Phenol-formaldehyde resole resins, method of manufacture, methods of use, and articles formed therefrom
US7989575B2 · kind B2 · utility
0Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2007 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Oct 7, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G14/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition is disclosed, which comprises a hydroxyaromatic-aldehyde resole resin comprising an aldehyde and a hydroxyaromatic compound, modified with a urea-aldehyde condensate. The hydroxyaromatic-aldehyde resole resin is prepared without ammonia or a primary amine and the composition does not contain a triazone or a substituted triazone compound. The composition has improved premix stability, improved cure efficiency, comparable tensile strength, and lower volatiles than the hydroxyaromatic-aldehyde resole resin unmodified with a urea-aldehyde condensate. Also disclosed are articles prepared therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.