Compositions – Electrolytes for electrical devices
Patent
1973-07-16
1976-03-23
Wilbur, Maynard R.
Compositions
Electrolytes for electrical devices
96 14, 427 21, G03G 900
Patent
active
039459349
ABSTRACT:
Raised Xerographic printing is produced by the use of thermally intumesced electroscopic powders for the development of the electrophotographic images. Intumescent electroscopic powders are blended with the powdered pigmented "ink" or "Toner" in the ink reservoir of a Xerographic copying machine. The image is formed and transferred to a paper carrier in the wellknown process of Carlson, U.S.P. at No. 2,297,691. The heat used in thermoadhesively attaching the "Toner" to the paper carrier also causes great intumescence of the intumescent powder, resulting in a raised image. The image is similar in appearance and texture to "engraving" or raised thermographic printing. It can be read by the sightless by tactile recognition. The intumescent powder used is made of vinylidene-chloride-acrylonitrile-isobutane as described by the inventor in his Disclosure Document No. 001,078 filed in the U.S. Patent Office on Dec. 22, 1969. Original Application was submitted in raised printing exemplifying this invention. It was produced by the normal copying operation of a Xerox 813 Copier without any mechanical changes using the intumescent "Toner" of the present invention.
REFERENCES:
patent: 3432328 (1969-03-01), Vaurio
patent: 3440076 (1969-04-01), Vaurio
patent: 3484262 (1969-12-01), Halin
patent: 3515569 (1970-06-01), Walters et al.
patent: 3586654 (1971-06-01), Lerman et al.
patent: 3629380 (1971-12-01), Edwards
patent: 3640861 (1972-02-01), Hsia
patent: 3674736 (1972-07-01), Lerman et al.
patent: 3696060 (1972-10-01), Burt
Dow "Foamable Thermoplastic Spheres," Experimentable Product CX-7051.4.
Montone Gregory E.
Wilbur Maynard R.
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