HEAT ACTIVATED PRESSURE SENSITIVE ADHESIVE Russian patent published in 2018 - IPC C09J153/02 C09J7/21 

FIELD: chemistry.

SUBSTANCE: group of inventions refers to a composition for applying to a support containing three components and to a method for producing a heat activated adhesive. In the composition, the first component is a styrene-diene block copolymer containing 10-30 wt% of polymerized units of styrene contained in an amount of 20 up to 80 wt%, wherein the block copolymer is present as a dispersion of copolymer in water and the dispersion contains an organic solvent in an amount of less than 5 wt%, based on the total dispersion weight. Second component of the composition is a plasticizer contained in an amount of 0.5 up to 20 wt%. Third component is a tackifying agent contained in an amount of 20 up to 80 wt%. Method for producing a heat activated pressure sensitive adhesive comprises compositions of the invention as well as applying it to paper or plastic film.

EFFECT: technical result achieved with the use of a group of inventions consists in the production of the heat activated pressure sensitive adhesive that has good adhesive ability and good blocking characteristics.

10 cl, 2 tbl, 8 ex