Hydroxyethylpyrrolidone ethacrylate/glycidyl ethacrylate copolymers
US11912831B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Apr 24, 2018 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Jun 21, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This application provides reactive, flexible, water-resistant hydroxyethylpyrrolidone methacrylate/glycidyl methacrylate copolymers having the structure: wherein a and b are integers, the sum of which less than 100, covalently linked to active agents that are useful in a wide variety of compositions. The present application also discloses hydroxyethylpyrrolidonemethacrylate/glycidyl methacrylate copolymer convently linked to one or more surface active moiety having a structure: wherein a, b, and c are integers, the sum of which equals 100, and M is a surface-active moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.