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Browse Prior Art Database

Orange Leucodyes for Molecular Matrix Printing

IP.com Disclosure Number: IPCOM000044071D
Original Publication Date: 1984-Oct-01
Included in the Prior Art Database: 2005-Feb-05
Document File: 2 page(s) / 19K

Publishing Venue

IBM

Related People

Gendler, P: AUTHOR [+2]

Abstract

The following formulation provides an orange leucodye of the general type shown in U.S. Patent 4,309,255. It is noted that orange is akin to combining a red and yellow dye, and it gives the possibility of a two-component black dye (blue plus orange). The dye form is 6-chloro-5H-benzo(a)phenothiaz-5-one 1 (structure not shown), and the leuco form is 6-chloro-5-hydroxy-12H-benzo(a)phenothiazine 2. The formula of the leucodye is: (Image Omitted) where R is a member selected from the group consisting of CH3CO-, HOOCCO-, and HOOCR1CO-, where R1 is a saturated or unsaturated alkyl group containing from 2 to 4 carbon atoms. This article replaces the one published in the IBM Technical Disclosure Bulletin 26, 5932 (April 1984).

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Orange Leucodyes for Molecular Matrix Printing

The following formulation provides an orange leucodye of the general type shown in U.S. Patent 4,309,255. It is noted that orange is akin to combining a red and yellow dye, and it gives the possibility of a two-component black dye (blue plus orange). The dye form is 6-chloro-5H-benzo(a)phenothiaz-5-one 1 (structure not shown), and the leuco form is 6-chloro-5-hydroxy-12H- benzo(a)phenothiazine 2. The formula of the leucodye is:

(Image Omitted)

where R is a member selected from the group consisting of CH3CO-, HOOCCO- , and HOOCR1CO-, where R1 is a saturated or unsaturated alkyl group containing from 2 to 4 carbon atoms. This article replaces the one published in the IBM Technical Disclosure Bulletin 26, 5932 (April 1984).

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