Process for making a water-soluble foam component
The present invention relates to a process for preparing a water-soluble foam matrix which is capable of delivering an active ingredient and articles of manufacture comprising said foam matrix, said article comprising: i) a water-soluble polymeric component in the form of a foam matrix; and ii) an a...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
20.11.2003
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| Online Access | Get full text |
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| Summary: | The present invention relates to a process for preparing a water-soluble foam matrix which is capable of delivering an active ingredient and articles of manufacture comprising said foam matrix, said article comprising:
i) a water-soluble polymeric component in the form of a foam matrix; and
ii) an active ingredient component dispersed throughout said matrix;
said process comprising the steps of:
a) admixing a water-soluble polymer and an active ingredient to form a homogeneous admixture, said admixture having a viscosity of at least 150 Pa-sec;
b) introducing a gas or a compound capable of releasing a gas into said admixture to form a foam matrix; and
c) optionally, shaping said matrix to provide a matrix having a shape or a form. |
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