Composition for a typewriter ribbon having delayed alteration re

Details Composition for a typewriter ribbon having delayed alteration re Composition for a typewriter ribbon having delayed alteration re

1976-03-26

1978-05-30

Lieberman, Allan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 306R, 260 318C, 260 318N, 260 318G, 260 318H, 260 328N, 260 334R, 260 336R, 260 37N, 260 37NP, 260 4221, 427141, 428914, C08K 500, C09D 1110

Patent

active

040922804

ABSTRACT:
A composition for a correctable typewriter ribbon adapted to be adhesively lifted off from the typing bond to which it is transferred for a short period of time, after which the alteration resistance of a typed indicia changes so that an adhesive lift off operation fails to remove the visible image from the typing bond.

REFERENCES:
patent: 3413184 (1968-11-01), Findlay et al.
patent: 3623908 (1971-11-01), Hermann et al.
patent: 3682683 (1972-08-01), Elbert et al.
patent: 3724633 (1973-04-01), Korb et al.
Bailey et al., "Unitary Correction Tape", IBM Technical Disclosure Bulletin, vol. 13, No. 11, Apr. 1971, p. 3460.

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