METAL COMPLEX/CYANOACRYLATE COMPOSITIONS USEFUL IN LATENT FINGERPRINT DEVELOPMENT

A cartridge useful in detecting fingerprints includes a housing with a chamber therein and an outlet from the chamber. The chamber contains a thermally stable porous or fibrous support impregnated with both: 1) a cyanoacrylate ester, and 2) a volatile, emissive lanthanide metal-complex or actinide m...

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Bibliographic Details
Main Authors SMITH, TERRANCE, P, PALAZZOTTO, MICHAEL, C, EISELE, JOHN, F
Format Patent
LanguageEnglish
French
Published 23.03.1995
Edition6
Subjects
ADHESIVES
CHEMISTRY
DIAGNOSIS
DYES
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
SURGERY
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Summary:A cartridge useful in detecting fingerprints includes a housing with a chamber therein and an outlet from the chamber. The chamber contains a thermally stable porous or fibrous support impregnated with both: 1) a cyanoacrylate ester, and 2) a volatile, emissive lanthanide metal-complex or actinide metal-complex. Upon the application of sufficient heat to the support, the cyanoacrylate and metal complex volatilize and co-deposit on fingerprint residue to enhance the visualization of the fingerprint. Une cartouche utilisée pour détecter les empreintes digitales comporte un boîtier contenant une chambre présentant un orifice de sortie. La chambre contient un support fibreux ou poreux stable, résistant à la chaleur, imprégné 1) d'un ester de cyanoacrylate, et 2) d'un complexe métallique lanthanide ou actinide volatile et émissif. Lorsque l'on applique de la chaleur en quantité suffisante au support, le cyanoacrylate et le complexe métallique se volatilisent et se déposent conjointement sur l'empreinte digitale résiduelle, ce qui augmente la visualisation de cette dernière.
Bibliography:Application Number: WO1994US08567