Also known as PU
class=skin-invert-image|thumb|right|Polyurethane synthesis: the urethane groups −NH−(C=O)−O− link the molecular units, resulting in a polymer consisting of an alternating chain of two monomers. thumb|A kitchen sponge made of polyurethane foam
via PubMed
via Wikidata · CC0
via Wikidata sitelinks · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).