Polyethylene glycol based oligomers for coating nanoparticles, nanoparticles coated therewith, and related methods
US9150748B1 · kind B1 · utility
2Cited by
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11Claims
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Key dates
| Filing date | Feb 21, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Sep 29, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2261/128
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
In a composition aspect of the invention, a nanoparticle coating comprises repeating polyacrylic acid monomers covalently bound together to form an aliphatic chain having a plurality of carboxylic acid functional groups and modified carboxylic acid functional groups extending therefrom. A first portion of the modified carboxylic acid functional groups are modified by a PEG oligomer having a terminal methoxy functional group and a second portion of the modified carboxylic acid functional groups are modified by a PEG oligomer having at least one terminal sulfur moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.