Method for the production of cellulosic board materials
US4528309A · kind A · utility
8Cited by
5References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 5, 1983 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Oct 5, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31957
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for producing board materials of cellulose containing components using formaldehyde-based curable glues. By treatment of at least one part of the components at a low moisture content with a formaldehyde absorbing agent the board materials obtained after pressing get a low content of free formaldehyde and very good strength properties. The moisture content of the components at the treatment is lower than 12 percent by weight. the formaldehyde absorbing agent is preferably urea.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.