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Patent No. 5307162

Cloaking System Using Optoelectronically Controlled Camouflage

A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.

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Class 552/231 - Oxygen, sulfur or halogen bonded directly to the additional ring


Subclass of Class 552 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein the additional ring has halogen, sulfur
No. of patents: 13
Last issue date: 03/07/2000


NumberTitleIssue Date
6033445Dye mixtures and their use
Concentrated aqueous dye solutions, which comprise 5 to 50% by weight of at least one dye of formula (1) ##STR1## wherein X and Y are each independently of the other hydrogen or C1 -C4 alkyl or C1 -C4 alkox...
03/07/2000
5493036Fibre-reactive anthraquinone dyes, their preparation and the use thereof
The invention relates to fibre-reactive anthraquinone dyes of formula ##STR1## wherein R1, R2, B, U, R and n are as defined in claim 1. The anthraquinone dyes of formula (1) are suitable for dyeing or printing hydroxyl group con...
02/20/1996
5416227Dye salts of the anthraquinone dye series
The invention includes printing ink compositions containing an organic solution of a film-forming polymer and a dye salt of formula ##STR1## wherein R is a group of formula ##STR2## wherein R1 is C1 -4 alkyl, R
05/16/1995
5278292Fiber-reactive dyes which contain a ureidoalkylene group
Water-soluble fiber-reactive dyes are described conforming to the below-indicated formula (1) which are capable of dyeing hydroxyl- and/or carboxamido-containing material, in particular fiber material, such as wool and in particular cellulose fiber materi...
01/11/1994
4968782Fibre-reactive dyes containing a substituted sulfonylaminocarbonyl group
Reactive dyes of the formula ##STR1## in which D is the radial of an anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetrac...
11/06/1990
4707545Process for the preparation of lithium salts of anionic dyes by reacting the calcium salts with lithium sulfate or lithium hydrogen sulfate
Lithium salts of anionic dyes are prepared by first converting another salt of this anionic dye in aqueous solution or suspension by means of a compound which releases calcium ions into the water-insoluble or sparingly water-soluble calcium salt of the dy...
11/17/1987
4501592Anthraquinone dyes, process for their preparation, and use thereof
The invention relates to dyes of the formula ##STR1## wherein X is oxygen or sulfur, R is hydrogen or C1 -C4 alkyl, Y is an unsubstituted or substituted aryl radical, n is 1, 2 or 3, the benzene ring A may be substituted by halo...
02/26/1985
4315865Process for the production of sulfuric acid semiester compounds by sulfation in a machine employing kneading action
Improved process for the sulfatation of the hydroxy group of a ଲ-hydroxy-ethylsulfonyl group present in compounds selected from the dyestuff class which comprises carrying out the reaction in a machine operating with a kneading action and effect and...
02/16/1982
4294578Colorants
Use of compounds which, in the form of the free acid, correspond to the formula ##STR1## in which Z represents halogen or alkylcarbonylamino with 1-4 C atoms in the alkyl radical, m is 0, 1 or 2 and n, r and s represent the numbers 0 or 1 with the pr...
10/13/1981
4238400Anthraquinone dyes
Anthraquinone dyes having the formula: ##STR1## wherein R represents an optionally substituted alkyl, aryl, cycloalkyl, alkoxy, aryloxy or cycloalkoxy radical and each of R1 and R2, independently, represents hydrogen or a C...
12/09/1980
4105662Antraquinone dyestuffs
Reactive dyestuffs of the formula ##STR1## WHEREIN R1, R2, R3, X, Y and Z have the meaning given in the description and their use for the dyeing and printing of materials which contain hydroxyl groups and materials wh...
08/08/1978
3958930Deep-dyed nylon fiber and dyed styling yarn
Deep-dyed nylon fiber and dyed styling yarn which have been dyed from an aqueous dye bath having a pH of 4-7 and containing novel orange and/or compatible yellow, orange, red, blue, blue-green or green disulfonated or monosulfonated/monocarboxylated monoa...
05/25/1976
3939113Process for the bulk dyeing of polyesters
Process for the bulk dyeing of polyesters, characterised in that the dyestuffs used are anthraquinone derivatives of the formula ##SPC1## Wherein Q denotes one of the bridge members --O-- or --CO--, R denotes hydrogen or an alkyl group containing 1-4 carb...
02/17/1976
 
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