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US 12,692,334 B2Granted
Copolymerized superabsorbent polymers
AssigneeKimberly-Clark Worldwide, Inc.
InventorsKaiyuan Yang, Xuedong Song
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Abstract
Described herein are novel super absorbent materials. The super absorbent materials are copolymerized with strong or super strong ionizable monomers and bulky counter ions or select metal salts. The copolymer-based super absorbent materials have significantly improved absorbance properties. The compositions and methods described herein are useful in a variety of absorbent products.
Claims10
A superabsorbent polymer comprising:
- a polymer backbone comprising:
- a strong or super strong ionizable backbone monomer comprising:
- an anion of a strong organic acid;
- and
- a super ionizable counter ion;
- a neutralized backbone monomer;
- and
- an un-neutralized backbone monomer;
- and
- optionally a crosslinker;
- wherein the polymer backbone lacks structured ordering of the strong or super strong ionizable backbone monomer, the neutralized backbone monomer, and the un-neutralized backbone monomer.
8 more elements
Dependencies are inferred from the claim text.