1
Peter L Foris, Robert W Brown, Paul S Phillips Jr: Capsule manufacture. NCR Corporation, E Frank McKinney, January 4, 1977: US04001140 (162 worldwide citation)

A process is disclosed for performing encapsulation, en masse, by an in situ polymerization reaction to yield capsule wall material. The polymerization includes a reaction between urea and formaldehyde in an aqueous vehicle and the reaction is conducted in the presence of negatively-charged, carboxy ...


2
Robert W Brown, Richard P Bowman: Capsule manufacture. Appleton Papers, E Frank McKinney, Paul S Phillips Jr, November 12, 1985: US04552811 (48 worldwide citation)

A process is disclosed for performing encapsulation, en masse, by an in situ polymerization reaction to yield capsule wall material. The reaction comprises the polymerization of urea and formaldehyde, or monomeric or low molecular weight polymers of dimethylol urea or methylated dimethylol urea, mel ...


3

4
Donald E Hayford: Capsule manufacture. Appleton Papers, E Frank McKinney, Paul S Phillips Jr, April 24, 1984: US04444699 (40 worldwide citation)

A process is disclosed for performing encapsulation, en masse, by an in situ polymerization reaction to yield capsule wall material. The polymerization comprises a reaction between melamine and formaldehyde and/or polycondensation of monomeric methylol melamine or etherified methylol melamine, or a ...


5
Henry H Baum: Two color thermally sensitive record material system. NCR Corporation, E Frank McKinney, Paul S Phillips Jr, May 1, 1979: US04151748 (33 worldwide citation)

A thermally sensitive record medium is disclosed. Data is generated on the record medium in response to an application of heat. The record medium is capable of generating data images in more than one color by exposing the medium to more than one temperature level in areas to be imaged. Overlap or in ...


6
Erland C Porter Jr: Pressure-sensitive record material. NCR Corporation, E Frank McKinney, Robert J Shafer, December 7, 1976: US03996405 (22 worldwide citation)

Record material comprising paper sheet material coated with liquid-containing microcapsules wherein the liquid contents comprise ethyldiphenylmethane. Said liquid is associated on the record material with at least two color-producing reactants, at least one of which is soluble in said liquid. The en ...


7
Sheldon Farber: Di-vinyl phthalides color formers. NCR Corporation, E Frank McKinney, April 26, 1977: US04020056 (21 worldwide citation)

A chromogenic compound of normally colorless form is disclosed having the following structural formula: ##STR1## wherein A and B can be ##STR2## X, Y and Z can be, among several others, hydrogen, alkyl, alkoxy, aryl, and heterocyclic, substituted and unsubstituted; and E can be a broad family of aro ...


8
Robert E Miller, Robert W Brown, Paul S Phillips Jr: Single coating record system-solvent loss produces color. NCR Corporation, E Frank McKinney, March 15, 1977: US04012554 (19 worldwide citation)

A colorless liquid ink is provided which yields a distinctive marking color on exposure to normal environmental conditions of temperature and pressure as when used for writing on a sheet of plain paper. This ink may be encapsulated to give pressure-rupturable microcapsules. Autogenous, pressure-sens ...


9
Sheldon Farber: Aminophenyl lactone compounds containing an ethyleno group. NCR Corporation, E Frank McKinney, May 10, 1977: US04022771 (18 worldwide citation)

A chromogenic compound of normally colorless form is disclosed having the following structural formula: ##STR1## T, Q, X, Y and Z can be, among several others, hydrogen, alkyl, alkoxy, aryl, and heterocyclic, substituted and unsubstituted; and E can be a broad family of aromatic and heterocyclic str ...


10
Kenneth D Glanz: Thermally-responsive record material. Appleton Papers, E Frank McKinney, Paul S Phillips Jr, September 4, 1984: US04470057 (18 worldwide citation)

A thermally-sensitive color-forming composition is disclosed which comprises chromogenic material, acidic developer material and a phenylhydroxynaphthoate compound. Record material comprising this color-forming composition exhibits improved color-forming efficiency and/or image density.