Global Patent Index - EP 0889992 A1

EP 0889992 A1 19990113 - SURFACE SIZING OF CELLULOSE-BASED PRODUCTS

Title (en)

SURFACE SIZING OF CELLULOSE-BASED PRODUCTS

Title (de)

OBERFLÄCHENLEIMUNG VON PRODUKTE AUF ZELLULOSEBASIS

Title (fr)

COLLAGE EN SURFACE DE PRODUITS A BASE DE CELLULOSE

Publication

EP 0889992 A1 19990113 (EN)

Application

EP 97916695 A 19970326

Priority

  • SE 9700542 W 19970326
  • SE 9601744 A 19960507
  • US 62561696 A 19960329

Abstract (en)

[origin: WO9737078A1] The invention relates to a method of surface sizing cellulose-based products and to an aqueous sizing composition. The method comprises applying to the surface of cellulose-based products an aqueous dispersion of a copolymer obtainable by free-radical emulsion polymerization of a monomers mixture comprising at least one monomer selected from the group consisting of styrene and derivatives thereof; at least one monomer selected from the group consisting of esters of ethylenically unsaturated carboxylic acids and alkanols; and at least one monomer selected from the group consisting of ethylenically unsaturated carboxylic and sulfonic acids and salt thereof; optionally in combination with other ethylenically unsaturated copolymerizable monomers. The aqueous sizing composition comprises a dispersion of a copolymer obtainable by free-radical emulsion polymerization of such a monomers mixture and an electrolyte.

IPC 1-7

D21H 17/35; D21H 21/16

IPC 8 full level

D21H 19/22 (2006.01); D21H 21/16 (2006.01); D21H 17/34 (2006.01)

CPC (source: EP)

D21H 21/16 (2013.01); D21H 17/34 (2013.01)

Citation (search report)

See references of WO 9737078A1

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 9737078 A1 19971009; AT E201246 T1 20010615; AU 2525297 A 19971022; CA 2250235 A1 19971009; DE 69704859 D1 20010621; EP 0889992 A1 19990113; EP 0889992 B1 20010516; JP 2000507652 A 20000620; JP 3181060 B2 20010703

DOCDB simple family (application)

SE 9700542 W 19970326; AT 97916695 T 19970326; AU 2525297 A 19970326; CA 2250235 A 19970326; DE 69704859 T 19970326; EP 97916695 A 19970326; JP 53519997 A 19970326