PHOTOLYTICALLY INDUCED REDOX CURABLE COMPOSITIONS

Photolytically induced redox curable compositions, which show a delayed onset of cure resulting in controllable "open times" for the end user consumer, are provided. These compositions are activated by exposure to electromagnetic radiation, such as UV/VIS radiation with a wavelength in the...

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Bibliographische Detailangaben
1. Verfasser:	KONARSKI, MARK, M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS AS ADHESIVES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Photolytically induced redox curable compositions, which show a delayed onset of cure resulting in controllable "open times" for the end user consumer, are provided. These compositions are activated by exposure to electromagnetic radiation, such as UV/VIS radiation with a wavelength in the range of 254-470 nm, but show a commercially meaningful "open time" prior to cure. This property is particularly attractive when opaque substrates and/or substrates with low transmissivity are to be assembled. Cette invention concerne des compositions à durcissement par réaction redox initiée par photolyse, présentant une initiation du durcissement ralentie, de façon à offrir au consommateur final des « temps ouverts » contrôlables. Lesdites compositions sont activées par exposition à un rayonnement électromagnétique tel qu'un rayonnement UV-visible d'une longueur d'onde allant de 254 à 470 nm tout en présentant un « temps ouvert » avant le durcissement qui est significatif du point de vue commercial. Cette propriété est particulièrement avantageuse lors de l'assemblage de substrats opaques et/ou de substrats à faible transmissivité.