Resol beads, methods of making them, and methods of using them
US8557381B2 · kind B2 · utility
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89References
15Claims
0Family size
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Key dates
| Filing date | Jul 3, 2012 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Jul 3, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Resol beads are disclosed that are prepared in high yield by reaction of a phenol with an aldehyde, with a base as catalyst, a colloidal stabilizer, and optionally a surfactant. The resol beads have a variety of uses, and may be thermally treated and carbonized to obtain activated carbon beads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.