| 摘要 |
<p>A soft-feel radiation polymerizable aqueous coating composition comprising: (i) an aqueous polyurethane dispersion having radiation polymerizable ethylenic unsaturation and which is substantially free of groups reactive with hydroxyl functionality under conditions of radiation polymerization; and (ii) an aqueous polyurethane polyol which is substantially free of polymerizable ethylenic unsaturation and which is unreactive with the aqueous polyurethane dispersion (i) under conditions of radiation polymerization; (iii) a photoinitiator; and (iv) water; and wherein the coating composition is free of external crosslinkers reactive with the polyurethane polyol.</p> |
