SELF-CURABLE AND LOW TEMPERATURE CURABLE POLYESTERS

Polyesters having both α,β-unsaturated groups and moieties containing activated methylene or methine groups, such as those of beta- ketoacetate and malonate, are curable in the presence of a base catalysts to form crosslinked networks. Formulations based on such polyesters are suitable for use in co...

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Bibliographische Detailangaben
Hauptverfasser:	HALL, Phillip, KUO, Thauming
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	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 OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON 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:	Polyesters having both α,β-unsaturated groups and moieties containing activated methylene or methine groups, such as those of beta- ketoacetate and malonate, are curable in the presence of a base catalysts to form crosslinked networks. Formulations based on such polyesters are suitable for use in coatings and adhesive applications, and have the characteristics of curing at temperatures less than 230 ° C without the use of isocyanates. L'invention concerne des polyesters contenant des groupes α,β-insaturés ainsi que des fractions contenant des groupes méthylène ou méthine activés, tels que ceux de beta-cétoacétate et de malonate, qui sont durcissables en présence de catalyseurs basiques pour former des réseaux réticulés. Les formulations à base de tels polyesters sont appropriées à une utilisation dans des revêtements et des applications d'adhésif, et présentent des caractéristiques de durcissement à des températures inférieures à 230 °C sans utilisation d'isocyanates.