EP 0112525 B1 19870318 - AGENT AND PROCESS FOR NEUTRAL SIZING
Title (en)
AGENT AND PROCESS FOR NEUTRAL SIZING
Publication
Application
Priority
- DE 3245390 A 19821208
- DE 3338087 A 19831020
- DE 3338088 A 19831020
Abstract (en)
[origin: US4591412A] A composition of matter for the neutral sizing of paper, paperboard, cardboard and other cellulose containing materials, is disclosed comprising water; a solvent which is unlimitedly miscible with water, particularly alcohol; a compound which undergoes a basic reaction; alkali aluminate; and a sizing component. When sizing is effected with this agent, the fiber containing suspension is mixed with a retention agent, before or after the addition of the sizing agent, with the sizing agent being activated by way of neutralization.
IPC 1-7
IPC 8 full level
D21H 17/06 (2006.01); D21H 17/14 (2006.01); D21H 17/62 (2006.01); D21H 17/64 (2006.01); D21H 17/66 (2006.01); D21H 23/00 (2006.01)
CPC (source: EP US)
D21H 17/06 (2013.01 - EP US); D21H 17/14 (2013.01 - EP US); D21H 17/62 (2013.01 - EP US); D21H 17/64 (2013.01 - EP US); D21H 17/66 (2013.01 - EP US); D21H 23/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0112525 A1 19840704; EP 0112525 B1 19870318; DE 3370360 D1 19870423; US 4591412 A 19860527
DOCDB simple family (application)
EP 83112302 A 19831207; DE 3370360 T 19831207; US 55996183 A 19831208