Patent ID: 9256126
Filing Date: 2016-02-09
CPC Classification: C07C,G03F,H01L

Claim Text:
1. A methanofullerene comprising the general formula: wherein x is 10-48, y is 1-6, n is 0-1, alkyl is a branched or unbranched, substituted or unsubstituted divalent alkyl chain of 1-16 carbon atoms with or without one or more heteroatoms substituted into the chain, aryl is a substituted or unsubstituted divalent phenyl group, heteroaromatic group, or fused aromatic or fused heteroaromatic group, and at least one R is a photoacid labile group comprising —C═O—OR′, wherein OR′ is t-alkoxy, cycloketal, acetal, oxy-vinyl or t-butoxy.