New hydroquinone derivatives as scavengers for oxidised developer

New compounds of the formula Iare described, whereinn is >1;X is O or NR4;L is a n-valent linking group defined in claim 1 andR1 is H, halogen, C1-C25-alkyl, C3-C25-alkenyl, unsubstituted or by C1-C4-alkyl substituted C5-C8-cycloalkyl;R2 and R3 independently of each other are C1-C4-alkyl, or toge...

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Hauptverfasser: SURULIAPPA GOWPER JEGANATHAN, STEPHANE BIRY
Format: Patent
Sprache:eng
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