Patent · US Expired

Tetrahydropyrimidine-isocyanate addition products

US4455426A · kind A · utility

2Cited by

5References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Rolf-Volker Meyer · Krefeld, DE
Hans-Joachim Kreuder · Krefeld, DE
Eckhard de Cleur

Key dates

Filing date	Sep 30, 1982
Grant date	Jun 19, 1984
Priority date	—
Expiry date	Sep 30, 2002

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G2150/20
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

New amidine/isocyanate adducts are particularly useful as catalysts for hardening epoxy resins, in particular pulverulent coating compositions based on epoxy resins. New bicyclic amidines are excellent starting materials for manufacturing these amidine/isocyanate adducts.

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