METHOD OF MANUFACTURING PHOTOCHROMIC OPTICAL PRODUCT USING PRELIMINARY PROCESSING BY ORGANIC SOLVENT AND PHOTOCHROMIC COATING Russian patent published in 2018 - IPC C09K9/02 C09D175/14 B05D1/36 B05D3/06 B05D5/06 B32B27/30 B32B7/02 G02B1/10 G02B5/23 

FIELD: physics.

SUBSTANCE: method comprises (i) applying the first organic solvent to the surface of the optical substrate with the formation of the optical substrate surface moistened with the organic solvent, (ii) applying a curable photochromic composition on the optical substrate surface moistened with the organic solvent, and (iii) at least partial curing of the aforementioned curable photochromic coating layer. The curable composition of the photochromic coating comprises the second organic solvent. The first and the second organic solvents may be mixed with each other and may be the same.

EFFECT: reduction of the amount of photochromic composition for the coating formation, reduction of the amount of waste generated while maintaining the quality of the product.

17 cl, 5 dwg, 3 tbl, 1 ex