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 | , , , |
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Format | Patent |
Language | German |
Published |
01.07.1993
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: DE19914141692 |