UV CURABLE CONFORMAL COATING WITH IMPROVED LOW TEMPERATURE PROPERTIES

Conformal coating compositions which contain acrylated urethane oligomer, aliphatic monofunctional acrylate esters or a polybutadiene diacrylate or a polyoxyalkylated diacrylate or a monofunctional acryalte of the formula which has a viscosity in the range of 0.1 to 0.2 Pa.s, isobornyl acrylate or i...

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Bibliographische Detailangaben
1. Verfasser:	ALLEN BRENT PUDER
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON 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 ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Conformal coating compositions which contain acrylated urethane oligomer, aliphatic monofunctional acrylate esters or a polybutadiene diacrylate or a polyoxyalkylated diacrylate or a monofunctional acryalte of the formula which has a viscosity in the range of 0.1 to 0.2 Pa.s, isobornyl acrylate or isobornyl methacrylate, a photoinitiator, and polymerization inhibitor exhibit low temperature flexibility and thermal shock resistance. These compositions can be made to have shadow curing ability by including in the composition an organic peroxide which has a 10 hour half life temperature of 85 DEG C. to 105 DEG C. The compositions are solventless and one package. These conformal coatings are useful to coat printed wire boards or printed circuit boards.