发明名称 |
Security document comprising a mixture of polyurethanes |
摘要 |
According to the present invention there is provided a laminating element comprising a transparent support coated with a thermally non-reversible layer comprising an ethylene-acrylic acid copolymer, a first polyurethane polymer and a second polyurethane polymer, said layer having a pH of at least 10 and containing a metallic or an amphoteric cation.
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申请公布号 |
US6326082(B1) |
申请公布日期 |
2001.12.04 |
申请号 |
US20000518254 |
申请日期 |
2000.03.03 |
申请人 |
AGFA-GEVAERT |
发明人 |
VERMEULEN LEO;BOULONNE MICHEL;WOUTERS WALTHER;VERTRUYEN DIANE;AERT HUUB VAN |
分类号 |
C08L75/06;C09D123/08;(IPC1-7):B32B27/40 |
主分类号 |
C08L75/06 |
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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