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US 12,416,105 B2Granted
Nonwoven fabric suitable as a crop cover
AssigneeMagnera Corporation
InventorMauricio Alonso Ruiz Morales
Life of this patent
Estimating the term…
Abstract
Non woven fabrics including at least one nonwoven layer comprising a plurality of fibers comprising a polymeric material having a melt flow rate (MFR) of less than about 40 g/10 min according to ASTM D1238 (2.16 kg at 230° C.) are provided. The plurality of fibers includes (i) one or more ultraviolet radiation protective agents (UVPA), and (ii) one or more inorganic pigments comprising an inert coating thereon.
Claims20
A nonwoven fabric, comprising:
- at least one nonwoven layer comprising a plurality of fibers comprising a polymeric material having a melt flow rate (MFR) of less than about 40 g/10 min according to ASTM D1238 (2.16 kg at 230° C.);
- the plurality of fibers includes (i) one or more ultraviolet radiation protective agents (UVPA), and (ii) one or more inorganic pigments comprising an inert coating thereon, and wherein the polymeric material comprises a synthetic polymer or blend of two or more synthetic polymers, and wherein the plurality of fibers includes from 0.8% to 20% by weight of the one or more UVPAs;
- the one or more UVPAs is at least one hindered amine light stabilizer (HALS) selected from a ‘N—H’-HALS, a ‘N—R’-HALS, a ‘N—OR’-HALS, or any combination thereof;
- wherein ‘N’ is a nitrogen atom, ‘H’ is a hydrogen atom, and ‘R’ comprises a saturated aliphatic radical, an unsaturated aliphatic radical, a saturated aromatic radical, or an unsaturated aromatic radical.
1 more element
A method of enhancing crop growth, comprising:
- covering a crop planting site with a nonwoven fabric comprising at least one nonwoven layer comprising a plurality of fibers comprising a polymeric material having a melt flow rate (MFR) of less than about 40 g/10 min according to ASTM D1238 (2.16 kg at 230° C.);
- wherein the plurality of fibers includes (i) one or more ultraviolet radiation protective agents (UVPA), and (ii) one or more inorganic pigments comprising an inert coating thereon, and wherein the polymeric material comprises a synthetic polymer or blend of two or more synthetic polymers, and wherein the plurality of fiber include 0.8% to 20% by weight of the one or more UVPAs;
- the one or more UVPAs is at least one hindered amine light stabilizer (HALS), such as a ‘N—H’-HALS, a ‘N—R’-HALS, a ‘N—OR’-HALS, or any combination thereof;
- wherein ‘N’ is a nitrogen atom, ‘H’ is a hydrogen atom, and ‘R’ comprises a saturated aliphatic radical, an unsaturated aliphatic radical, a saturated aromatic radical, or an unsaturated aromatic radical;
- and
- wherein the crop planting site comprises one or more crops planted thereon.
3 more elements
Dependencies are inferred from the claim text.