Surface coatings of the polyurethane type with good resistance to weathering have been developed from diisocyanates with partially benzoylated wattle tannins as hydroxyl source.\*
Tannin/Polyurethane adhesives for bonding aluminum
โ Scribed by A. Pizzi
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- English
- Weight
- 131 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
โฆ Synopsis
Tannin/ Polyurethane Adhesives for Bonding Aluminum
Tannin-based adhesives for wood have already been reported by different author^'^^^^^^. These tannin-based adhesives behave similarly to synthetic phenol/formaldehyde or phenol/resorcinol/ formaldehyde resins. This similarity in behaviour could be extended to the preparation of phenolic-modified urethane adhesives for metal bonding. A tannin-based adhesive could be used as the
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