Method for manufacturing a laminate consisting of individual layers
AssigneeLTS Lohmann Therapie-Systeme AG
InventorChristian von Falkenhausen
Life of this patent
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Abstract
A process for producing a laminate comprising individual layers, such process including a sequence of operations in which initially a support substrate is provided, to which at least two compositions, each of which is liquid under the processing conditions, are applied as individual layers, one on top of the other. Each composition comprises either one active pharmaceutical or cosmetic substance or one pharmaceutical or cosmetic auxiliary.
Claims20
A process for producing a multilayer laminate suitable for use as a pharmaceutical administration form, said laminate comprising individual layers, said process comprising the following sequence of operations:
- providing a support substrate,
- applying at least one flowable coating composition to said substrate as a first layer, and subsequently, while said first layer is in a flowable state, applying to said first layer at least one further flowable coating composition as a further layer or layers, and
- finally subjecting said layers to a process selected from the group consisting of drying and chemical cross-linking, to solidify the layers;
- wherein at least one of said first layer and said further layer(s) comprises at least one substance selected from the group consisting of active pharmaceutical substances, active cosmetic substances, pharmaceutical auxiliaries and cosmetic auxiliaries, and wherein at least one layer of said multilayer laminate comprises an active substance, and at least one further layer is applied onto said layer.
Dependencies are inferred from the claim text.