Patent · US Expired

N-methylol 4-amino-1,2,4-triazine-5-ones

US4614799A · kind A · utility

2Cited by

2References

5Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventor

Stanley Tocker · Wilmington, US

Key dates

Filing date	Dec 13, 1984
Grant date	Sep 30, 1986
Priority date	—
Expiry date	Dec 13, 2004

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01N43/707
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

N-methylol derivatives of herbicidal 4-amino-1,2,4-triazine-5-ones can be prepared by reacting formaldehyde with a 4-amino-1,2,4-triazine-5-one slurried in water under basic conditions. The N-methylol derivatives can be surface-modified by slurrying particles of the derivatives in water and treating with a strong acid or strong base, producing a product that releases the original herbicidal 4-amino-1,2,4-triazine-5-one in a controlled manner.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.