Patent · US Expired

Polyurethane and polyurea biomaterials for use in medical devices

US6149678A · kind A · utility

17Cited by
24References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 17, 1998
Grant dateNov 21, 2000
Priority date
Expiry dateAug 17, 2018

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G18/752
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A medical device comprising a biomaterial formed from a polymer comprising urethane groups, urea groups, or combinations thereof, and sacrificial moieties that preferentially oxidize relative to other moieties in the polymer.

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