Patent ID: 7257299

Claim:
An optical fiber ribbon comprising: a plurality of optical fibers that each comprise a coating; an ink layer that at least partially encapsulates one or more of the optical fibers; and a matrix substantially encapsulating the plurality of optical fibers and the ink layer; wherein the coating, the ink layer, and the matrix are each characterized by a glass transition temperature (T g ) and a fracture toughness (K 1C ) value, and either (i) the difference between the highest and lowest of the respective T g values is less than about 15° C., (ii) the respective T g values are at least about 60° C., (iii) the respective K 1C values are at least about 0.8 MPa·m 1/2 , or (iv) any two or more of (i), (ii), and (iii) are satisfied.