Patent · US Expired

Electrically conductive cyclic polyimides

US4368319A · kind A · utility

6Cited by

5References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Jurgen Hocker · Bensberg, DE
Rudolf Merten · Leverkusen, DE
Hans G. Fitzky · Odenthal, DE

Key dates

Filing date	Jan 2, 1981
Grant date	Jan 11, 1983
Priority date	—
Expiry date	Jan 2, 2001

Classification

Technology area (CPC H)Electricity
CPC primaryH10K85/621
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Film-forming polymers corresponding to the following Formula I: ##STR1## wherein R represents a divalent aliphatic group containing an electric donor; PA0 R.sup.1 represents hydrogen, halogen, --SO.sub.3 H, --CN, --COOR.sup.2, --N(R.sup.3).sub.2, --OR.sup.4 or --NO.sub.2 ; PA0 R.sup.2, R.sup.3 and R.sup.4 represent hydrogen or C.sub.1 -C.sub.6 alkyl; and PA0 n represents an integer of from 2 to 1000, and m is 1 or 2.

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