Patent ID: 9103966
Filing Date: 2015-08-11
Classification: G02B

Abstract:
1. A plastic optical fiber core comprising a cyclic block copolymer characterized by a: A. Weight ratio of hydrogenated conjugated diene polymer block to hydrogenated vinyl aromatic polymer block of 35:65 to 10:90; B. Number average molecular weight (Mn) of from 40,000 to 150,000 g/mol; C. Hydrogenation level such that each hydrogenated vinyl aromatic polymer block and each hydrogenated conjugated diene polymer block has a hydrogenation level of at least 95 percent; D. Tensile modulus greater than 1380 kilopascals (kPa) (200,000 pounds per square inch (psi)); and E. Room temperature (23° C.) un-notched Izod impact toughness of at least 110 Joules per meter (J/m) (2 foot-pounds per inch (ft-lb/in.)).