Inventor
GUO XIANGYUN
CN4 patents
Patents
4 patentsUS10793510B2Oct 6, 2020
Method for preparing aryl substituted p-phenylenediamine substance
SENNICS CO LTD2 citations63
US12466797B2Nov 11, 2025
Compound having anti-aging and discoloration resistance effects and preparation method therefor
SENNICS CO LTD0 citations59
US12172943B2Dec 24, 2024
Polyalkyl p-phenylenediamine anti-degradants and intermediates and preparation method thereof
SENNICS CO LTD0 citations50
US12037303B2Jul 16, 2024
Method for preparing diaryl p-phenylenediamine compounds
SENNICS CO LTD0 citations45