Patent ID: 6933412

Claim:
Aromatic vinyl sulfide compounds of formula A(—S—CH═CH 2 ) z , wherein z is an integer in the range of 1-4 and A is selected from the group consisting of halogenated, halogenated-deuterated and deuterated biphenyl and naphthalene compounds; halogenated, halogenated-deuterated and deuterated biphenyl ethers and thioethers; and halogenated, halogenated-deuterated and deuterated unsaturated 5- and 6-member heterocyclic ring systems containing carbon and at least one heteroatom selected from the group consisting of nitrogen, oxygen and sulfur; and wherein A(—S—CH═CH 2 ) z is a biphenyl vinyl sulfide compound of formula: [C 6 H a2 D b2 X c2 (—S—CH═CH 2 ) z2 ] 2 , wherein D is deuterium, X=F, Cl, Br and mixtures thereof, a2+b2+c2+z2=10, a2=2, b2=0-8, c2=0-8, and z2=2-4.