Patent ID: 11918671
Assignee: HENKEL AG & CO. KGAA
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 18:
19. The process of claim 16, wherein the agent (B1) comprises: (i) a pH of from about 2 to about 5, measured at 22° C.; (ii) a reactive carbonyl compound selected from 4-hydroxy-2-methoxybenzaldehyde, 2-chloro-3,4-dihydroxybenzaldehyde, 2-b rom o-3,4-dihydroxybenzaldehyde, 3,4-dihydroxy-5-methoxybenzaldehyde, 2,3-di hydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol e-4-carboxaldehyde, 2,4-dimethoxybenzaldehyde, 4-formyl-1-methylquinolinium-p-toluenesulfonate, and combinations thereof; or (iii) both (i) and (ii).