发明名称 |
Capsule type retroreflective sheeting |
摘要 |
This invention provides a capsule type retroreflective sheeting excelling in strength and long-term weatherability, the connecting walls, which partially connect the light-transmitting protective film and support film while retaining the spaces between the two films, being free of internal flaws such as deficiently filled portions and having uniform structure and shape. The capsule type retroreflective sheeting in which the connecting walls are formed by partially thermofusing and thermoforming the support film is characterized in that the support film is composed of a resin composition which contains a thermofusible rein and a crosslinking agent, said thermofusible resin having a shearing stress at 180 DEG C within a range of 9 x 10<3> - 1 x 10<5> dyne/cm<2> , and which can form a non-fusible crosslinked resin having a shearing stress at 180 DEG C of at least 1 x 10<6> dyne/cm<2> after the crosslinkage. |
申请公布号 |
EP0714040(A3) |
申请公布日期 |
1997.03.12 |
申请号 |
EP19950118541 |
申请日期 |
1995.11.24 |
申请人 |
NIPPON CARBIDE KOGYO KABUSHIKI KAISHA |
发明人 |
OCHI, KATSURA;TANAKA, OSAMU;OGAWA, MANABU |
分类号 |
G02B5/124;G02B5/128 |
主分类号 |
G02B5/124 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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