Global Patent Index - EP 1023496 A1

EP 1023496 A1 2000-08-02 - ADDITIVES FOR IMPROVING RESISTANCE OF PAPER IN HUMID AND DRY CONDITIONS

Title (en)

ADDITIVES FOR IMPROVING RESISTANCE OF PAPER IN HUMID AND DRY CONDITIONS

Title (de)

HILFSMITTEL ZUR VERBESSERUNG DER NASS-UND TROCKENFESTIGKEIT VON PAPIER

Title (fr)

ADDITIFS POUR AMELIORER LA RESISTANCE A L'ETAT HUMIDE ET A SEC DU PAPIER

Publication

EP 1023496 A1 (FR)

Application

EP 98949066 A

Priority

  • FR 9802210 W
  • FR 9713061 A
  • FR 9808827 A

Abstract (en)

[origin: WO9920837A1] The invention concerns a method for treating paper which consists in applying on the paper either a cationic resin, PAE or a latex containing acid functions, applied simultaneously but separately, or a previously prepared stable mixture containing PAE and a latex stabilised with a non-ionic surfactant.

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

D21H 21/20; C08L 33/06; C08L 79/02; D21H 17/72

IPC 8 full level (invention and additional information)

C08L 33/02 (2006.01); C08L 79/02 (2006.01); C08L 79/04 (2006.01); D21H 19/20 (2006.01); D21H 19/22 (2006.01); D21H 19/24 (2006.01); D21H 21/18 (2006.01); D21H 21/20 (2006.01); D21H 17/37 (2006.01); D21H 17/43 (2006.01); D21H 17/56 (2006.01)

CPC (invention and additional information)

D21H 21/20 (2013.01); C08L 79/04 (2013.01); D21H 21/18 (2013.01); D21H 17/37 (2013.01); D21H 17/43 (2013.01); D21H 17/56 (2013.01)

Combination set (CPC)

C08L 79/04 + C08L 33/00

Citation (search report)

See references of WO 9920837A1

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

WO 9920837 A1 19990429; AU 9545998 A 19990510; BR 9815210 A 20001017; CA 2307286 A1 19990429; CN 1281520 A 20010124; EP 1023496 A1 20000802; JP 2001521069 A 20011106; NO 20002002 A 20000616; NO 20002002 D0 20000417

INPADOC legal status


2002-11-06 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20020502

2000-08-23 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: ATOFINA

2000-08-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000418

2000-08-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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