Patent ID: 8889807

Claim:
A controlled radical polymerization initiator comprising at least one radically transferable group, wherein said controlled radical polymerization initiator comprises at least one of, (a) a spirooxazine compound represented by the following Formula (I), wherein n is from 1 to 4, p is from 1 to 2, q is from 1 to 4, and R 1 independently for each n, R 2 independently for each p, R 3 independently for each q, R 4 , R 5 , and R 6 are each independently selected from hydrogen, hydrocarbyl and substituted hydrocarbyl each optionally interrupted with at least one of —O—, —S—,—C(O)—, —C(O)O—, —OC(O)O—, —S(O)—, —SO 2 —, —N(R 11 )—, and —Si(R 11 )(R 12 )— wherein R 11 and R 12 are each independently selected from hydrogen, hydrocarbyl and substituted hydrocarbyl, and combinations of two or more thereof, provided that for the spirooxazine represented by Formula (I) at least one of R 1 independently for each n, R 2 independently for each p, R 3 independently for each q, R 4 , R 5 , and R 6 , independently comprise said radically transferable group, and (b) an indenonaphthopyran represented by the following Formula (II), wherein x is from 1 to 4, y is from 1 to 4, R 7 independently for each x, R 8 independently for each y, R 9 , and R 10 are each independently selected from hydrogen, hydrocarbyl and substituted hydrocarbyl each optionally interrupted with at least one of —O—, —S—, —C(O)—, —C(O)O—, —OC(O)O—, —S(O)—, —SO 2 —, —N(R 11 )—, and —Si(R 11 )(R 12 )— wherein R 11 and R 12 are each independently selected from hydrogen, hydrocarbyl and substituted hydrocarbyl, and combinations of two or more thereof, and B and B′ are each independently selected from unsubstituted aryl, substituted aryl, unsubstituted heteroaryl, substituted heteroaryl, and polyalkoxy, or B and B′ taken together form a ring structure selected from unsubstituted fluoren-9-ylidene, substituted fluoren-9-ylidene, saturated spiro-monocyclic hydrocarbon ring, saturated spiro-bicyclic hydrocarbon ring, and spiro-tricyclic hydrocarbon ring, provided that for the indenonaphthopyran represented by Formula (II) at least one of R 7 independently for each x, R 8 independently for each y, R 9 , R 10 , B, and B′, independently comprise said radically transferable group.