| http://www.w3.org/ns/prov#value | - us earth; aliphatic polyesters (e.g. polybutylene succinate and poly(butylene succinate-co-adipate, polymers and co-polymers of polylactic acid, low melt temperature polymers such as PEO and copolymers of PEO); various hygroscopic or water absorbing materials or more generally polymers or copolymers or non-polymers with many sites of ???OH groups; other inorganic microwave absorbers including alum
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