MARKED POLYMER DISPERSION AND ADHESIVE MADE FROM SAID DISPERSION Russian patent published in 2009 - IPC C09J9/00 C09J11/04 C09D5/02 C08K3/00 C08F292/00 C08L31/00 

FIELD: chemistry.

SUBSTANCE: invention relates to polymer dispersion for marking dispersion adhesives. The polymer dispersion for use in adhesives or coating agents contains water, at least one water-dispersible polymer and at least two different water-soluble salts, chosen from a group of water-soluble salts of Li, Sr or Sn, where at least two of the said water-soluble salts contain a different ion, chosen from a group consisting of Li, Sr or Sn ions, and the total number of ions, chosen from the above mentioned group, is at least 10 parts/million parts. The water-dispersible polymer used in the dispersion is polyvinyl acetate or a copolymer obtained using vinyl acetate. Also described is use of a mixture, containing at least two different water-soluble salts, chosen from a group of water-soluble salts of Li, Sr or Sn, where at least two of the said water-soluble salts contains a different ion, chosen from a group which consists of Li, Sr or Sn ions, for marking dispersion adhesives.

EFFECT: proposed polymer dispersion enables identification of an adhesive even after considerable decomposition of the adhesive matrix.

6 cl, 2 tbl, 3 ex