Moisture indicating hydrophilic polyurethane
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United States of America Patent
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Nov 29, 2016
Grant Date -
Oct 1, 2015
app pub date -
Nov 12, 2013
filing date -
Nov 14, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present invention relates at least in part to devices which are capable of indicating the presence of moisture. Embodiments of the present invention involve the provision of a solid dispersion of a color-forming material in a hydrophilic polyurethane material. In particular, although not exclusively, the present invention relates to devices comprising foam, e.g., hydrophilic polyurethane foam and a color former. Also included in the embodiments of the present invention are methods comprising the use of the devices, and other subject matter.
First Claim
Family
International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- B05D:PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- A61F:FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- A61B:DIAGNOSIS; SURGERY; IDENTIFICATION
- A61L:METHODS OR APPARATUS FOR STERILISING MATERIALS OR ....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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