Coating compositions, papers coated therewith and processes...

Details Coating compositions, papers coated therewith and processes... Coating compositions, papers coated therewith and processes...

C - Chemistry, Metallurgy

08

L

400/1203, 400/13

C08L 61/24 (2006.01) C08L 101/00 (2006.01) D21H 19/38 (2006.01) D21H 19/40 (2006.01) D21H 19/54 (2006.01) D21H 19/58 (2006.01) D21H 19/62 (2006.01) D21H 21/52 (2006.01)

Patent

CA 1061919

Abstract of the Disclosure A coating composition for paper is provided, which composition consists of an aqueous preparation containing at least a poly- meric binder, an inorganic pigment, and a water-insoluble urea- formaldehyde polycondensation product produced in aqueous solution from 1 mole of urea and 1,3 to 2 moles of formaldehyde, which pro- duct is in a highly dispersed form and has a mean particle diameter of 3 to 6 microns, and a specific BET surface urea of 3 to 12 m2/g. Papers coated with these compositions exhibit, in addition to an enhanced degree of whiteness and equally good gloss and im- proved opacity and smoothness, above all better printability.

241640

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