Elbert L Du from Cincinnati, OH, age 84

Pressure Sensitive Transfer Media
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US Patent:

42118263, Jul 8, 1980
Filed:

Oct 2, 1978
Appl. No.:

5/947632
Inventors:

Elbert Du - Cincinnati OH
International Classification:

B32B 2700
B41M 312
US Classification:

428497
Abstract:

Pressure sensitive image transfer media in the form of a thin film substance having a thin layer thereon comprising the solvent evaporated residue of a liquid mixture made up of substantially equal amounts of ethyl hydroxyl ethyl cellulose and a second resin incompatible therewith in association with a solvent immiscible vehicle modifier of a character incompatible with both of said polymers.

Pressure Sensitive Magnetic Image Transfer Media
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US Patent:

41328353, Jan 2, 1979
Filed:

Mar 25, 1977
Appl. No.:

5/781116
Inventors:

Elbert Du - Cincinnati OH
Assignee:

Frye Copysystems, Inc. - Des Moines IA
International Classification:

H01F 128
B32B 2732
US Classification:

428522
Abstract:

Pressure sensitive magnetic image transfer media in the form of a thin film substrate having a thin layer of solvent evaporated residue of a liquid mixture incorporating substantially equal dispersed amounts of polyethylene homopolymer and magnetically sensible material with small amounts of mutually incompatible dissolved acrylic film forming resin material and ethyl hydroxyl ethyl cellulose.