Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1987-11-23
1993-08-03
Gallagher, John J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156239, 156246, 156249, 156277, 283 94, 283109, 428195, 428203, 428204, 428916, B32B 3100
Patent
active
052325270
ABSTRACT:
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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patent: 4389472 (1983-06-01), Neuhaus et al.
patent: 4409383 (1983-10-01), Zalucha et al.
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patent: 4565730 (1986-01-01), Poth et al.
patent: 4640727 (1987-02-01), Janssen
patent: 4822827 (1989-04-01), Bonk et al.
Trantoul Francois
Vernhet Louis
Dutton, Jr. Harold H.
Gallagher John J.
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