Patent · US Active

Block-copolymers for the delivery of active agents

US12018125B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignee

Julius-Maximilians-Universitat Wurzburg · DE

Inventors

Robert Luxenhofer · Würzburg, DE
Michael Lübtow · Würzburg, DE

Key dates

Filing date	Jun 19, 2018
Grant date	Jun 25, 2024
Priority date	—
Expiry date	Apr 5, 2041

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K31/337
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Provided is an (A)-(B)-(A) triblock copolymer comprising two hydrophilic polymer blocks (A) as further defined herein, and a polymer block (B), said polymer block (B) comprising at least one type of repeating unit of the following formula (I) wherein R1 is an aliphatic hydrocarbon group which is optionally substituted with one or more of —OR5, —SR5, —NR6R7, —(NR6R7R8)+, —CONR6R7, —C(O)OR9 and —C(O)R10, wherein R5 to R10 are independently selected from H, aliphatic and aromatic residues, and wherein R1 is selected such that the polymer block (B) is more hydrophobic than the polymer block (A); and compositions, such as pharmaceutical compositions, formed with the block copolymer.

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