Liquified cellulosic fiber, resin binders and articles manufactured therewith, and method of manufacturing same
US4828643A · kind A · utility
63Cited by
4References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Jan 12, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3196
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of manufacturing a liquified fiber-phenol-formaldehyde resin includes heating a mixture of phenol, formaldehyde, liquified cellulosic fiber and alkali at a temperature of 60.degree. C. to 100.degree. C. and a pH of 8-13. The liquified cellulosic fiber comprises about 5 to about 80 percent of the total weight of phenol, formaldehyde and liquified fiber. Also disclosed are fibrous articles manufactured using this resin as a binder, such as fiberboards, particle board, plywood, oriented strand board, and waferboard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.