Forgery-proof security paper and aqueous or organic composition

Details Forgery-proof security paper and aqueous or organic composition Forgery-proof security paper and aqueous or organic composition

1990-08-06

1992-06-23

Jones, W. Gary

Paper making and fiber liberation

Processes and products

Safety, identification and fraud preventing paper

162162, 162158, 1621812, 162165, D21H 1700

Patent

active

051239990

ABSTRACT:
A forgery proof safety paper comprises, on its surface and/or in the body of a paper substrate, at least one compound of the formula ##STR1## wherein R.sub.1 is H or OH, and R.sub.2 is H, COOH, CHO, COR, COOR or alkyl, R being a substituted or unsubstituted, linear, cyclic or aromatic hydrocarbon chain.

REFERENCES:
patent: 227559 (1880-05-01), McMahon et al.
patent: 305292 (1884-09-01), Clapp
patent: 1864116 (1932-06-01), Bausch et al.
Whistler, Roy L. Industrial Guns: Polysaccharides and Their Derivatives, New York, Academic Press, 1959, pp. 265-266.

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