Global patent index - EP 1092064 A1

EP 1092064 A1 2001-04-18 - METHOD FOR MAKING PAPER AND CARDBOARD AND RETENTION AND DEWATERING AGENTS

Title (en)

METHOD FOR MAKING PAPER AND CARDBOARD AND RETENTION AND DEWATERING AGENTS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON PAPIER UND PAPPE, UND RETENTIONS- UND ENTWÄSSERUNGSHILFSMITTEL

Title (fr)

PROCEDE DE FABRICATION DE PAPIER ET CARTON ET AGENTS DE RETENTION ET D'EGOUTTAGE

Publication

EP 1092064 A1 (FR)

Application

EP 99923647 A

Priority

  • FR 9901278 W
  • FR 9807144 A

Abstract (en)

[origin: FR2779452A1] The invention concerns an improved method for making paper which consists in using as main retention agent a branched polymer prepared in invert emulsion and bentonite as secondary retention agent (dual type system). The two additions are separated by a step for shearing the fibrous suspension (or mass). The invention enables to obtain a highly improved retention and also highly improved dewatering. Moreover, it enables to reduce the bentonite content in the white water.

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

D21H 23/76; D21H 21/10; D21H 23/14

IPC 8 full level (invention and additional information)

D21H 21/10 (2006.01); D21H 23/14 (2006.01); D21H 23/76 (2006.01); D21H 17/37 (2006.01); D21H 17/68 (2006.01)

CPC (invention and additional information)

D21H 23/14 (2013.01); D21H 21/10 (2013.01); D21H 23/765 (2013.01); D21H 17/37 (2013.01); D21H 17/68 (2013.01)

Citation (search report)

See references of WO 9963159A1

Designated contracting state (EPC)

AT DE FI FR GB IT SE

EPO simple patent family

FR 2779452 A1 19991210; FR 2779452 B1 20000811; AT 254693 T 20031215; AU 4043999 A 19991220; CA 2334196 A1 19991209; CA 2334196 C 20080715; DE 69912954 D1 20031224; DE 69912954 T2 20041111; DE 69912954 T3 20100128; EP 1092064 A1 20010418; EP 1092064 B1 20031119; EP 1092064 B2 20090422; EP 1092064 B9 20091021; JP 2002517626 A 20020618; JP 4699608 B2 20110615; WO 9963159 A1 19991209

INPADOC legal status

2016-10-31 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: IT

- Ref Legal Event Code: PGFP

- Payment date: 20160616

- Year of fee payment: 18

2016-08-31 [PGFP AT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: AT

- Ref Legal Event Code: PGFP

- Payment date: 20160524

- Year of fee payment: 18

2016-08-31 [PGFP SE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: SE

- Ref Legal Event Code: PGFP

- Payment date: 20160615

- Year of fee payment: 18

2016-08-31 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Ref Legal Event Code: PGFP

- Payment date: 20160629

- Year of fee payment: 18

2016-07-29 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Ref Legal Event Code: PGFP

- Payment date: 20160616

- Year of fee payment: 18

2016-07-29 [PGFP FI] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FI

- Ref Legal Event Code: PGFP

- Payment date: 20160524

- Year of fee payment: 18

2016-07-29 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Ref Legal Event Code: PGFP

- Payment date: 20160617

- Year of fee payment: 18

2016-06-29 [REG FR PLFP] FEE PAYMENT

- Ref Country Code: FR

- Ref Legal Event Code: PLFP

- Year of fee payment: 18

2011-07-29 [PGRI IT] POSTGRANT: PATENT REINSTATED IN CONTRACTING STATE

- Ref Country Code: IT

- Ref Legal Event Code: PGRI

- Effective date: 20110616

2011-04-21 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: S.P.C.M. S.A., FR

- Ref Legal Event Code: R081

- Ref Document Number: 69912954

- Country of Ref Document: DE

- Effective date: 20110214

2011-04-01 [REG FR CA] CHANGE OF ADDRESS

- Ref Legal Event Code: CA

2011-04-01 [REG FR TP] TRANSMISSION OF PROPERTY

- Ref Legal Event Code: TP

2011-03-31 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Ref Legal Event Code: PG25

- Free Format Text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20100601

2009-10-13 [REG SE RPOT] EP PATENT HAS BEEN REPUBLISHED WITH A CORRECTED SWEDISH TRANSLATION

- Ref Legal Event Code: RPOT

2009-08-18 [REG SE RPEO] EP PATENT HAS BEEN REPUBLISHED IN MODIFIED FORM AFTER OPPOSITION AT EPO

- Ref Legal Event Code: RPEO

2009-04-22 [27A] MAINTAINED AS AMENDED

- Ref Legal Event Code: 27A

- Effective date: 20090422

2009-04-22 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT DE FI FR GB IT SE

2008-06-25 [RTI2] TITLE (CORRECTION)

- Ref Legal Event Code: RTI2

- Free Format Text: METHOD FOR MAKING PAPER AND CARDBOARD

2005-02-04 [REG FR TP] TRANSMISSION OF PROPERTY

- Ref Legal Event Code: TP

2004-10-06 [26] OPPOSITION FILED

- Ref Legal Event Code: 26

- Opponent name: CIBA SPECIALTY CHEMICALS WATER TREATMENTS LIMITED

- Effective date: 20040817

2004-03-24 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Ref Legal Event Code: GBT

- Effective date: 20040302

2004-03-09 [REG SE TRGR] TRANSLATION OF GRANTED EP PATENT

- Ref Legal Event Code: TRGR

2003-12-24 [REF] CORRESPONDS TO:

- Ref Legal Event Code: REF

- Ref Document Number: 69912954

- Country of Ref Document: DE

- Date of Ref Document: 2003-12-24

- Kind Code of Ref Document: P

2003-11-19 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT DE FI FR GB IT SE

2003-11-19 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Ref Legal Event Code: FG4D

- Free Format Text: NOT ENGLISH

2002-07-10 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020122

2001-04-18 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20010104

2001-04-18 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT DE FI FR GB IT SE