Flexibilized resorcinolic novolak resins and method of making same
US7196156B2 · kind B2 · utility
1Cited by
12References
28Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 12, 2003 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Jan 26, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J161/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A flexibilized resorcinolic novolak resin is prepared by reacting a phenolic compound, such as resorcinol, with an unsaturated dihydroxy, an unsaturated aldehyde, an aliphatic dialdehyde, or a mixture thereof. An aldehyde (different from the unsaturated aldehyde and the aliphatic dialdehyde) is either simultaneously or subsequently added to the reaction mixture. The flexibilized resorcinolic novolak resin can be used in an adhesive composition for enhancing the adhesion between tire cords and rubber for tire applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.