REPAIR SEAL, METHOD FOR MANUFACTURE OF REPAIR SEAL, AND REPAIR STRUCTURE Russian patent published in 2022 - IPC E04G23/02 B32B7/04 

Abstract RU 2781594 C2

FIELD: building materials.

SUBSTANCE: invention relates to repair seals for building materials, methods for the manufacture of repair seals, and repair structures. The repair seal used for a decorative panel includes at least one primer layer, a painted layer, and a transparent layer stacked on top of each other in the specified order on substrate, while the repair seal contains a repair multilayer main part including a transparent or semitransparent sheet of main material of resin, a repair painted layer located on the front side of the sheet of main material and formed from the same paint as the painted layer, and a repair transparent layer located on the front side of the repair painted layer and formed from the same paint as the transparent layer; and a transparent or semitransparent adhesive layer located on the rear side of the sheet of main material, wherein the adhesive layer is formed from silicone-based resin, wherein the color of the painted layer of the decorative panel is visible through the sheet of main material of resin and the adhesive layer, wherein the sheet of main material contains aromatic polyimide. A method for the manufacture of such a repair seal, and a repair structure containing such a repair seal are also described.

EFFECT: creation of a repair seal, which is resistant to cracking and peeling during the fastening procedure, and which is invisible after repair.

7 cl, 11 dwg, 3 tbl

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RU 2 781 594 C2

Authors

Yamamoto, Khiroaki

Dates

2022-10-14Published

2018-11-14Filed