Flexible material including controlled substance release
AssigneeKkoninklijke Philips Electronics N.V.
InventorGeorge Marmarpoulos
Life of this patent
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Abstract
A flexible material allows for the controlled release of a microencapsulated substance. One element of the material is interwoven fibers. A second element is means for passing a current and generating localized heating interspersed among the fibers. A third element is at least one microcapsule, situated on or within the interwoven fibers and means for passing a current, containing a substance and releasing said substance upon rupture due to localized heating generated by selectively heating the means for passing a current. A fourth element is a means for controlling the current passed through the means for passing a current to enable controlled localized heating.
Claims25
A flexible material comprising:
- interwoven fibers;
- means for passing a current and generating localized heating interspersed among the fibers;
- at least one microcapsule, situated on or within the interwoven fibers and means for passing a current, containing a substance and releasing said substance upon rupture due to localized heating generated by selectively heating the means for passing a current;
- and
- means for controlling the current passed through the means for passing a current to enable controlled localized heating.
A flexible material comprising:
- interwoven fibers;
- means for passing a current and generating localized heating interspersed among the fibers;
- at least one substance, situated on or within the fibers and means for passing a current, that vaporizes due to localized heating generated by selectively heating the means for passing a current;
- and
- means for controlling the current passed through the means for generating localized heating.
A method of controllably releasing a substance contained in a flexible material comprising:
- integrating fibers and means for passing a current and generating localized heating interspersed among the fibers;
- forming at least one microcapsule containing a substance;
- incorporating the at least one microcapsule above or within the integrated fibers and means for passing a current;
- selectively heating the at least one microcapsule;
- rupturing the at least one microcapsule;
- and
- releasing said substance.
A method of controllably releasing a substance contained in a flexible material comprising:
- integrating fibers and means for passing a current and generating localized heating interspersed among the fibers;
- forming a substance above or within the interwoven fibers and means for passing a current;
- selectively heating the substance;
- and
- evaporating said substance.
Dependencies are inferred from the claim text.