Method for compression molding articles from lignocellulosic materials
US5002713A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Dec 22, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/7664
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Flakeboard or particle board panels and other composite articles made from wood flakes or other particulate lignocellulosic materials having a relatively high internal bond and improved resistance to moisture are made from flakes or particles which have a moisture content of at least 15%. A catalyst capable of accelerating the reaction between the flakes or particles, the binder and water is applied to the flakes or particles prior to the addition of a moisture-tolerant particle board binder, such as an organic polyisocyanate. A mat of the resulting furnish is compression shaped under pressure and at a temperature less than 250.degree. F. for a time period sufficient to form a composite article of the desired shape and/or dimensions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.