In-press coating method

A method and composition are provided for applying a single aqueous coating composition to a composite substrate during an in-press molding operation to achieve (i) improved initial whiteness in a white pigmented composition, (ii) excellent color retention / stability and (iii) excellent press relea...

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Bibliographische Detailangaben
Hauptverfasser:	DEMASI, ANNE SETON, LAUER, ROSEMARIE PALMER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL METALLURGY NAILING OR STAPLING MACHINES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL WORKING-UP
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Beschreibung
Zusammenfassung:	A method and composition are provided for applying a single aqueous coating composition to a composite substrate during an in-press molding operation to achieve (i) improved initial whiteness in a white pigmented composition, (ii) excellent color retention / stability and (iii) excellent press release properties. The aqueous coating composition incorporates an ion exchange resin and serves as a combined sealer and topcoat finish for press molded composite substrates.