Patent · US Expired

Chemical compounds

US5574097A · kind A · utility

7Cited by

2References

21Claims

0Family size

Assignee

NYCOMED IMAGING AS · NO

Inventors

Jo Klaveness · Oslo, NO
Keith Redford · Hagan, NO
Jan Solberg · Oslo, NO
Per Strande · Oslo, NO

Key dates

Filing date	Jan 10, 1995
Grant date	Nov 12, 1996
Priority date	—
Expiry date	Jan 10, 2015

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K49/223
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to non-crosslinked non-polypeptide polymers containing biodegradable lipophilic side chains incorporating methylene diester units of the formula --[--CO--O--C(R.sup.1 R.sup.2)--O--CO--]--, where R.sup.1 and R.sup.2 each represents a hydrogen atom or a carbon-attached monovalent organic group or R.sup.1 and R.sup.2 together form a carbon-attached divalent organic group. The lipophilic moieties are biodegradatively cleavable to yield a water-soluble polymer.

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