The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2010
Filed:
Jul. 31, 2003
Jeffrey W. Ruberti, Lexington, MA (US);
Gavin J. C. Braithwaite, Cambridge, MA (US);
Jeffrey W. Ruberti, Lexington, MA (US);
Gavin J. C. Braithwaite, Cambridge, MA (US);
Cambridge Polymer Group, Inc., Boston, MA (US);
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.