ADESIVO INDURIBILE A BASE DI POLIURETANO

Curable adhesive based on polyurethanes in which the polyol component is a copolymer having an average molecular weight of 2,000 to 20,000 and an OH number of 25 to 160, which is obtainable by copolymerizing a1) an ally polyether monool of the general formula wherein R = H or CH3, R = H or an alkyl...

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Bibliographische Detailangaben
Hauptverfasser:	FOCK JURGEN, SCHEDLITZKI DIETMAR
Format:	Patent
Sprache:	ita
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DYES MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	Curable adhesive based on polyurethanes in which the polyol component is a copolymer having an average molecular weight of 2,000 to 20,000 and an OH number of 25 to 160, which is obtainable by copolymerizing a1) an ally polyether monool of the general formula wherein R = H or CH3, R = H or an alkyl radical having up to 12 carbon atoms, it being also possible for several different R radicals to be present within the chain, and x = 2 to 20, and a2) one or more alkyl esters of acrylic acid having 1 to 8 carbon atoms in the alkyl radical in a molar ratio of a1 to a2 of 1 : 2 to 1 : 15 and a3) if appropriate, up to a total of 20 mol % (relative to the copolymer) of vinylacetamide and/or vinylpyrrolidone, in the presence of one or more initiators.