Adhesive system containing tannin for binding lignocellulosic materials
US7064175B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Apr 26, 2002 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Nov 20, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/13
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The adhesive system for use in binding lignocellulosic materials into a composite product, the adhesive system consisting essentially of a first part and one of (a) a second part; (b) a third part, and (c) both the second part and the third part; the first part being selected from the group consisting of powdered tannins, powdered modified tannins, and mixtures thereof; the second part being a powdered component reactive with the first part and selected from the group consisting of aldehyde polymers, phenolic resoles, modified phenolic resoles, and mixtures thereof; the third part being a liquid polymeric isocyanate, wherein:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.