发明名称 |
Flame retardant adhesive sheet |
摘要 |
Provided is a flame retardant adhesive sheet having an adhesive agent layer on at least one surface of a base material, which even when the adhesive agent layer does not contain a flame retardant agent, has both excellent flame retardant properties and adhesive properties. The present invention is concerned with a flame retardant adhesive sheet including an adhesive agent layer on at least one surface of abase material, wherein the base material has flame retardant properties adapted to VTM-0 in a test according to the UL94 standard; a thickness per surface of the adhesive agent layer is 0.6 μm or more, and a total thickness of the adhesive agent layer is not more than 2.2 μm; the adhesive agent constituting the adhesive agent layer does not contain a flame retardant agent but contains (A) an acrylic copolymer and (B) a specified urethane resin. |
申请公布号 |
US9150760(B2) |
申请公布日期 |
2015.10.06 |
申请号 |
US201214129716 |
申请日期 |
2012.09.07 |
申请人 |
LINTEC CORPORATION |
发明人 |
Ohata Kenji;Inao Youichi |
分类号 |
C09J7/02;C09J11/06;C09J133/00;C09J175/04;C08G18/73;C08G18/10;C08G18/48 |
主分类号 |
C09J7/02 |
代理机构 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
代理人 |
Oblon, McClelland, Maier & Neustadt, L.L.P. |
主权项 |
1. A flame retardant adhesive sheet comprising an adhesive agent layer on at least one surface of a base material, wherein
the base material has flame retardant properties adapted to VTM-0 in a test according to the UL94 standard; a thickness of the adhesive agent layer disposed on at least one surface of the base material is 0.6 μm or more, and a total thickness of the adhesive agent layer is not more than 2.2 μm; the adhesive agent constituting the adhesive agent layer does not comprise a flame retardant agent but comprises (A) an acrylic copolymer and (B) a urethane resin; and the urethane resin (B) is a urethane resin which is obtained by allowing an isocyanate-terminated urethane prepolymer obtained by a reaction between (b1) a polyol and (b2) a polyvalent isocyanate compound to react with (b3) a chain extender, the chain extender (b3) comprising (b4) a compound having two hydroxyl groups and/or amino groups and (b5) a compound having three or more hydroxyl groups and/or amino groups, and the component (b4) and the component (b5) being allowed to react with each other in a proportion of from 70/30 to 100/0 in terms of a mass ratio. |
地址 |
Tokyo JP |