Patent · US Expired

Pyrrolo[1,2-b]azines

US4983324A · kind A · utility

7Cited by

0References

13Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Heinz Durr · Riegelsberg, DE
Volker Bach · Neustadt, DE

Key dates

Filing date	Nov 25, 1988
Grant date	Jan 8, 1991
Priority date	—
Expiry date	Nov 25, 2008

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/3612
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Non-linear optical materials contain the structural elements of the general formula I and/or I' ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.3', R.sup.4, R.sup.5, R.sup.6, R.sup.7 and Z have the meaning indicated in patent claim 1.

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