Composition and method for retention of solvated compounds and ions
US8956541B2 · kind B2 · utility
8Cited by
11References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2013 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Jun 10, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/05
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Storage stable polyhydroxylated aromatic ether adducts of polyalkylene oxide are described. Reactive compositions are formed by combining an ether adduct with an aldehyde, optionally further adding a phenolic-aldehyde prepolymer. The reactive compositions are cured by removing water, by acidification, or both. The cured compositions sorb solvated compounds from environments containing water. The cured compositions are also useful for pre-loading with compounds that are subsequently released at a controlled rate into environments containing water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.