Patent ID: 9683070
Date: 2017-06-20
CPC Classifications: A61L,C08F

Claim:
1. A crosslinked superabsorbent polymer material comprising: a proteinaceous plant-based natural polymer substrate comprising a plurality of protein molecules wherein at least part of the protein molecules are modified at amino groups of the protein molecules with one or more polymerizable group-bearing compounds; and polymers which are different from said protein molecules and which are formed from one or more monomers or co-monomers, wherein said polymers are covalently bonded to said one or more polymerizable group-bearing compounds, and at least some of said plurality of protein molecules are bonded together by said polymers forming a covalently crosslinked proteinaceous plant-based natural polymer substrate, wherein said covalently crosslinked proteinaceous plant-based natural polymer substrate is capable of absorbing and retaining water at 10 to 1000 times a weight of said covalently crosslinked proteinaceous plant-based natural polymer substrate.