VERFAHREN ZUR HEISSVERSIEGELUNG MIT EINEM HEISSSIEGELFAEHIGEN BESCHICHTUNGSMITTEL

The invention relates to a process for the heat-sealing of a plastic substrate against a metal substrate by means of a heat-sealable coating composition which comprises a film-forming dispersion built up from at least two different polymer types A and X, each having different adhesive properties, in...

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Main Authors WICKE, MICHAEL, 6104 SEEHEIM-JUGENHEIM, DE, ELSER, WILHELM, 6103 GRIESHEIM, DE, GOELDNER, ERNST., 7940 RIEDLINGEN, DE, ROSSBERG, PETER
Format Patent
LanguageGerman
Published 01.07.1993
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Summary:The invention relates to a process for the heat-sealing of a plastic substrate against a metal substrate by means of a heat-sealable coating composition which comprises a film-forming dispersion built up from at least two different polymer types A and X, each having different adhesive properties, in an organic solvent system L, with the proviso that polymer type A is free from acid groups and polymer type X has a maximum acid number of 120 mg of KOH per gram of polymer, that the dispersion, in addition to the two polymer types A and X, contains a polymer built up from components which correspond to the two polymer types, and that additional primers for the substrates to be coated are not used during the heat-sealing.
Bibliography:Application Number: DE19914141692