Patent ID: 7049379

Claim:
Fluorochemical oligorneric compounds of the formula: [(A) m -L] n R and (A) m [L-R] n , wherein in is 1 to 4 inclusive; n is 1 to 4 inclusive; each L independently comprises a linking group; R is a saturated or unsaturated aliphatic group; and A is a fluorochemnical oligomeric portion of the formula wherein the sum of a+b is a number such that A is oligomeric, each R 1 , independently is hydrogen, halogen, or straight chain or branched chain alkyl containing 1 to about 4 carbon atoms; each R 2 is independently hydrogen or straight chain or branched chain alkyl containing 1 to about 4 carbon atoms; Q and Q′ are each independently a covalent bond or an organic linking group, R f is a fluoroaliphatic group; X is hydrogen or the resuidue of a free radical initiator; and R h is a fluorine-free aliphatic group.