ADHESIVE TAPE Russian patent published in 2023 - IPC C09J7/24 C09J7/30 C09J183/04 B32B27/08 B32B27/38 

FIELD: adhesive tapes.

SUBSTANCE: invention relates to an adhesive tape comprising a backing made of a fluorine-containing resin. The adhesive tape comprises a substrate made of a fluorine-containing resin, and a silicone-based adhesive layer located on one surface of the substrate, where the surface of the silicone-based adhesive layer, which is opposite to the surface of the layer from the side of the substrate, forms an adhesive surface, the adhesive tape has a thickness of 50 mcm or more and 300 mcm or less, the adhesive strength of the adhesive surface to another surface of the substrate after the friction test is 4.0 N/19 mm or more and 8.0 N/19 mm or less, and the friction test is carried out in accordance with by the friction coefficient test method provided in JIS K7125:1999, and carried out in a state where the contact surface of the sliding part used in the test method, brought into contact with the test surface, is covered with a single fiber cloth (cotton, for friction) provided in JIS L0803 2011, the other surface of the substrate is defined as the test surface, and the number of reciprocations is set to 10. The other surface of the substrate is subjected to a Na treatment, and the Na treatment is a surface treatment using a treatment liquid containing metallic sodium.

EFFECT: providing an adhesive tape suitable for various applications that require stable maintenance of the wound state after actual winding work, for example, for repairing a power cable through which power is supplied to an artificial lift unit using an electric centrifugal submersible pump.

4 cl, 4 dwg, 1 tbl, 6 ex