发明名称 |
Moisture-proof material |
摘要 |
The present invention relates to a moisture-proof material having a polyurethane film substrate and an adhesive layer formed on at least one surface of the substrate, which material shows a tensile strength of not less than 7500 psi, and an elongation at break of not less than 550%. |
申请公布号 |
US9546303(B2) |
申请公布日期 |
2017.01.17 |
申请号 |
US201213597836 |
申请日期 |
2012.08.29 |
申请人 |
NITTO DENKO CORPORATION |
发明人 |
Muta Shigeki;Suzuki Masatoshi |
分类号 |
C09J7/02;B32B27/40;C09J175/08 |
主分类号 |
C09J7/02 |
代理机构 |
Wenderoth, Lind & Ponack, L.L.P. |
代理人 |
Wenderoth, Lind & Ponack, L.L.P. |
主权项 |
1. A moisture-proof material comprising a polyurethane film substrate and an adhesive layer formed on at least one surface of the substrate, which has a tensile strength of 8800-13000 psi and an elongation at break of 780-1500%,
wherein the polyurethane film substrate consists of a polyurethane whose polyol component consists of polyester polyol, wherein the adhesive layer comprises a polyurethane adhesive, wherein the polyurethane adhesive comprises a curing agent, and wherein, when the moisture-proof material is cut into a tape T (1 inch width, 40 cm length), one end (1 inch length) of the tape T is adhered to a glass plate, and 30 cm in length of the tape T is adhered to the glass plate while pulling the other end of the tape along the axis direction of the tape T with a force of 2 kg, and the narrowest part of the tape T on the glass plate has a width larger than 23 mm. |
地址 |
Osaka JP |