Global Patent Index - EP 1042409 A1

EP 1042409 A1 2000-10-11 - COMPOSITION AND METHOD OF MAKING IMPROVED HIGH BULKING CLAYS

Title (en)

COMPOSITION AND METHOD OF MAKING IMPROVED HIGH BULKING CLAYS

Title (de)

HERSTELLUNG VON TONMINERALISCHEN FÜLLSTOFFEN UND IHRE ZUSAMMENSETZUNG

Title (fr)

COMPOSITION ET PROCEDE DE FABRICATION D'ARGILES FORTEMENT GONFLANTES

Publication

EP 1042409 A1 (EN)

Application

EP 99956717 A

Priority

  • US 9925208 W
  • US 18487598 A

Abstract (en)

[origin: WO0026306A1] A delaminated and deslimed pigment is bulked with small and controlled quantities of a cationic polyelectrolyte such as polydimethyldiallyl ammonium chloride to produce a highly bulked pigment ideal for improving printability, opacity and sheet gloss in coated paper applications, particularly for LWC rotogravure papers.

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

C09C 1/42; D21H 17/68; D21H 19/40

IPC 8 full level (invention and additional information)

C09C 1/42 (2006.01); C09C 3/10 (2006.01); D21H 17/68 (2006.01); D21H 19/40 (2006.01); D21H 21/52 (2006.01)

CPC (invention and additional information)

D21H 19/40 (2013.01); D21H 17/68 (2013.01); D21H 21/52 (2013.01)

Citation (search report)

See references of WO 0026306A1

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 0026306 A1 20000511; AU 1326100 A 20000522; BR 9906718 A 20001017; CA 2316998 A1 20000511; CN 1289356 A 20010328; EP 1042409 A1 20001011; ID 26566 A 20010118; JP 2002528624 A 20020903

INPADOC legal status


2003-11-05 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030501

2001-10-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010903

2000-10-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000802

2000-10-11 [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