Inventor
JIN KIYOSHI
2 patents
Patents
2 patentsUS4136079AJan 23, 1979
Urea compound having carboxylate radical and method for producing the same
NHK SPRING CO LTD6 citations57
US4156675AMay 29, 1979
Urea polymer containing a sulfonate radical and method of preparing the same by a polymerization reaction of diaminosulfonate with diisocyanate
NHK SPRING CO LTD3 citations53