Universal paper file with insider glued back for bundling docume

Details Universal paper file with insider glued back for bundling docume Universal paper file with insider glued back for bundling docume

1987-11-12

1989-05-23

Bell, Paul A.

Books, strips, and leaves

Book, element thereof, or accessory therefor

Covers

1563073, 281 211, 412900, 412 37, B42D 104

Patent

active

048323713

ABSTRACT:
Universal paper file with inside glued back for bundling documents, of the type consisting of a front cover, a back cover and a back, the inside of the back containing a glue layer including a thermosetting glue, wherein both the glue of said glue layer and the back of the paper file are made of materials that upon thermal activation, enter into a chemical reaction to form a mutual permanent bond therebetween.

REFERENCES:
patent: 3531358 (1970-09-01), Rost et al.
patent: 3954548 (1976-05-01), Polit
patent: 3995886 (1976-12-01), Staats
patent: 4371195 (1983-02-01), Wang et al.
patent: 4660858 (1987-04-01), Flanagan
patent: 4715919 (1987-12-01), Fakirov et al.

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