EP 0014520 A1 19800820 - Method of sizing paper.
Title (en)
Method of sizing paper.
Title (de)
Verfahren zur Leimung von Papier.
Title (fr)
Méthode d'encollage du papier.
Publication
Application
Priority
US 955479 A 19790205
Abstract (en)
A starch which has been reacted with a dicarboxylic acid anhydride such as octenyl succinic anhydride is applied to a formed paper web from the size press. The starch combines with a multivalent metal ion e.g. (aluminium) already present in the paper web to become hydrophobic, and thereby impart a high level of water resistance concentrated at the surface of the paper.
IPC 1-7
IPC 8 full level
D21H 17/28 (2006.01); D21H 19/34 (2006.01)
CPC (source: EP)
D21H 17/28 (2013.01)
Citation (search report)
- FR 2303114 A1 19761001 - NALCO CHEMICAL CO [US]
- FR 2370772 A1 19780609 - NAT STARCH CHEM CORP [US]
Designated contracting state (EPC)
DE GB SE
DOCDB simple family (publication)
EP 0014520 A1 19800820; EP 0014520 B1 19830525; CA 1143914 A 19830405; DE 3063384 D1 19830707; JP S55107598 A 19800818; NO 800284 L 19800806
DOCDB simple family (application)
EP 80300078 A 19800108; CA 333961 A 19790817; DE 3063384 T 19800108; JP 1295080 A 19800205; NO 800284 A 19800204