Conteneur Oxo-biodegradable Antimicrobien

Abstract

An oxo-biodegradable antimicrobial receptacle for organic waste or waste from care activities which comprises a layer comprising low density polyethylene, an oxo-biodegradation additive at between 0.2 and 2.2% by weight and an antimicrobial additive at between 0.2 and 2.2% by weight, distributed in the polyethylene. It affords a period of preservation, in the dark, of at least 3 years, preferably 5 years, at a temperature not exceeding 30° C. The preservation is estimated by the carbonyl optical density resulting from the degradation of the polyethylene, measured according to the standard ISO 10640-2011 by FT-IR spectroscopy. The oxo-degradation is inhibited by the absence of light, and a period of degradation estimated by the carbonyl optical density of less than 2 years. The oxo-degradation additive does not promote Clostridium difficile spores.

Claims

1. Oxo-biodegradable antimicrobial receptacle for organic waste or waste from care activities, comprising a layer comprising low density polyethylene, an oxo-biodegradation additive at between 0,2 and 2.2% by weight and an antimicrobial additive at between 0.2 and 2.2% by weight, distributed in the polyethylene, affording a period of preservation, in the dark, of at least 3 years, at a temperature not exceeding 30° C., the preservation being estimated by the carbonyl optical density resulting from the degradation of the polyethylene, measured according to the standard ISO 10640 -2011 by FT-IR spectroscopy, the oxo-degradation being inhibited by the absence of light, and a period of degradation estimated by the carbonyl optical density of less than 2 years, the oxo-degradation additive not promoting Clostridium difficile spores.

2. Receptacle according to claim 1, in which the oxo-biodegradation additive comprises a metal salt comprising manganese, cobalt, iron stearate, or a combination thereof and a temporary antioxidant, active for at least 3 years, in the dark and at a temperature not exceeding 30° C.

3. Receptacle according to claim 1, in which the period of degradation is less than 18 months.

4. Receptacle according to claim 1, in which the antimicrobial additive comprises zinc and a zeolite.

5. Receptacle according to claim 4, in which the antimicrobial additive comprises at least 5% zinc pyrithione.

6. Receptacle according to claim 4, in which the zeolite is charged with a mineral antimicrobial component.

7. Receptacle according to claim 4, in which the zeolite is coated in PE.

8. Receptacle according to claim 4, in which the zeolite have has a particle size of between 0.5 and 1 μm, the layer having a thickness of at least 3 μm.

9. Receptacle according to claim 1, in which the period of preservation, in the dark, estimated by the carbonyl optical density, is at least 5 years.

10. Receptacle according to claim 1, in which the antimicrobial additive is active against Escherichia coil, Salmonella, Listeria, Pseudomonas, Aspergillus Niger, Aspergillus amstelodami, Aspergillus nidulans, Candida albicans, Clostridium difficile, Corynebacterium spp, Corynebacterium minutissimum, Enterobacter gergoviae, Klebsiella pneumoniae, Listeria monocytogenes, Mesophilic aerobes, Methicillin Resistant Staphylococcus aureus (MRSA), Mucor racemosus, M. thermophile, Penicillium chrysogenum, Proteus mirabilis, Proteus vulgaris, Pseudomonas aeruginosa, Pseudomonas cepacia, Pseudomonas putida, Saccharomyces cerevisiae, Salmonella enteritidis, Staphylococcus aureus, Trichophyton mentagrophytes and the spores of Clostridium difficile.

11. Receptacle according to claim 1, in which a plurality of identical receptacles are packaged in an opaque box.

12. Receptacle according to claim 1, in which the oxo-biodegradation additive comprises manganese,

13. Receptacle according to claim 4, in which the antimicrobial additive comprises zinc and heulandites.

14. Receptacle according to claim 6, in which the mineral antimicrobial component is zinc.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0050] A full and enabling disclosure of the subject matter, including the best mode thereof, directed to one of ordinary skill in the art, is set forth more particularly in the remainder of the specification, which makes reference to the appended figures in which:

[0051] FIG. 1 graphically illustrates the effects on carbonyl optical density (1714 cm.sup.−1) over the course of the accelerated thermal ageing test;

[0052] FIG. 2 graphically illustrates the effects on carbonyl optical density (1714 cm.sup.−1) over the course of the accelerated UV ageing test;

[0053] FIG. 3 graphically illustrates the effects on carbonyl optical density (1714 cm.sup.−1) over the course of the successive UV radiation and thermal accelerated ageing tests;

[0054] FIG. 4 graphically illustrates the effects on carbonyl optical density (1714 cm.sup.−1) over the course of the accelerated thermal ageing test with test and control specimens;

[0055] FIG. 5 graphically illustrates the effects on carbonyl optical density (1714 cm.sup.−1) over the course of the accelerated UV ageing test with test and control specimens;

[0056] FIG. 6 graphically illustrates the effects on carbonyl optical density (1714 cm.sup.−1) over the course of the successive UV radiation and thermal accelerated ageing tests with test and control specimens.