发明名称 |
Radical-curable hot-melt urethane resin composition and optical molded body |
摘要 |
A radical-curable hot-melt urethane resin composition includes 100 parts by mass of a hot-melt urethane (X) having a (meth)acryloyl group and 0.5 to 5.0 parts by mass of a radical polymerization initiator (Y), wherein the hot-melt urethane (X) is obtained by introducing, using a (meth)acrylate compound (D) having an active-hydrogen-containing group, a (meth)acryloyl group into a hot-melt urethane prepolymer (C) that has isocyanate groups at its terminals and is obtained by a reaction of a polyol (A) and an alicyclic polyisocyanate (B), the polyol (A) containing an aliphatic polycarbonate polyol (a1), an alicyclic polycarbonate polyol (a2), or an aliphatic polyether polyol (a3), in an amount of more than 50 mol % and 100 mol % or less of the total number of isocyanate groups of the urethane prepolymer (C). |
申请公布号 |
US9018319(B2) |
申请公布日期 |
2015.04.28 |
申请号 |
US201113809266 |
申请日期 |
2011.12.21 |
申请人 |
DIC Corporation |
发明人 |
Kanagawa Yoshinori;Higuchi Daichi;Sakamoto Tamotsu |
分类号 |
C08L75/04;C08G18/67;C08G18/44;C08G18/48;C08G18/10;C08G18/83;C09J4/00;C08G18/75;C08G18/12;C09D175/16;C08F299/06 |
主分类号 |
C08L75/04 |
代理机构 |
Westerman, Hattori, Daniels & Adrian, LLP |
代理人 |
Westerman, Hattori, Daniels & Adrian, LLP |
主权项 |
1. A radical-curable hot-melt urethane resin composition comprising 100 parts by mass of a hot-melt urethane (X) having a (meth)acryloyl group and 0.5 to 5.0 parts by mass of a radical polymerization initiator (Y), wherein the hot-melt urethane (X) is obtained by introducing, using a (meth)acrylate compound (D) having an active-hydrogen-containing group, a (meth)acryloyl group into a hot-melt urethane prepolymer (C) that has isocyanate groups at its terminals, has a melt viscosity of 500 to 5000 mPa·s at 100° C., and is obtained by a reaction of a polyol (A) and an alicyclic polyisocyanate (B), the polyol (A) containing an aliphatic polycarbonate polyol (a1), an alicyclic polycarbonate polyol (a2), or an aliphatic polyether polyol (a3), in an amount of more than 50 mol % and 100 mol % or less of the total number of isocyanate groups of the urethane prepolymer (C),
wherein the polyol (A) further contains an alicyclic polyester polyol (a4). |
地址 |
Tokyo JP |