MULTILAYER PRESSURE SENSITIVE ADHESIVE Russian patent published in 2018 - IPC C09J7/20 C09J4/02 C09J133/08 B32B7/12 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to the article comprising pressure sensitive adhesive, and to a bonded article. Product includes: (a) substrate (Sa), (b) layer (Lb) of a composition (Cb) that comprises one or more acrylic polymer (POLb) having Tg of -10 °C or lower, and (c) in contact with said layer (Lb), (c) and layer (Lc) of a composition (Cc) that comprises one or more acrylic polymer (POLc) that comprises 20 % to 90 % polymerized units of one or more high-aliphatic vinyl monomer, by weight based on the weight of said polymer (POLc), bonded to the layer (Lb). Bonded article made by a process of contacting a substrate (Sd) with such a pressure sensitive adhesive article, wherein said substrate (Sd) is in contact with said layer (Lc).

EFFECT: better resistance to chemical agents and UV radiation is provided.

4 cl, 2 dwg, 1 tbl, 2 ex