Patent ID: 9711731
Date: 2017-07-18
CPC Classifications: C07C,C07D,C09K,H01L

Claim:
1. A compound having Formula I, Formula I-a, Formula I-b, Formula I-c, Formula I-d, Formula II-a, Formula II-c, Formula III, Formula III-a, Formula III-b, Formula III-c, Formula III-d, or Formula III-e: wherein: R R R R a and b are the same or different and are 0 or 1, with the proviso that a+b≧1; w1 is an integer of 0-3, with the proviso that when a=1, w1 is 0-2; x is an integer of 0-3; x1 is an integer of 0-4, with the proviso that when a=1, x1 is 0-3; y is an integer of 0-4; y1 is an integer of 0-5, with the proviso that when b=1, y1 is 0-4; z is an integer of 0-5; and z1 is an integer of 0-6, with the proviso that when b=1, z1 is 0-5.