Global Patent Index - EP 0947878 A3

EP 0947878 A3 2000-03-01 - Imaging element comprising an improved electrically conductive layer containing acicular metalcontaining particles

Title (en)

Imaging element comprising an improved electrically conductive layer containing acicular metalcontaining particles

Title (de)

Bildaufzeichnungselement, das eine verbesserte elektrisch leitfähige Schicht mit nadelförmigen Teilchen enthält

Title (fr)

Elément formateur d'image ayant une couche électroconductrice améliorée comprenant des particules aciculaires contenant un métal

Publication

EP 0947878 A3 (EN)

Application

EP 99200876 A

Priority

US 5323398 A

Abstract (en)

[origin: EP0947878A2] The present invention is an imaging element which includes a support, an image-forming layer superposed on the support and an electrically-conductive layer superposed on the support. The electrically-conductive layer contains a film-forming binder and acicular, crystalline single-phase, electrically-conductive metal-containing particles. The acicular, crystalline single-phase, conductive metal-containing particles have a diameter less than or equal to 0.02 mu m and an aspect greater than or equal to 3:1. The electrically-conductive layer is formed by dispersing the acicular particles using polymeric milling media having a size less than 350 mu m to form a colloidal dispersion, combining the colloidal dispersion with the film forming binder to form a mixture, coating the mixture onto the support and drying the mixture to form the electrically-conductive layer.

IPC 1-7 (main, further and additional classification)

G03C 1/85; B41M 5/40; G03G 5/10

IPC 8 full level (invention and additional information)

B41M 5/28 (2006.01); B41M 5/30 (2006.01); B41M 5/40 (2006.01); B41M 5/42 (2006.01); G03C 1/005 (2006.01); G03C 1/76 (2006.01); G03C 1/85 (2006.01); G03G 5/14 (2006.01)

CPC (invention and additional information)

B41M 5/426 (2013.01); G03C 1/005 (2013.01); G03C 1/853 (2013.01); B41M 5/42 (2013.01)

Combination set (CPC)

G03C 1/005 + G03C 2200/47 + G03C 2001/0854

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0947878 A2 19991006; EP 0947878 A3 20000301; EP 0947878 B1 20020612; DE 69901751 D1 20020718; DE 69901751 T2 20030109; JP H11327085 A 19991126

INPADOC legal status


2008-01-31 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20060331

2007-01-26 [REG FR ST] NOTIFICATION OF LAPSE

- Effective date: 20061130

2006-11-29 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20060322

2006-03-22 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20060322

2006-02-22 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

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- Effective date: 20060222

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- Payment date: 20050331

- Year of fee payment: 7

2005-03-02 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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2005-02-07 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

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- Year of fee payment: 7

2003-06-04 [26N] NO OPPOSITION FILED

- Effective date: 20030313

2002-10-25 [ET] FR: TRANSLATION FILED

2002-07-18 [REF] CORRESPONDS TO:

- Document: DE 69901751 20020718

2002-06-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB

2002-06-12 [REG GB FG4D] EUROPEAN PATENT GRANTED

2001-07-11 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010601

2000-11-08 [AKX] PAYMENT OF DESIGNATION FEES

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2000-09-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000729

2000-03-01 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-03-01 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI

1999-10-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB

1999-10-06 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI