Modified resorcinol resins and applications thereof
US7074861B2 · kind B2 · utility
9Cited by
15References
55Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2003 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Jul 19, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G8/30
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A modified resorcinol resin is prepared by reacting a phenolic compound (e.g., resorcinol) with an olefinically unsaturated compound (e.g., styrene) and two types of aldehyde: a formaldehyde and an alkyl aldehyde (e.g., butyraldehyde). The reaction is typically carried out in the presence of an acid catalyst. The resulting resin has a lower softening point and can be used as a methylene acceptor compound in a vulcanizable rubber composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.