Patent ID: 8221895

Claim:
A base paper for decorative coating materials which is impregnable with thermosetting resins, comprising a raw paper with 5 to 55% by weight of a white pigment and/or fillers, wherein said raw paper is coated with a coating solution comprised of at least one water soluble modified starch molecule with a polydispersity index Mw/Mn of 10 to 25 and with the molecular weight of said starch molecules selected from the following ranges of average molecular weights (Mw): maximum 6% wt. of the molecules with a molecular weight of 0 to 1,000 g/mole 5 to 20% wt. of molecules with a molecular weight of 1,000 to 5,000 g/mole, 20 to 40% wt. of molecules with a molecular weight of 5,000 to 25,000 g/mole, 20 to 45% wt. of molecules with a molecular weight of 25,000 to 200,000 g/mole, 6 to 22% wt. of molecules with a molecular weight of 200,000 to 1,000,000 g/mole, 0.5 to 5% wt. of molecules with a molecular weight of more than 1,000,000 g/mole.