COMPOSITION OF COLD-CURING FLUID POLYMERIC IMPRESSION COPYING MATERIAL FOR PRECISION DETERMINATION OF TEXTURE, UNSOUNDNESS, QUALITY, AND SHAPE OF THE SURFACE OF OBJECTS Russian patent published in 2004 - IPC

FIELD: science of materials.

SUBSTANCE: invention relates to materials for making solid copies of the surface of objects subjected to metrological control. Composition according to invention contains binder based on unsaturated acrylate compound, in particular, bis(methacryloxyethylene carbonate)diethylene glycol; benzoyl peroxide; tertiary amine; and, additionally, structure-forming component in the form of modified spherical silica particles 5 to 40 mm in size in amount 5 to 25 wt parts of particles per 100 wt parts binder. Binder can also be a mixture of bis(methacryloxyethylene carbonate)diethylene glycol with 2,2-bis(2-hydroxypropoxy-3-methacyloylphenyl)diethylene glycol at ratio 2:1 to 1:2.

EFFECT: enabled revealing and identifying small local damages on surface without destruction of the most lacquer coatings.

22 cl, 1 tbl