STRUCTURE OF FASTENING UNIT AND METHOD OF APPLYING DECORATIVE LAMINATES Russian patent published in 2024 - IPC E04F13/08 E04F13/21 

FIELD: fasteners.

SUBSTANCE: invention relates to variants of the structure of the fastening unit and to a method for applying decorative laminates to a base material to obtain such a structure of the fastening unit for decorative laminates. The technical result is achieved in that the structure of the attachment unit for decorative laminates includes at least two paired decorative laminates attached to the base material, in which at least two paired decorative laminates are used for a vertical surface, in which each of at least two paired decorative laminates has a double-sided adhesive tape pasted along the outer peripheral portion on the back side of the decorative laminate, and a double-sided adhesive tape pasted on the inner portion inwardly from the outer peripheral region to form a section. The elastic adhesive comprising a solvent-free, one-component elastic adhesive based on a modified silicone resin is applied on the outside of the double-sided adhesive tape for the outer peripheral region on the rear side, and elastic adhesive is also applied inside the section formed by the double-sided adhesive tape for the interior. At least two paired decorative laminates include a space between them and are fixed to the base material on their respective rear sides. The double-sided adhesive tape has a total thickness of from 0.03 to 10 mm and has an adhesive strength of from 3 to 30 N/20 mm at a temperature of 23°C or adhesive strength from 1 to 20 N/20 mm at a temperature of 0° according to the 90-degree peel test based on the JIS Z 0237 standard. The technical result is also achieved by another embodiment of the decorative laminate attachment structure, in which each of the at least two paired decorative laminates includes a decorative layer and a core layer. The core layer is configured as a prepreg containing a fiber-based material, an organic binder component and an inorganic filler, in which the total particle diameter Dv(10) of the inorganic filler according to the particle size distribution measuring method using laser diffraction/scattering is 0.5 mcm or more and the total volume particle diameter Dv(90) of the inorganic filler according to the particle size distribution measurement method using laser light diffraction/scattering is 40.0 mcm or less. The technical result is achieved by a method of applying a decorative laminate to a base material to obtain such a structure attachment point for decorative laminate.

EFFECT: adhesion strength.

29 cl, 25 dwg, 6 tbl