Patent US3574880A successfully refreshed from Google Patents.
Patent EP0251139A2 successfully refreshed from Google Patents.
EP0251139A2
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EP
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Chemiluminescent composition, and a reactive component suitable for such a composition
Assignee: Pfizer Italia SRL
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Filing: 1987-06-23
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Granted: —
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Expires: 2007-06-23
Abstract
Abstract The invention relates to a chemiluminescent composition, ie one which emits light when its various constituent components are mixed together. The composition consists of a least two separate solutions of at least one oxalate, at least one fluorescent substance, hydrogen peroxide and at least one catalyst, in which those componenets which react together are kept separated. The characteristic of the 9,10-bis(phenylethynyl)anthracene is that the oxalate is a bis(dihalo-acylphenyl)oxalate. This compound is easily and economically produced and is easily soluble in the solvents used, to provide high-intensity light emission for long time periods. The 2,4- or 2,6-acyl substituted phenyloxalate also forms a subject matter of the invention.
Inventors
- 👤 Giampiero Borsotti
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 13:52
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; C09K11/07
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
A chemiluminescent composition formed from at least two separate solutions in which those components which react with each other are kept separated, the components being chosen from the group comprising at least one oxalate, at least one fluorescent substance, hydrogen peroxide and at least one catalyst chosen from the group consisting of alkaline salts of long-chain carboxylic acids and sodium and potassium salicylates, characterised in that said oxalate is a bis(dihalo-acylphenyl) oxalate, the hydrogen peroxide being present in the proportion of between 2 and 10 moles per mole of oxalate.
Claim 2
Dependent Claim
90 words
A chemiluminescent composition formed from at least two separate solutions in which those components which react with each other are kept separated, the components being chosen from the group comprising at least one oxalate, at least one fluorescent substance, hydrogen peroxide and at least one catalyst chosen from the group consisting of alkaline salts of long-chain carboxylic acids and sodium and potassium salicylates, characterised in that said oxalate is a bis(dihalo-acylphenyl) oxalate, the hydrogen peroxide being present in the proportion of between 2 and 10 moles per mole of oxalate.
Claim 3
Dependent Claim
23 words
A chemiluminescent composition as claimed in claim 1, characterised in that said bis(dihalo-acylphenyl)oxalate is chosen from the group consisting of bis(2,6-dichloro-4-hexanoylphenyl)oxalate and bis(2,6-dibromo-4-hexanoylphenyl)oxalate.
Claim 4
Dependent Claim
28 words
A chemiluminescent composition as claimed in claims 1 and 2, characterised in that said fluorescent substance is chosen from the group consisting of 9,10-bis(phenylethynyl)anthracene, 9,10-diphenylanthracene and isobutyl 3,9-perylenedicarboxylate.
Claim 5
Dependent Claim
33 words
A chemiluminescent composition as claimed in claim 3, characterised in that said catalyst is chosen from the group consisting of sodium or potassium salicylate, sodium or potassium stearate, and sodium or potassium ethylhexanoate.
Claim 6
Dependent Claim
69 words
A chemiluminescent composition as claimed in claims 1 to 4, characterised in that said components are dissolved in the respective solvents in quantities of between 0.01 and 0.3 moles/ litre in the case of the oxaalate, between 0.05% and 0.15% in the case of the fluorescent substance, between 0.001% and 0.00001% in the case of the catalyst, and between 3% and 20% in the case of the hydrogen peroxide.
Claim 7
Dependent Claim
73 words
A chemiluminescent composition as claimed in claim 5, characterised in that said components are dissolved in the respective solvents in quantities of between 0.05 and 0.15 moles/litre in the case of oxalate, between 0.07% and 0.12% in the case of the fluorescent substance, and between 5% and 10% in the case of the hydrogen peroxide, the hydrogen peroxide being present in the proportion of between 5 and 8 moles per mole of oxalate.
Claim 8
Dependent Claim
34 words
A chemiluminescent composition as claimed in claims 1 to 6, characterised in that a first solution contains said oxalate and the fluorescent substance, and a second solution contains said catalyst and the hydrogen peroxide.
Claim 9
Dependent Claim
55 words
A chemiluminescent composition as claimed in claim 7, characterised in that the solvent for said first solution is chosen from the group consisting of methyl tert-butylether, methyl, butyl, ethylhexyl and similar phthalates, and butyl and ethylhexyl acetates, the solvent for said second solution being chosen from the group consisting of methyl tert-butylether and tertiary alcohols.
Claim 10
Dependent Claim
9 words
Bis(dihalo-acylphenyl)oxalate, as an active component of a chemiluminescent composition.
Claim 11
Dependent Claim
9 words
Bis(dihalo-acylphenyl)oxalate, as an active component of a chemiluminescent composition.
References Cited (Backward Citations)
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