Polyisocyanate mixtures of isomers and homologues of the diphenylmethane series and their use as adhesive additive

The invention relates to polyisocyanate mixtures of isomers and homologues of the diphenylmethane series having an NCO content of 30 to 33 % by weight, an average number functionality of 2.8 to 3.5 and a content of 0 to 12 % by weight of methylene-diphenyl isocyanates, 46 to 98 % by weight of dimeth...

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Bibliographische Detailangaben
Hauptverfasser:	WENNER,GOTTHILF,DR, HUMMERICH,RAINER,DR, OHLINGER,RAINER,DR, FUESSL,RUEDIGER, HORACEK,HEINRICH,DR
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS 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 CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	The invention relates to polyisocyanate mixtures of isomers and homologues of the diphenylmethane series having an NCO content of 30 to 33 % by weight, an average number functionality of 2.8 to 3.5 and a content of 0 to 12 % by weight of methylene-diphenyl isocyanates, 46 to 98 % by weight of dimethylene-triphenylene triisocyanates, 1 to 13 % by weight of trimethylene-tetraphenylene tetraisocyanates and 1 to 29 % by weight of higher ring polymethylene-polyphenylene polyisocyanates, where the said percentages add up to 100 % by weight, and the use of these polyisocyanate mixtures as an adhesive additive.