D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
9/59
D21H 17/45 (2006.01) D21H 21/10 (2006.01)
Patent
CA 2030540
Abstract of the Disclosure: Paper, board and cardboard are produced by draining a paper stock in the presence of a nonhydrolyzed copolymer which contains, as polymerized units, a) from 99 to 1 mol % of N-vinylformamide and (b) from 1 to 99 mol % of one or more water-soluble basic monomers of the formula Image (I) or Image (II) where R1 is H, CH3 or C2H5, R2, R3 and R4 are each H, CH3, C2H5 or (-CH2-CH2-O-)nH, R5 and R6 are each C1-C10-alkyl, A is C1-C6-alkylene, n is from 1 to 6 and Y6 is an anion, in an amount of from 0.01 to 3.5% by weight, based on dry paper stock.
Freudenberg Enrique
Hartmann Heinrich
Moench Dietmar
Stange Andreas
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
Freudenberg Enrique
Hartmann Heinrich
Moench Dietmar
LandOfFree
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