C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 228/00 (2006.01) C08F 220/22 (2006.01) C08F 220/24 (2006.01) D21H 17/34 (2006.01) D21H 17/37 (2006.01) D21H 21/16 (2006.01)
Patent
CA 2154529
Oil- and water-repellent papers are treated on the surface or in the pulp of thepapers with fluorine-containing copolymers of a) acrylates containing perfluoroalkyl groups, of the formula CH2=CR1-COO-X-CnF2n+1 (I), b) monomers of the formula CH2=CR2-COO-R3 (II), c) monomers of the formula CH2=CR4-COO-(CH2CH2O)m-R5 (III), d) monomers of the formula CH2=CR6-COO-CH2CH2-N(R7,R8) (IVa) or, in salt-like form, of the formula [CH2=CR6-COO-CH2CH2-N(R7,R8,R9)]?Y? (IVb) or, in N-oxidized form, of the formula Image (IVc) and e) monomers of the formula CH2=CR10CONHR11 (V) these substituents and indices in the formulae having the meaning given in the description and the copolymers comprising the monomers in amounts of a) = 50 to 90% by weight, b)= 1 to 35% by weight, c)= 3 to 20% by weight, d)= 1 to 20% by weight and e) = 0 to 10% by weight. Such copolymers having a content of e) = 0.5 to 10% by weight are new.
Konig Joachim
Korte Siegfried
Michels Gisbert
Zweering Uwe
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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