| 摘要 |
<p>The present invention relates to novel antioxidant compounds to reduce the physical or chemical degradation or discoloration of surfaces, especially the fading of a variety of surfaces from sunlight, wherein the antioxidant compound is a derivative of butylated hydroxytoluene or sorbic acid and is selected from the group consisting of: (I), (II), (III), (IV), wherein each R?1 and R3¿ is selected from the group consising of hydroxy, methoxy, ethoxy, propoxy, butoxy, methyl, ethyl, propyl, straight or branched chained butyl groups, straight or branched chained amyl groups, and mixtures thereof; R2 is a hydroxy group; each R?4 and R7¿ is selected from the group consisting of a saturated or unsaturated C¿1?-C22, alkyl, aryl, cyclic alkyl group (which may be interrupted by an ester, amide, or ether group), hydrogen, and mixtures thereof; each R?5, R6, R8, and R9¿ is selected from the group consising of a saturated or unsaturated C¿1?-C22, alkyl, aryl, cyclic alkyl group (which may be interrupted by an ester, amide, or ether group), and mixtures thereof; n is from 1 to 50; Y is a hydrogen or a methyl group; Z is a hydrogen or a methyl group; wherein the amino group of the compounds of formulas (I) to (IV) can be protonated or quaternized with R?10¿X where R10 is a hydrogen, a C¿1?-C6 alkyl group, C1-C6 hydroxyl alkyl group, benzyl group and mixtures thereof; and X?-¿ is any compatible anion.</p> |
