Substitude phenols as stabilizers

Details Substitude phenols as stabilizers Substitude phenols as stabilizers

C - Chemistry, Metallurgy

07

C

400/7090, 400/71

C07C 323/16 (2006.01) C08K 5/375 (2006.01) C09K 15/14 (2006.01) C10M 135/22 (2006.01) C10M 135/24 (2006.01) C10M 135/26 (2006.01) C10M 135/28 (2006.01)

Patent

CA 1339883

Novel compositions are described which comprise an elastomer or a lubricant and at least one compound of the formulae I or II (see formula II) in which the radicals R1 are identical or different and independently of one another are C1-C20-alkyl which is unsubstituted or substituted by 1 or 2 hydroxyl groups or interrupted by -O-, or are C1-C4-alkylene -COOR'2, C1-C4alkylene- CO-NR"2R4, C5-C12-cycloalkyl, R2, R'2 and R"2 independently of one another are C1-C20-alkyl, allyl, methallyl, propargyl, C5-C12-cycloalkyl, phenyl or benzyl, R3 is hydrogen, C1-C20-alkyl, C2-C18-alkenyl or halogen, R4 is hydrogen, C1-C20-alkyl or C2-C18-alkenyl, Z1 is -S- or -C(Z3)(Z4)- and Z is hydrogen, C1-C20-alkyl or -CH2-S-R1, Z3 and Z4 independently of one another being hydrogen or methyl, with the proviso that the phenols of the formula II are free of the -CH2-S-R1 functional group in the m-position relative to the OH group. The compounds of the formula II and some of the compounds of the formula I are novel, and they are used especially as antioxidants. about 30 carbon atoms. In one preferred embodiment, the amine salts are derived from hydroxyhydrocarbyl amines. The lubricating and functional fluid compositions may contain, in addition to the borated amine salt, at least one nitrogen-containing composition prepared by the reaction of a hydrocarbon-substituted succinic acid-producing compound with at least about one-half equivalent, per equivalent of acid-producing compound, of an amine containing at least one hydrogen attached to a nitrogen atom. The lubricating compositions of the present invention are particularly useful as lubricating oils, functional fluids and greases.

555066

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