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US5763134A Composition comprising photochemical acid progenitor and specific squarylium dye 失效
组合物包含光化学酸性祖细胞和特定方酸染料

Composition comprising photochemical acid progenitor and specific
squarylium dye
摘要:
Photochemical acid progenitors in combination with dihydroperimidine squarylium dyes have been found to be particularly effective at generating acid upon irradiation with near-infrared radiation. It has been found that dihydroperimidine squarylium dyes that are particularly useful in this invention have an oxidation potential greater than about 0.5 V relative to SCE as measured in dichloromethane.
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