Patent ID: 9540477
Date: 2017-01-10
CPC Classifications: C08F,C08G,C09D

Claim:
1. An ethylenically unsaturated hydroxyl-terminated polyurethane (I) obtained by reacting (i) at least one ethylenically unsaturated compound (A) containing at least two reactive groups capable of reacting with isocyanate groups and at least one ethylenically unsaturated group, wherein the ethylenically unsaturated hydroxyl-terminated polyurethane (I) has the at least one ethylenically unsaturated compound (A) is incorporated into its backbone; (ii) at least one saturated alcohol component (B) comprising: (iii) optionally, at least one ethylenically unsaturated compound (C) containing essentially one reactive group capable of reacting with isocyanate groups; and (iv) at least one polyisocyanate (D); wherein the reactive groups capable of reacting with isocyanate groups are hydroxyl groups, wherein compound (A) is used in an amount of from 25 to 65% by weight, relative to the total weight of the polyurethane (I), and wherein the polyurethane (I) has a hydroxyl value of between 5 and 60 mg KOH/g.