ANTIMICROBIAL/ANTIVIRAL PLASTICS AND MOLDED PRODUCTS
A polymer composition for molded products having antimicrobial and/or antiviral properties comprising from 50 wt. % to 99.9 wt. % of a polymer, from 0.01 wt % to 10 wt % zinc, optionally from a zinc compound, less than 1 wt % of a phosphorus compound, and from 0 wt % to 20 wt % molding additives, wherein a molded product formed from the polymer composition demonstrates a Staphylococcus aureus log reduction greater than 1.0, as determined via ISO 22196:2011.
1 . A polymer composition for molded products having antimicrobial and/or antiviral properties comprising:
from 50 wt. % to 99.9 wt. % of a polymer,
from 0.01 wt % to 10 wt % zinc, optionally from a zinc compound,
less than 1 wt % of a phosphorus compound, and
from 0 wt % to 20 wt % molding additives,
wherein a molded product formed from the polymer composition demonstrates a Staphylococcus aureus log reduction greater than 1.0, as determined via ISO 22196:2011.
2 . The polymer composition of claim 1 , wherein a molded product formed from the polymer composition demonstrates an Escherichia coli log reduction greater than 1.0, as determined via ISO 22196:2011.
3 . The polymer composition of claim 1 , wherein a molded product formed from the polymer composition demonstrates a Klebsiella pneumonia log reduction greater than 1.0, as determined via ISO 22196:2011.
4 . The polymer composition of claim 1 , wherein a molded product formed from the polymer composition demonstrates a tensile modulus greater than 2500 MPa and/or a Charpy un-notched impact energy loss greater than 70 kJ/m 2 , at 23° C.
5 . The polymer composition of claim 1 , wherein the polymer is hydrophilic and/or hygroscopic and is capable of absorbing greater than 1.5 wt % water, based on the total weight of the polymer.
6 . The polymer composition of claim 1 , wherein the composition comprises from 1000 ppm to 7000 wppm zinc.
7 . The polymer composition of claim 1 , wherein the composition comprises from 2 wt % to 20 wt % of impact modifier.
8 . The polymer composition of claim 1 , wherein the composition comprises from 2 wt % to 20 wt % flame retardant.
9 . The polymer composition of claim 1 , wherein the composition comprises from 0.1 to 5 wt % heat stabilizer and/or from 0.05 wt % to 3 wt % melt stabilizer.
10 . The polymer composition of claim 1 , wherein the composition comprises PA-6,6 and PA-6.
11 . The polymer composition of claim 1 , wherein the composition comprises impact modifier and heat stabilizer and wherein the weight ratio of impact modifier to heat stabilizer ranges from 0.5 to 23.
12 . A molded product having antimicrobial and/or antiviral properties, comprising:
from 50 wt. % to 99.9 wt. % of a polymer,
from 0.01 wt % to 10 wt % zinc, optionally from a zinc compound,
less than 1 wt % of a phosphorus compound, and
from 0 wt % to 20 wt % molding additives,
wherein a molded product formed from the polymer composition demonstrates a Klebsiella pneumonia log reduction greater than 1.0, as determined via ISO 22196:2011.
13 . The molded product of claim 12 , wherein the molded product demonstrates a tensile modulus greater than 2500 MPa and/or a Charpy un-notched impact energy loss greater than 70 kJ/m 2 , at 23° C.
14 . The molded product of claim 12 , wherein the polymer is hydrophilic and/or hygroscopic is capable of absorbing greater than 1.5 wt % water, based on the total weight of the polymer.
15 . The molded product of claim 12 , wherein the composition comprises from 1000 ppm to 7000 wppm zinc.
16 . The molded product of claim 12 , wherein the molded product has a zinc retention rate greater than 65%.
17 . The molded product of claim 12 , wherein the molded product is a cable tie.
18 . The molded product of claim 12 , wherein the molded product is medical equipment.
19 . The molded product of claim 18 , wherein the medical equipment is reusable.
20 . The molded product of claim 12 , wherein the zinc compound comprises zinc oxide, zinc stearate, zinc ammonium adipate, zinc acetate, or zinc pyrithione, or combinations thereof.