Patent · US Expired

Mixtures of polymers for medical use

US4433072A · kind A · utility

280Cited by
7References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 29, 1983
Grant dateFeb 21, 1984
Priority date—
Expiry dateApr 29, 2003

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L75/08
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

Polymer compositions of a mixture of vinyl chloride polymer and polyurethane with tertiary amine and/or ammonium groups and heparin.

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