Patent ID: 7327925

Claim:
A waveguide device comprising a photosensitive composition wherein the photosensitive composition comprises a) at least one fluorinated non-urethane containing multifunctional acrylate prepared from at least one multifunctional alcohol, said alcohol being synthesized from a core molecule having at least two equivalents of hydroxyl-reacting functional groups and a fluorinated molecule having at least two hydroxyl groups; and b) at least one initiator, wherein the non-urethane containing multifunctional acrylate is prepared using the following reaction scheme: wherein A is a fluorinated monomer or polymer having two hydroxyl groups, wherein Rf is a monomeric or polymeric perfluorinated alkylenediyl, alkylene oxide, arylenediyl, arylene oxide, or mixtures thereof, and R 1 and R 2 are monomeric or polymeric divalent moieties such as alkylenediyl, alkylene oxide, alkylene sulfide, arylenediyl, arylene oxide, arylene sulfide, siloxane or mixtures thereof; B is a multifunctional molecule wherein I is a multivalent radical, W stands for one equivalent of hydroxy-reacting functional group and n 1 is at least 2; C is the multifunctional alcohol product mixture from A and B, wherein L is an ether link and n 2 is at least 2; D is an acryloylation agent, wherein X is selected from OH, Cl or alkoxy; and E is the acrylate product mixture from C and D, wherein R 3 is H or CH 3 and n 3 is at least 2, wherein there are at least 2.5 equivalents of OH groups from A for every equivalent of hydroxyl-reacting group, W, from B.