Drug – bio-affecting and body treating compositions – Identification or warning feature – Taste or smell or chemical irritation to the eye – nose – or...
Patent
1984-05-07
1985-01-29
Thomas, Alexander S.
Drug, bio-affecting and body treating compositions
Identification or warning feature
Taste or smell or chemical irritation to the eye, nose, or...
351160H, 428 36, 4284231, 428343, 424 28, B32B 108, A61J 306, A61J 300
Patent
active
044965354
ABSTRACT:
Shaped three-dimensional structures formed of polyurethane polyene compositions obtained by reacting from about 10 to about 50 parts by weight of a polyene in the presence of about 100 parts by weight of a hydrophilic polyurethane resin. The resulting products will swell and increase in weight upon immersion in water and are permeable to gases, moisture vapor, ions, and other low molecular weight species. The hydrophilic polyurethane polyene compositions may be molded to form shaped products that are dimensionally stable after repeated exposure to boiling water and exhibit memory.
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Gould Francis E.
Johnston Christian W.
Mueller George F.
Thomas Alexander S.
Tyndale Plains-Hunter Ltd.
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