METHODS FOR LASER ABLATION/LASER SCRIBING OF COATINGS OF LAYERED STRUCTURES OBTAINED BY PRELIMINARY AND SUBSEQUENT APPLICATION OF LAYERS, AND/OR RELATED METHODS Russian patent published in 2021 - IPC B32B17/10 B32B15/04 B23K26/364 

FIELD: coatings.

SUBSTANCE: invention relates to the field of layered materials containing a metallization layer for the use in mirror and low-emission coatings, in particular heat-insulating double-glazed windows. Some illustrative embodiments of the present invention relate to methods for laser ablation/laser scribing of peripheral edges of coating (for example, low-emission coating, mirror or other coating) on glass or other substrate of a layered structure obtained by preliminary and subsequent application of layers, of heat-insulating double-glazed windows obtained by preliminary and subsequent assembly, and/or other products to slow down or prevent corrosion of coating. A laser operating at a wavelength of 1064 nm can be used to apply scribing lines to the metallization layer(s) and/or metal layer(s) in low-emission or other coating provided in an already created layered or already assembled heat-insulating double-glazed window or other product, for example, along its periphery.

EFFECT: scribing lines reduce the mobility of electrons when moving from the center of coating into the environment and, thus, slow down, and sometimes even prevent the occurrence of electrochemical corrosion.

19 cl, 10 dwg, 3 ex