D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
400/5054
D21H 19/60 (2006.01) D21H 19/58 (2006.01)
Patent
CA 1143883
O.Z. 0050/033671 Abstract of the disclosure: An improved paper-coating composition which contains, per 100 parts by weight of a finely divided pigment, from 5 to 25 parts by weight of a copolymer A, in the form of an aqueous dispersion, as a binder, and from 0.5 to 10 parts by weight of a copolymer B, containing (a) from 20 to 70% by weight of copolymerized units of hydroxy-C2-C4-alkyl acrylates or hydroxy-C2-C4-alkyl meth- acrylates, (b) from 10 to 50% by weight of copolymerized units of acrylic acid, methacrylic acid, maleic acid and/or mono- esters of maleic acid and (c) from 5 to 50% by weight of copolymerized units of acrylonitrile, methacrylonitrile, C1-C4-alkyl acrylates or C1-C4-alkyl methacrylates, or vinyl esters of saturated C2-C4-carboxylic acids as the co-binder, with or without from 0.1 to 2.0 parts by weight of an optical brightener which is activated by the co-binder. The paper-coating composition has high water retention.
344601
Hirsch Guenter
Wendel Kurt
Basf Aktiengesellschaft
Borden Ladner Gervais Llp
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