ULTRAVIOLET-CURABLE COATING AGENT AND MOLDED ARTICLE

• Main Authors: TSUBOKURA YUTAKA, MACHIDA YOSHINORI, FUKATSU FUMIOKI
• Format: Patent
• Language: English
• Published: 16.02.2010
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHYSICS; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

Disclosed is an ultraviolet-curable coating agent containing a hydrophilic polymer having a specific structure represented by the general formula (1) below, a polymerizable urethane oligomer, a water-soluble monomer, a photopolymerization initiator, and a water-absorbing filler. The polymerizable urethane oligomer is preferably made from a carboxyl group-containing hydroxyl compound, a polymer polyol, an organic diisocyanate compound and a hydroxyl group-containing acrylate, and preferably has a number average molecular weight of not less than 1,000 but not more than 10,000. By applying such an ultraviolet-curable coating agent over the surface of a base, there is formed an ink-receiving layer which is excellent in ink absorption, dryability of printed images, bleeding properties, tack resistance and water resistance. P: an integer not less than 2 R1:-H or-CHR2:-H or an alkyl group represented by-CH(wherein m is an integer of 1-8) R3: an alkylene group represented by-CH-(wherein n is an integer of 1-8) R4, R5:-H or an alkyl group represented by-CH(wherein o is an integer of 1-8)