| http://www.w3.org/ns/prov#value | - These polymers include polyurethanes, silicones, poly(meth)acrylates, polyesters, polyalkylene oxides such as polyethylene oxide, polyvinyl alcohols, polyethylene glycols and polyvinyl pyrrolidone; hydrogels such as those formed from crosslinked polyvinyl pyrrolidone and polyesters could also be used.
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