Process for the manufacture of a mineral wool plant growth substrate
AssigneeRockwool International A/S
InventorsErling Lennart Hansen, Jacob Frank De Groot
Life of this patent
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Abstract
The present invention relates to a process for the manufacture of mineral wool plant growth substrate having a coherent hydrophilic matrix of mineral wool fibres connected by cured binder, comprising the steps of: providing mineral wool fibres; applying to the mineral wool fibres as a binder a phenol-formaldehyde resin and a furan resin; forming a matrix of the mineral wool fibres; and curing the binder and to the obtainable mineral wool plant growth substrate.
Claims13
A process for manufacturing a mineral wool plant growth substrate having a coherent hydrophilic matrix of mineral wool fibres connected by cured binder, said method comprising the steps of:
- i. providing mineral wool fibres;
- ii. applying to the mineral wool fibres as a binder a phenol-formaldehyde resin and a furan resin, wherein the binder does not contain a wetting agent;
- iii. forming a matrix of the mineral wool fibres;
- and
- iv. curing the binder.
Dependencies are inferred from the claim text.