Method of growing plants
AssigneeRockwool A/S
InventorsFrank Hendrikus Peter Janssen, Dorte Bartnik Johansson, Miroslav Nikolic
Life of this patent
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Abstract
A method of growing plants in a coherent growth substrate product can comprise: providing at least one coherent growth substrate product comprising man-made vitreous fibres (MMVF) bonded with a cured aqueous binder composition free of phenol and formaldehyde; positioning one or more seeds, seedlings, cuttings or plants in contact with the growth substrate product; and irrigating the growth substrate product. The aqueous binder composition prior to curing can comprise; a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins; and a component (ii) in form of one or more cross-linkers.
Claims39
A method of growing plants in a coherent growth substrate product, the method comprising:
- providing at least one coherent growth substrate product comprising man-made vitreous fibres (MMVF) bonded with a cured aqueous binder composition free of phenol and formaldehyde;
- positioning one or more seeds, seedlings, cuttings or plants in contact with the growth substrate product;
- and
- irrigating the growth substrate product, wherein the aqueous binder composition prior to curing comprises:
- a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins;
- and
- a component (ii) in form of one or more cross-linkers.
A coherent growth substrate product comprising man-made vitreous fibres (MMVF) bonded with a cured aqueous binder composition free of phenol and formaldehyde, wherein the aqueous binder composition prior to curing comprises:
- a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins,
- a component (ii) in form of one or more cross-linkers.
Use of a coherent growth substrate product in a method for growing plants, said method comprising:
- (i) positioning one or more seeds, seedlings cuttings or plants in contact with the coherent growth substrate product, and
- (ii) irrigating the coherent growth substrate product,
- wherein the coherent growth substrate product comprises man-made vitreous fibres (MMVF) bonded with a cured aqueous binder composition free of phenol and formaldehyde, wherein the aqueous binder composition prior to curing comprises:
- a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins;
- and
- a component (ii) in form of one or more cross-linkers.
A method of making a coherent growth substrate product comprising the steps of:
- (i) providing MMVF;
- (ii) spraying the MMVF with an aqueous binder composition free of phenol and formaldehyde;
- (iii) collecting and consolidating the MMVF;
- and
- (iv) curing the aqueous binder composition,
- wherein the aqueous binder composition prior to curing comprises:
- a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins;
- and
- a component (ii) in form of one or more cross-linkers.
Use of a lignin component in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins, for a method of preparation of a binder composition free of phenol and formaldehyde for a coherent growth substrate product comprising man-made vitreous fibres (MMVF), said method comprising the steps of combining said lignin component with one or more cross-linkers.
Dependencies are inferred from the claim text.