Resins of the phenoplast type obtained from phenolic compounds and from macromolecular hardeners bearing aldehyde functions
US9040650B2 · kind B2 · utility
0Cited by
14References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 19, 2010 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Nov 19, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G8/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for preparing a formaldehyde-free phenolic plastic resin, includes a step of preparing a hardener via careful oxidation of a polyol and a step of reacting the hardener with phenolic compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.