Patent ID: 7432386

Claim:
A 4,4-diarylbutadiene-substituted methyltrialkylsilane having the structural formula (1): in which the radicals R 1 , which may be identical or different, are each a hydroxyl group, a saturated or unsaturated, linear or branched C 1 -C 10 alkyl radical, a linear or branched C 1 -C 10 alkoxy radical, with the proviso that two adjacent groups R 1 may together form a C 1 -C 3 alkylenedioxy ring; the radicals R 2 , R 3 and R 4 , which may be identical or different, are each a saturated or unsaturated, linear or branched C 1 -C 10 alkyl radical optionally containing one or more halogen atoms, or a phenyl radical; p is 0 or 1; A is a hydrogen atom, a saturated or unsaturated, linear or branched C 1 -C 8 alkyl radical, a phenyl radical, or the group Si(CH 3 ) 3 , with the proviso that, if A is Si(CH 3 ) 3 , then p=0 and R 2 , R 3 and R 4 are methyl radicals; n is an integer ranging from 0 to 2; W is a saturated or unsaturated, linear or branched C 1 -C 8 alkylene radical optionally substituted by a hydroxyl group; Z is a hydrogen atom, —(C═O)OR 5 , —(C═O)R 6 , —(C═O)NR 7 R 8 , —SO 2 R 9 , —CN or —(C═O)XCHA(W) p SiR 2 R 3 R 4 ; the radical R 5 is a hydrogen atom, or a saturated or unsaturated, linear or branched C 1 -C 20 alkyl radical; the radical R 6 is a linear or branched, optionally cyclic, C 1 -C 20 alkyl radical or a C 6 -C 12 aryl radical; the radicals R 7 and R 8 , which may be identical or different, are each a hydrogen atom or a linear or branched C 1 -C 20 alkyl radicals; X is —O— or —NR 7 —; and the radical R 9 is a linear or branched C 1 -C 20 alkyl radical or a C 6 -C 12 aryl radical, or mixture thereof.