A method for reducing the permeability of paper and board...

Details A method for reducing the permeability of paper and board... A method for reducing the permeability of paper and board...

D - Textiles, Paper

21

H

D21H 19/10 (2006.01) B32B 29/06 (2006.01) C08F 251/00 (2006.01) D21H 19/14 (2006.01) D21H 27/32 (2006.01) D21J 1/08 (2006.01)

Patent

CA 2124194

2124194 9311300 PCTABS00022 The invention concerns the permeability of paper and board substrate. The permeability of the substrate is reduced by coating it with a modified coating mixture, which is based on a polymer dispersion containing at least one modified starch component. The polymer is prepared preferably by grafting monomers onto the modified starch structure.

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