EXTRUDABLE PRESSURE-SENSITIVE ADHESIVE BASED ON POLYBUTENE-1 POLYMER AND STYRENE COPOLYMER, SUITABLE FOR PACKAGES WITH POSSIBILITY OF RE-CLOSING Russian patent published in 2021 - IPC C09J123/20 

FIELD: packaging.

SUBSTANCE: invention relates to a composition of pressure-sensitive adhesive containing: i) at least one butene-1 (co)polymer; ii) at least one liquid sticking agent; iii) at least one solid sticking agent; iv) at least one styrene copolymer; v) optionally, at least one additional (co)polymer other than i) and iv); vi) optionally, at least one additive. Besides, the use of the composition of pressure-sensitive adhesive is proposed in accordance with the invention as a means of re-closing for a packaging unit for food products, for packaging units heated in a microwave oven or in an oven, for a means of closing for a packaging unit for drugs, hygienic napkins, cleaning napkins or cosmetic napkins. A product containing the composition of pressure-sensitive adhesive in accordance with the invention and a method for producing a product are proposed.

EFFECT: invention allows for obtaining pressure-sensitive adhesive having a capability of re-closing, as well as having high flexibility at low temperatures, which can be used during extrusion with thermoforming.

15 cl, 1 tbl