Manufacture of surface coatings.

摘要

The present invention provides a method for the manufacture of a corrosion-inhibiting surface coating comprising reacting a film-forming binder component of the surface coating medium with a compound having the formula IA or IB: <CHEM> wherein each R, independently, is hydrogen, C1-C12 alkyl, C3-C20 alkenyl, C1-C4 halogenoalkyl, C1-C12 alkoxy, C1-C12 alkylthio, phenylthio, benzylthio, C1-C12 alkylsulphonyl, phenyl, C7-C15 alkylphenyl, C7-C10 phenylalkyl, C5-C8 cycloalkyl, halogen, nitro, cyano, carboxyl, COO(C1-C4 alkyl), hydroxy, amino, NHR<3>, N(R<3>)2, CONH2, CONHR<3>, CON(R<3>)2, C1-C12 alkyl interrupted by an O-, N- or S-atom, NCO, C1-C4 alkylene-NCO, epoxy, C1-C4 alkyleneepoxy, CHO or COR<3>; R<1> is hydrogen, C1-C12 alkyl, phenyl optionally substituted by halogen, C1-C4 alkyl, C1-C4 alkoxy or nitro, or R<1> is pyridyl, thienyl or furyl; R<2> is hydrogen or C1-C4 alkyl; R<3> is C1-C12 alkyl, C3-C12 alkyl interrupted by one or more O-atoms, C5-C8 cycloalkyl, benzyl, phenyl optionally substituted by halogen, C1-C4 alkyl, C1-C4 alkoxy or nitro, or two groups R<3>, together with an N-atom to which they are attached, can form a pyrrolidino, piperidino or morpholino residue; R<4> is hydrogen, (CH2)m CO2H, (CH2)mCO2R<8>, <CHEM> (CH2)mNCO, (CH2)mOH, (CH2)mOSi(CH3)3, Si(CH3)3, SO2R<8>, CONHR<3>, CON(R<3>)2, C(=S)NHR<3> or C(=S)N(R<3>)2; R<5> and R<6>, independently, are hydrogen, halogen, C1-C4 alkoxy, cyano, nitro, C1-C20 alkyl, (CH2)nCO2R<8>, (CH2)nCONHR<3>, (CH2)nCON(R<3>)2, C3-C20 alkenyl, C7-C10 phenylalkyl phenyl, C5-C8 cycloalkyl or a group of formula IIA or IIB: <CHEM> wherein R, R<1> and R<2> have their previous significance; R<7> is hydrogen, C1-C20 alkyl, C1-C20 alkyl interrupted by an O-, N- or S-atom, C3-C20 alkenyl, <CHEM> (CH2)n OH, hydroxy (CH2)n NCO, (CH2)nCO2H, (CH2)nCO2R<8>, (CH2)nSi(OCH3)3 or CHO, or R<7> is a residue of formula: <CHEM> in which R<1><0> has one of meanings of R<1> but does not necessarily have the identical meaning, R<2><0> has one of the meanings of R<2> but does not necessarily have the identical meaning, R<4><0> has one of the meanings of R<4> but not necessarily the same meaning, R<5><0>has one of the meanings, but not necessarily the same meaning as R<5>, R<6><0> has one of the meanings, but not necessarily the same meaning as R<6>, and R<7><0> has one of the meanings but not necessarily the same meaning as R<7>, or R<5> and R<7> , or R<6> and R<7> can form, fused to the phenol or phenoxy ring, a carbocyclic or heterocyclic ring, the heteroatoms being O, N or S, and the ring being optionally substituted with a C1-C4alkyl, C1-C4 alkoxy or halogen substituent, provided that, when R<4> is hydrogen, R<7> is one of the defined meanings other than hydrogen or C1-C20 alkyl; R<8> is C1-C20 alkyl optionally substituted by halogen or hydroxy, or is C3-C20 alkyl which is interrupted by one or more O-atoms and is substituted by one or more of hydroxy, phenyl, C7-C15 alkylphenyl or C7- C10 phenylalkyl; m is an integer from 1 to 20; and n is O or an integer from 1 to 20.