Systems and methods for controlling and forming polymer gels
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United States of America Patent
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Jun 29, 2010
Grant Date -
May 13, 2004
app pub date -
Jul 31, 2003
filing date -
Aug 2, 2002
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Abstract
The preferred embodiments of the present invention provide polymer compositions and methods for controlling a property of a resultant gel. A preferred method includes dissolving a vinyl polymer in a first solvent to form a solution; and contacting the vinyl polymer solution in a suitable volume of at least one immersion solvent comprising a second solvent to cause gelation. In preferred embodiments, the invention provides poly(vinyl alcohol) compositions and methods that produce physically crosslinked hydrogels that have tunable physical properties. Also provided are articles of manufacture such as prosthetic intervertebral disks and contact lenses.
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