Global Patent Index - EP 0812956 A4

EP 0812956 A4 2000-05-17 - HIGH PERFORMANCE PAPER AND PROCESS FOR PRODUCING THE SAME

Title (en)

HIGH PERFORMANCE PAPER AND PROCESS FOR PRODUCING THE SAME

Title (de)

HOCHLEISTUNGSFÄHIGES PAPIER UND VERFAHREN ZUR HERSTELLUNG DESSELBEN

Title (fr)

PAPIER HAUTE QUALITE ET PROCEDE DE FABRICATION CORRESPONDANT

Publication

EP 0812956 A4 (EN)

Application

EP 96943319 A

Priority

  • JP 9603838 W
  • JP 34402795 A
  • JP 19488296 A
  • JP 21922496 A
  • JP 26551996 A

Abstract (en)

[origin: WO9724489A1] A first invention relates to a method of making paper, in which paper is passed through a nip portion formed by metallic rolls, under a line pressure of 200 to 2500 kg/cm. A second invention relates to paper which is provided on both surfaces thereof with moistureproofing resin layers before or after the paper is passed through a nip portion formed by metallic rolls, under a line pressure of 200 to 2500 kg/cm. A third invention relates to paper which is passed through a nip portion formed by metallic rolls, under a line pressure of 200 to 2500 kg/cm before or after the paper is impregnated with a cellulose fiber cross-linking agent. A fourth invention relates to a method of making a laminate of two or more paper sheets, in which two or more sheets of paper are passed through a nip portion formed by metallic rolls, under a line pressure of 500 to 2500 kg/cm.

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

D21G 1/00; D21H 17/07; D21H 17/47; D21H 17/68

IPC 8 full level (invention and additional information)

D21G 1/00 (2006.01); D21H 21/16 (2006.01); D21H 21/20 (2006.01); D21H 25/00 (2006.01); D21H 17/06 (2006.01); D21H 17/07 (2006.01); D21H 17/37 (2006.01); D21H 17/47 (2006.01); D21H 19/14 (2006.01); D21H 19/18 (2006.01); D21H 19/40 (2006.01)

CPC (invention and additional information)

D21H 25/005 (2013.01); D21G 1/00 (2013.01); D21H 21/16 (2013.01); D21H 21/20 (2013.01); D21H 17/06 (2013.01); D21H 17/07 (2013.01); D21H 17/375 (2013.01); D21H 17/47 (2013.01); D21H 19/14 (2013.01); D21H 19/18 (2013.01); D21H 19/40 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

WO 9724489 A1 19970710; EP 0812956 A1 19971217; EP 0812956 A4 20000517

INPADOC legal status


2002-11-13 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020514

2002-02-20 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020102

2000-05-17 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000406

2000-05-17 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB

1997-12-17 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19970828

1997-12-17 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB