Foam compositions for surface application to fibrous substrates

Details Foam compositions for surface application to fibrous substrates Foam compositions for surface application to fibrous substrates

C - Chemistry, Metallurgy

08

L

403/83, 403/9

C08L 101/02 (2006.01) C08J 9/12 (2006.01) C08J 9/30 (2006.01) C08L 93/04 (2006.01) D21H 17/45 (2006.01) D21H 17/55 (2006.01) D21H 17/56 (2006.01) D21H 17/62 (2006.01) D21H 21/56 (2006.01)

Patent

CA 1197044

FOAM COMPOSITIONS FOR SURFACE APPLICATION TO FIBROUS SUBSTRATES Abstract of Disclosure Improved rosin-based foams suitable for surface applica- tion to fibrous substrates such as paper and paperboard are described. The foams are obtained by aerating an aqueous solution having a pH of at least 8 and containing 0.1 to 5% of a water-soluble salt of rosin or fortified rosin and 0.02 to 5% of a water-soluble, amine-containing polymer compatible with the salt, the weight ratio of the salt to the polymer being within the range of 1:1 to 25:1.

401847

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