Inventor

SUN SHUCHANG

CN3 patents

⚠️ This page may combine multiple inventors who share the name “SUN SHUCHANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NINGBO WANHUA POLYURETHANES CO

1 patent

US7893301B2Feb 22, 2011

Method of preparing polymethylene-polyphenyl-polyamine

NINGBO WANHUA POLYURETHANES CO2 citations57

WANHUA CHEMICAL GROUP CO LTD

1 patent

US11814339B2Nov 14, 2023

Method for preparing isocyanate in gaseous phase

WANHUA CHEMICAL GROUP CO LTD0 citations46

ZHANG HONGKE

1 patent

US9802848B2Oct 31, 2017

Method for treating waste saline water produced in production process of diphenylmethane diisocyanate (MDI)

ZHANG HONGKE0 citations34