| 主权项 |
1. A composition resulting from a mixture comprising:
(a) at least one lubricating oil; (b) at least one statistical copolymer A1 and at least one compound A2 comprising at least two boronic ester functions;
the statistical copolymer A1 resulting from the opolymerization:
(i) of at least one first monomer M1 of general formula (I) in which:
R1 is selected from a group formed by —H, —CH3 and —CH2—CH3;x is an integer ranging from 2 to 18;y is an integer equal to 0 or 1;X1 and X2, identical or different, are selected from a group formed by hydrogen, tetrahydropyranyl, methyloxymethyl, ter-butyl, benzyl, trimethylsilyl and t-butyl dimethylsilyl; or
X1 and X2 form with the oxygen atoms a bridge of the following formula in which:
the stars (.) symbolize the bonds to the oxygen atoms;R′2 and R″2, identical or different, are selected from a group formed by hydrogen and a C1-C11 alkyl; or
X1 and X2 form with the oxygen atoms a boronic ester of the following formula in which:
the stars (.) symbolize the bonds to the oxygen atoms;R′″2 is selected from a group formed by a C6-C18 aryl, a C7-C18 aralkyl and C2-C18 alkyl;(ii) with at least one second monomer M2 of general formula (II-A): in which:
R2 is selected from a group formed by —H, —CH3 and —CH2—CH3; andR31 is selected from a group formed by a C6-C18 aryl, a C6-C18 aryl substituted by an R′3, —C(O)—O—R′3; —O—R′3, —S—R′3 and —C(O)—N(H)—R′3 group with R′3 a C1-C30 alkyl group. |
