Patent · US Expired

3,5-Diamino-4-tert.-alkylbenzonitriles

US4222955A · kind A · utility

8Cited by
5References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 31, 1979
Grant dateSep 16, 1980
Priority date—
Expiry dateAug 31, 1999

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G18/10
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

The invention relates to substituted aromatic diamines and polyurethanes cured thereby. The diamines are individually selected from 3,5-diamino-4-tert-alkylbenzoates, 3,5-diamino-4-tert-alkylbenzonitriles and alkylene bis(3-amino-4-tert-alkylbenzoate).

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