Patent · US Active

Nanoparticles

US11957793B2 · kind B2 · utility

0Cited by

3References

17Claims

0Family size

Assignee

SINTEFF TTO AS · NO

Inventors

Ruth Schmid · Trondheim, NO
Peter Molesworth · Trondheim, NO
Yrr Mørch · Trondheim, NO
Einar Sulheim · Trondheim, NO
Heidi Johnsen · Trondheim, NO

Key dates

Filing date	Aug 23, 2019
Grant date	Apr 16, 2024
Priority date	—
Expiry date	Jan 12, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB82Y5/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The present invention provides a nanoparticle comprising a poly(alkyl cyanoacrylate) homopolymer, or copolymer, at least one active agent and an anionic and radical inhibitor, wherein the anionic and radical inhibitor is a compound having the following formula: wherein R1 is H; and R3, R4, R5, R6 and R7 are independently selected from the group consisting of —H, —OH, C1-C6 alkoxide, C1-C6 alkyl, halides, carboxylic acid, ketone or aldehyde; wherein the anionic and radical inhibitor is present in an amount of 0.001 to 15 wt %, as well as a process suitable for manufacture of the nanoparticle.

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