ACRYLATE-BASED MONOMERS FOR USE AS REACTIVE DILUENTS IN PRINTING COMPOSITIONS Russian patent published in 2022 - IPC C09D11/101 C09D11/107 C09D11/30 

FIELD: printing equipment.

SUBSTANCE: invention can be used in making printed articles. Composition for printing contains a compound of formula (I)

,

where X is CR₆R₇; R¹, R², R³, R⁴, R₆, R₇ is H, C₁-C₆-alkyl, C₁-C₆-alkoxy or C₁-C₆-alkoxy-C₁-C₆-alkyl; R⁵ is H or C₁-C₆-alkyl; k is equal to 1, 2, 3, 4 or 5. Composition also includes a monomer having two (meth)acrylate groups and a molecular weight of not more than 500 Da, a polymer having at least two (meth)acrylate groups and a molecular weight of at least 700 Da, and a dye. Amount of the compound of formula (I) and the monomer having two (meth)acrylate groups is at least 50 wt. %. Composition can additionally contain a monomer having at least three (meth)acrylate groups and a molecular weight of not more than 600 Da, a photoinitiator, a stabilizer and other monomers. Invention also discloses a composition for use as a varnish, use of the composition and a printing method.

EFFECT: group of inventions provides a combination of low viscosity, high reactivity and adhesion to plastic substrates in jet printing.

16 cl, 7 tbl, 7 ex