发明名称 |
PROCESS FOR PRODUCTION OF A TRANSFERRABLE PROTECTIVE FILM PRODUCT AND PRODUCT OBTAINED FOR PROTECTING DOCUMENTS OR OTHER ELEMENTS |
摘要 |
A process for producing protection product of a transferrable protective film for covering and protecting the surface of a document or another element, comprising providing a non-stick support sheet (1), at least one printing (2) of a polymerizable liquid mixture of a hydroxylated polyol and an isocyanate or polyisocyanate, for obtaining a thin transparent polyurethane film, covering said film with a transparent adhesive layer (3) and protecting said adhesive layer with a silicone protective sheet (4); the polyurethane film may be transferred without heat to the document to be protected in order to avoid falsification thereof and for protecting the document from external damaging elements.
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申请公布号 |
US5232527(A) |
申请公布日期 |
1993.08.03 |
申请号 |
US19870123677 |
申请日期 |
1987.11.23 |
申请人 |
VERNHET, LOUIS;TRANTOUL, FRANCOIS |
发明人 |
VERNHET, LOUIS;TRANTOUL, FRANCOIS |
分类号 |
B41M3/12;B41M7/00;B44C1/16 |
主分类号 |
B41M3/12 |
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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