RADIATION CURABLE COMPOSITIONS Russian patent published in 2013 - IPC C08G18/67 C08G18/42 C09D175/16 

FIELD: chemistry.

SUBSTANCE: present invention relates to a radiation curable coating composition which contains at least one radiation curable oligomer which contains polymerisable unsaturated groups with double bonds, in amount of at least 0.3 mEq/g and has the following formula (I): (C)-(B)-(A)-[(B)(C)]_X, where (A) is a residue of one or more polyesters with hydroxyl functional groups, having molecular weight M_N greater than 900, glass transition point T_G and/or melting point T_m lower than 30°C, which are obtained using an acid component containing at least 75 mol % of a saturated aliphatic polybasic acid having 4-14 carbon atoms and, optionally, 0-25 mol % of another polybasic acid, as well as an alcohol component, (B) is a residue of one or more polyisocyanates, (C) is a residue of one or more unsaturated compounds with double bonds, having hydroxyl groups, and x ranges from 0.5 to 10, wherein said radiation curable coating composition basically does not contain water and volatile organic compounds (VOC). Described is also is a method of making a coated article involving a step where the article is coated with said composition, and use of said composition.

EFFECT: obtaining coatings having high resistance to chemicals and solvents and high flexibility, adhesion and cracking resistance during flexure and fast deformation.

14 cl, 18 ex, 1 tbl