United States
US 12,697,601 B2
Water-absorbing resin, absorber, and absorbent article
US 12,697,601 B2 is a granted patent from the United States Patent and Trademark Office (USPTO), dated 2026-08-04. Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD. Its PDF downloads from this page without an account, up to 5 a day.
- Applicant
- SUMITOMO SEIKA CHEMICALS CO., LTD.
- Inventors
- Shota MORISHIMA
- Publication date
- 2026-08-04
- Filing date
- 2023-04-18
- Document type
- B2 Granted patent
- Also written as
- US 12,697,601 B2 · US12697601 · 12697601
Abstract
Provided is a water-absorbing resin with which the enzyme activity of a urease that generates ammonia from urea can be inhibited and a pH increase on the surface of an absorbent article, which causes skin rashes or the like, can be suppressed. This water-absorbing resin has an oxidation-reduction potential of a swollen gel of at least 260 mV, as measured by the following oxidation-reduction potential measuring method. (Oxidation-reduction potential measuring method) 60 mL of ion exchange water having an oxidation-reduction potential of 390±10 mV is added to a beaker.…
The opening of the abstract. The full text is in the PDF.
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Patent office website: United States Patent and Trademark Office (USPTO)
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