Patent ID: 7150876

Claim:
A method of stabilizing at least one photosensitive poly-unsaturated and/or aromatic compound which is either a color compound, antioxidant, a fragrance compound, a flavor compound or a combination thereof, said method comprising combining at least one compound of formulae ii, ii′ and/or i″ with said at least one photosensitive poly-unsaturated and/or aromatic compound in a ratio within a range of 10:1 to 1:2 based on total weight percent of the one or more compounds of formulae ii, ii′ and/or i″ to the total weight percent of the one or more photosensitive poly-unsaturated and/or aromatic compounds, wherein each R ii is independently linear or branched C 1 to C 8 alkyl; R ii1 is —C(O)CH 3 , —CO 2 R ii3 , —C(O)NH 2 , —C(O)N(R ii4 ) 2 , or —CN; X is O, NH or N-alkyl; R ii2 is linear or branched C 1 to C 20 alkyl; R ii3 is linear or branched C 1 to C 20 alkyl; each R ii4 is independently hydrogen or linear or branched C 1 to C 8 alkyl; R ii′1 is —C(O)CH 3 , —CO 2 R ii′3 , —C(O)NH 2 , —C(O)N(R ii′4 ) 2 , or —CN; R ii′2 is linear or branched C 1 to C 30 alkyl; R ii′3 is linear or branched C 1 to C 20 alkyl; each R ii′4 is independently hydrogen or linear or branched C 1 to C 8 alkyl; R ii′5 is linear or branched C 1 –C 8 alkyl or hydrogen; R ii′6 is linear or branched C 1 –C 8 alkyl; each R i″ is independently linear or branched C 1 to C 8 alkyl, or linear or branched C 1 to C 8 alkoxy; or one R i″ is H and the other R i″ is linear or branched C 1 to C 8 alkyl, or linear or branched C 1 to C 8 alkoxy, R i″1 is COCH 3 , CO 2 R i″5 , CONH 2 , CONH(R i″6 ) 2 , CN, COX(CH 2 )n-N—(R i″2 )(R i″4 )(R i″3 ), or the quaternized salt form of the formula COX(CH 2 )n-N—(R i″2 )(R i″4 )(R i″3 ) + Y − , n is an integer of 1 to 5, Y − is an anion, R i″2 , R i″3 and R i″4 are independently linear or branched C 1 to C 20 alkyl; and R i″5 and R i″6 are independently hydrogen or linear or branched C 1 –C 20 alkyl.