| http://www.w3.org/ns/prov#value | - The hydrophobic layer contains an acid releasing agent as described above and may contain microcrystalline wax, paraffin wax, synthetic wax, or a polymer such as atactic polypropylene, polyolefin, or polyester, or polymer blends, multicomponent polymers such as copolymers or terpolymers, or polymer alloys thereof.
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