PHOTOPOLYMERIC ACRYLIC OLIGOMER-OLIGOMER COMPOSITION, WEAR-RESISTANT COATING ON ORGANIC GLASS FOR GLASING ELEMENTS OF BUILDINGS, STRUCTURES AND VEHICLES BASED THEREON AND METHOD OF PRODUCING WEAR-RESISTANT COATING Russian patent published in 2012 - IPC C09D133/12 C08F265/06 C08L33/00 C08L33/12 C09D133/00 C08G83/00 

FIELD: chemistry.

SUBSTANCE: disclosed is a novel photopolymer acrylic oligomer-oligomer composition consisting of a bifunctional oligomer, an oligomer with functionality higher than 2, a monomer, a methyl methacrylate oligomer with molecular weight 20000-70000 and a polymerisation initiator, with the following ratio of components in pts.wt: acrylic bifunctional oligomer 15-95; acrylic oligomer with functionality higher than 2 15-70; acrylic monomer 0-25; methyl methacrylate oligomer with molecular weight 20000-70000 5-20; photopolymerisation initiator 0.1-1.0. Disclosed is a wear-resistant coating on organic glass, obtained via photochemically initiated three-dimensional radical polymerisation of the disclosed composition. Disclosed is a method of producing a wear-resistant coating on organic glass, involving a step for preparing a photopolymeric acrylic oligomer-oligomer composition and a step for curing thereof. The technical result is endowing resistance to formation of microcracks during ablation (silver resistance), low shrinkage and high adhesion to a coated substrate obtained via photopolymerisation of acrylic oligomer-oligomer compositions.

EFFECT: invention enables to obtain wear-resistant protective coatings on organic glass with surface hardness close to that of sapphire crystals.

7 cl, 6 tbl, 19 ex