发明名称 |
Retroreflective sheeting |
摘要 |
Retroreflective sheeting having excellent weatherability under prolonged outdoor use, which comprises a support sheet in one side of which retroreflective glass beads are embedded as substantially a monolayer in such a manner that at least their non-reflective portions are exposed on said sheet; and a light-transmittable protective film provided on the glass beads on said support sheet, said protective film being partially fixed onto the support sheet; in which at least the surface layer of the support sheet in which the glass beads are embedded is formed of a resin composition comprising (a) thermofusible resin(s) having a glass transition temperature not higher than 50 DEG C. and (a) cellulose derivative(s) having a glass transition temperature not lower than 90 DEG C.
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申请公布号 |
US5601915(A) |
申请公布日期 |
1997.02.11 |
申请号 |
US19950404608 |
申请日期 |
1995.03.15 |
申请人 |
NIPPON CARBIDE KOGYO KABUSHIKI KAISHA |
发明人 |
OCHI, KATSURA;YOSHIZAWA, MASAKI;TANAKA, OSAMU |
分类号 |
G02B5/128;(IPC1-7):B32B5/16 |
主分类号 |
G02B5/128 |
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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