Photocurable film adhesives

Details Photocurable film adhesives Photocurable film adhesives

1994-11-14

1997-10-07

Berman, Susan W.

Stock material or miscellaneous articles

Composite

Of epoxy ether

4284237, 4284246, 522 92, 522 93, 522107, 522101, 522111, C09J 700, C09J15900, C09J16310, C09J16707

Patent

active

056746237

ABSTRACT:
A solid photocurable film adhesive comprising (I) a photocurable material having, on average, more than one acrylic group per molecule, at least 20% by weight of said material being a urethane acrylate, a polyester acrylate or a mixture of a urethane acrylate and a polyester acrylate, (II) as sole or major solid film-forming component, a solid polyvinylacetal and (III) a photoinitiator for photopolymerisation of acrylic compounds.
The film adhesive is useful in the production of data-carrying laminates such as identity cards.

REFERENCES:
patent: 2819248 (1958-01-01), Casebolt
patent: 4194955 (1980-03-01), Nowak et al.
patent: 4228232 (1980-10-01), Rousseau
patent: 4389472 (1983-06-01), Neuhans et al.
patent: 4414275 (1983-11-01), Woods
patent: 4722947 (1988-02-01), Thanawalla et al.
Derwent Abstract of DE2607955-A, AN: 77-63257Y/36 Sep., 1977.
Derwent Abst. 87-133662/19 (1987).
Derwent Abst. 86-322303/49 (1986).
Derwent Abst. 38080 E/19 (1982).
Derwent Abst 91-152485/21 (1991).
Derwent Abst. 88-294864/42 (1988).
Derwent Abst. 90-362946/49 (1990).

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