Patent ID: 11926758
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 1:
2. The coated substrate of claim 1, wherein in each R1 and each R2, exactly one of X1, X2, X3, X4, and X5 is bromo, fluoro, chloro, iodo, hydroxy, methyl, trifluoromethyl, dimethylamino, tert-butyl, carboxyl, triphenylmethyl, tris(4-fluorophenyl)methyl, tris(4-methylphenyl)methyl, (4-hydroxyphenyl)diphenylmethyl, or difluoromethoxy, and the remaining four of X1, X2, X3, X4, and X5 are hydrogen.