alkyl radical comprising from 1 to 30 carbon atoms;
• (vi) a linear or branched alkyl radical comprising from 1 to 30 carbon atoms;
• (vii) an aryl radical comprising from 6 to 30 carbon atoms, which radical is optionally substituted;
• (viii) an alkenyl radical comprising from 2 to 12 carbon atoms;
• (ix) an acrylate radical;
• (x) a methacrylate radical (for example —CO—CH═CH2);
• or (xi) a urethane radical —CO—NH—R1 in which R1 has the same definition as that given above;
• A3) monomers comprising carboxyl and oxetane functional groups or comprising oxetane and alkoxysilyl functional groups of formula:
• 33
• in which:
• R1 has a definition identical to that given in A2),
• R2 has a definition identical to that given in A2);
• A4) difunctional oxetane monomers of formula:
• 34
• in which:
• m, which is identical or different, is equal to 0 or 1,
• R1 has a definition identical to that given in A2),
• R6, a divalent radical, is (i) a linear or branched alkyl radical comprising from 1 to 30 carbon atoms;
• (ii) an aryl radical comprising from 6 to 30 carbon atoms, which radical is optionally substituted (by at least one alkyl radical comprising from 1 to 30 carbon atoms;
• (iii) an aryl radical comprising from 6 to 30 carbon atoms (for example a benzyl radical);
• (iv) a cycloalkyl radical comprising from 5 to 30 carbon atoms (ex.:
• cyclohexyl);
• (v) a —CH2—C6H10—CH2— radical;
• (vi) a —CH2—C6H4—CH2— radical;
• (vii) a CF3 radical;
• (viii) a halogen atom;
• (ix) a hydroxyl radical;
• (x) a carboxyl radical;
• (xi) an alkoxy radical OR′ where R′ has a definition identical to that given in A2);
• (xii) a silyl group ═SiR3R4 where n is between 0 and 12 and R3 and R4, which are identical or different, represent a hydrogen atom, a hydroxyl radical, an alkoxy radical OR′ where R′ has a definition identical to that given in A2), a linear or branched alkyl radical comprising from 1 to 30 carbon atoms, an aryl radical comprising from 6 to 30 carbon atoms which is optionally substituted, a —C6H4—C(CH3)2—C6H4— radical or an alkenyl radical comprising from 2 to 12 carbon atoms.

The process as claimed in the preceding claim, characterized in that the organic species B1 are chosen from the following:

• α1.1) cycloaliphatic epoxides and in particular:
• epoxides of the 3,4-epoxycyclohexylmethyl 3′,4′-epoxycyclohexanecarboxylate type:
• 35
• or bis(3,4-epoxycyclohexyl) adipate;
• α1.2) noncycloaliphatic epoxides and in particular:
• epoxides of the type of those resulting from the condensation of bisphenol A and of epichlorohydrin and of the type:
• di- and triglycidyl ethers of bisphenol A alkoxylated with 1,6-hexanediol, with glycerol, with neopentyl glycol and with trimethylolpropane,
• or diglycidyl ethers of bisphenol A,
• α-olefin epoxides, novolac epoxides, epoxidized soybean oil, epoxidized linseed oil and epoxidized polybutadiene,
• α2) acrylates, and in particular:
• epoxidized acrylates, preferably the oligomer of bisphenol A epoxydiacrylate (Ebecryl 600),
• polyester glycerol acrylates, preferably a mixture of oligomer of acrylate which is trifunctional obtained from glycerol and polyester (Ebecryl 810),
• multifunctional acrylates, preferably pentaerythritol triacrylate (PETA), trimethylolpropane triacrylate (TMPTA), 1,6-hexanediol diacrylate (HDODA), trimethylolpropane ethoxylate triacrylate, thiodiethylene glycol diacrylate, tetraethylene glycol diacrylate (TTEGDA), tripropylene glycol diacrylate (TRPGDA), triethylene glycol diacrylate (TREGDA) or trimethylpropane trimethacrylate (TMPTMA),
• urethane acrylates,
• polyether acrylates,
• polyester acrylates,
• unsaturated polyesters,
• acrylic acrylates,
• α3) linear or cyclic alkenyl ethers and in particular:
• vinyl ethers, in particular dodecyl vinyl ether (DDVE), cyclohexyl vinyl ether (CVE), butanediol divinyl ether (BDVE), butanediol monovinyl ether (HBVE), cyclohexanedimethanol divinyl ether (CHDVE), cyclohexanedimethanol monovinyl ether (CHMVE), triethylene glycol divinyl ether (DVE-3) and vinyl ethers of formulae:
• 36
• propenyl ethers,
• and butenyl ethers;
• α4) polyols, and preferably the compound of formula:
• 37

The process as claimed in any one of the preceding claims, characterized in that the matrix B comprises at least one monomer(s) and/or oligomer(s) and/or polymer(s) of polyorganosiloxane B2 nature, which monomer(s) and/or oligomer(s) and/or polymer(s) are composed of units of formula (IV) and are terminated by units of formula (V) or are cyclic and are composed of units of formula (IV), which formulae are represented below:

• 38
• in which:
• the R6 and R7 symbols, which are alike or different, have definitions identical to those given for A4,
• the Z′ symbols, which are alike or different, represent:
• an R6 and/or R7 group,
• a hydrogen radical,
• and/or a crosslinkable organofunctional group, preferably an epoxy functional, dioxolane functional and/or alkenyl ether functional group, connected at the silicon of the polyorganosiloxane via a divalent radical which comprises from 2 to 20 carbon atoms and which can comprise at least one heteroatom, preferably oxygen,
• with at least one of the Z symbols representing a crosslinkable organic functional group.

The process as claimed in the preceding claim, characterized in that the (Brf)s of the polyorganosiloxane B are chosen from the following radicals:

• 39
• —(O)n′—(CH2)n′—O—CH═CH2, —(O)n′—(CH2)n′—R8—O—CH═CH2 and —(O)n′—(CH2)n′—O—CH═CH—R9
• in which:
• n′ represents 0 or 1 and no an integer between 1 and 5
• R8 represents:
• a linear, branched or cyclic C1-C12 alkylene radical which is optionally substituted,
• or a C5-C12 arylene radical, preferably a phenylene radical, which is optionally substituted, preferably by one to three C1-C6 alkyl groups,
• and R9 represents a linear or branched C1-C6 alkyl radical.