Global Patent Index - EP 0914941 B1

EP 0914941 B1 2001-12-12 - A method for making positive working printing plates from heat mode sensitive imaging element

Title (en)

A method for making positive working printing plates from heat mode sensitive imaging element

Title (de)

Verfahren zur Herstellung einer positiv arbeitenden lithographischen Druckplatte unter Verwendung eines wärmeempfindlichen Materials

Title (fr)

Procédé de fabrication d'une plaque d'impression lithographique positive impliquant l'utilisation d'un produit sensible à la chaleur

Publication

EP 0914941 B1 (EN)

Application

EP 98203411 A

Priority

  • EP 98203411 A
  • EP 97203466 A

Abstract (en)

[origin: EP0914941A1] According to the present invention there is provided a method for making a lithographic printing plate comprising the steps of a) exposing imagewise to IR-radiation a heat mode imaging element having on a lithographic base with a hydrophilic surface a first layer including a polymer, soluble in an aqueous alkaline solution and a top layer on the same side of the lithographic base as the first layer which top layer is unpenetrable by an alkaline developer and contains a compound capable of converting light into heat, wherein said first layer and said top layer may be one and the same layer; and b) developing said imagewise exposed heat mode imaging element with said alkaline developer whereby the exposed areas of the first and the top layer, which may be the same, are dissolved and the unexposed areas of the first layer remain undissolved characterized in that said alkaline developer has a pH of at least 12 and a surface tension of at least 30 mN/m.

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

B41C 1/10; B41M 5/36

IPC 8 full level (invention and additional information)

B41C 1/10 (2006.01); B41M 5/36 (2006.01)

CPC (invention and additional information)

B41C 1/1016 (2013.01); B41C 2210/02 (2013.01); B41C 2210/06 (2013.01); B41C 2210/14 (2013.01); B41C 2210/20 (2013.01); B41C 2210/22 (2013.01); B41C 2210/24 (2013.01); B41C 2210/262 (2013.01)

Designated contracting state (EPC)

BE DE FR GB IT NL

EPO simple patent family

EP 0914941 A1 19990512; EP 0914941 B1 20011212

INPADOC legal status


2018-08-03 [REG FR CD] CHANGE OF NAME OR COMPANY NAME

- Owner name: AGFA NV, BE

- Effective date: 20180628

2018-03-14 [REG NL HC] CHANGE OF NAME(S) OF PROPRIETOR(S)

- Owner name: AGFA NV; BE

- Free text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF OWNER(S) NAME; FORMER OWNER NAME: AGFA GRAPHICS N.V.

- Effective date: 20180126

2018-01-31 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20170913

- Year of fee payment: 20

2018-01-05 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: AGFA NV, BE

- Free text: FORMER OWNER: AGFA GRAPHICS N.V., MORTSEL, BE

- Document: DE 69802890

2017-11-30 [PGFP NL] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: NL

- Payment date: 20170912

- Year of fee payment: 20

2017-10-31 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Payment date: 20170913

- Year of fee payment: 20

2017-10-31 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20170913

- Year of fee payment: 20

2017-09-13 [REG FR PLFP] FEE PAYMENT

- Year of fee payment: 20

2016-07-29 [REG FR PLFP] FEE PAYMENT

- Year of fee payment: 19

2008-12-12 [REG FR TP] TRANSMISSION OF PROPERTY

2007-12-31 [BERE] BE: LAPSED

- Owner name: *AGFA-GEVAERT N.V.

- Effective date: 20041031

2007-06-01 [NLS] NL: ASSIGNMENTS OF EP-PATENTS

- Owner name: AGFA GRAPHICS N.V.

- Effective date: 20070321

2007-04-04 [REG GB 732E] AMENDMENTS TO THE REGISTER IN RESPECT OF CHANGES OF NAME OR CHANGES AFFECTING RIGHTS (SECT. 32/1977)

2005-10-08 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

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

- Effective date: 20051008

2005-04-30 [BERE] BE: LAPSED

- Owner name: *AGFA-GEVAERT N.V.

- Effective date: 20041031

2004-10-31 [PG25 BE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: BE

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

- Effective date: 20041031

2003-08-28 [PGFP BE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: BE

- Payment date: 20030828

- Year of fee payment: 6

2002-12-04 [26N] NO OPPOSITION FILED

2002-05-10 [ET] FR: TRANSLATION FILED

2002-05-01 [NLT2] NL: MODIFICATIONS (OF NAMES), TAKEN FROM THE EUROPEAN PATENT PATENT BULLETIN

- Owner name: AGFA-GEVAERT

2002-02-20 [RAP2] TRANSFER OF RIGHTS OF AN EP GRANTED PATENT

- Owner name: AGFA-GEVAERT

2002-01-24 [REF] CORRESPONDS TO:

- Document: DE 69802890 20020124

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-12-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): BE DE FR GB IT NL

2001-12-12 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: VERMEERSCH, JOAN

2001-12-12 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: VAN DAMME, MARC

2001-12-12 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: ELSAESSER, ANDREAS, DR.

2001-12-12 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: CLAES, INGE

2001-03-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010205

2000-01-19 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: BE DE FR GB IT NL

2000-01-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991112

1999-05-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE FR GB IT NL

1999-05-12 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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