Word: methylolurea
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...product developed from research begun by the U.S. Forest Products Laboratory. The impregnating material, called methylolurea, is made principally from two cheap, plentiful chemicals-urea and formaldehyde-which are synthesized from coal, air and water. In the impregnating process, wood is pressed and soaked in a methylolurea solution, which is converted by the wood's acids into hard, insoluble resins. The wood becomes brittle, but this disadvantage can be partly offset by impregnating only the outer part of the wood, leaving a resilient core...
| 1 |