Global Patent Index - EP 0963485 A2

EP 0963485 A2 19991215 - SIZING OF PAPER

Title (en)

SIZING OF PAPER

Title (de)

PAPIERLEIMUNG

Title (fr)

COLLAGE POUR LA PRODUCTION DE PAPIER

Publication

EP 0963485 A2 19991215 (EN)

Application

EP 98903332 A 19980203

Priority

  • EP 98903332 A 19980203
  • EP 97850016 A 19970205
  • EP 97850017 A 19970205
  • SE 9800191 W 19980203
  • SE 9704930 A 19971230

Abstract (en)

[origin: WO9833982A2] The invention relates to the use of an aqueous sizing dispersion containing a cellulose-reactive sizing agent and a hydrophobically modified dispersing agent for sizing cellulosic fibres by addition of the sizing dispersion to a stock containing cellulosic fibres, and optional fillers, and dewatering the stock on a wire to obtain a web containing cellulosic fibres, wherein the stock has a cationic demand of at least 50 mu eq/litre stock filtrate. The invention further relates to an aqueous dispersion containing a cellulose-reactive sizing agent and an anionic hydrophobically modified cellulose-derivative, its preparation and use in the production of paper. The invention also relates to a substantially water-free composition containing a cellulose-reactive sizing agent and an anionic hydrophobically modified cellulose-derivative, its preparation and use in the preparation of an aqueous dispersion of cellulose-reactive sizing agent.

IPC 1-7

D21H 17/72

IPC 8 full level

D21H 17/25 (2006.01); D21H 11/00 (2006.01); D21H 11/22 (2006.01); D21H 17/16 (2006.01); D21H 17/17 (2006.01); D21H 21/16 (2006.01); D21H 17/26 (2006.01)

IPC 8 main group level

D21H (2006.01)

CPC (source: EP KR)

D21H 3/00 (2013.01 - KR); D21H 17/16 (2013.01 - EP); D21H 17/17 (2013.01 - EP); D21H 17/26 (2013.01 - EP); D21H 17/72 (2013.01 - EP); D21H 21/16 (2013.01 - EP)

Citation (search report)

See references of WO 9833982A2

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IT LI NL PT SE

DOCDB simple family (publication)

WO 9833982 A2 19980806; WO 9833982 A3 19981112; AT E225437 T1 20021015; AU 6009998 A 19980825; AU 729667 B2 20010208; BR 9807978 A 20000215; CA 2280136 A1 19980806; CA 2280136 C 20050426; CN 1099502 C 20030122; CN 1280640 A 20010117; DE 69808437 D1 20021107; DE 69808437 T2 20030710; EP 0963485 A2 19991215; EP 0963485 B1 20021002; ES 2183323 T3 20030316; ID 22848 A 19991209; JP 2000509447 A 20000725; JP 3268582 B2 20020325; KR 100339882 B1 20020610; KR 20000070620 A 20001125; NO 993740 D0 19990802; NO 993740 L 19990928; NZ 336572 A 20010126; RU 2177521 C2 20011227; SE 9704930 D0 19971230

DOCDB simple family (application)

SE 9800191 W 19980203; AT 98903332 T 19980203; AU 6009998 A 19980203; BR 9807978 A 19980203; CA 2280136 A 19980203; CN 98802253 A 19980203; DE 69808437 T 19980203; EP 98903332 A 19980203; ES 98903332 T 19980203; ID 990817 A 19980203; JP 53282298 A 19980203; KR 19997006868 A 19990730; NO 993740 A 19990802; NZ 33657298 A 19980203; RU 99119320 A 19980203; SE 9704930 A 19971230