Patent · US Active

Polyurethane-grafted hydrogels

US8497023B2 · kind B2 · utility

17Cited by
167References
46Claims
0Family size

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Key dates

Filing dateAug 5, 2009
Grant dateJul 30, 2013
Priority date
Expiry dateJul 13, 2031

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31583
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

An article comprising two chemically grafted polymer layers comprising a hydrogel layer and an end-functionalized polyurethane layer. The invention also includes methods of making and using the article.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.