Patent ID: 9553319
Date: 2017-01-24
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. A hydrophilic polymer, which has been hydrated to form a hydrated hydrophilic polymer having a water content of at least 65%, wherein water content is defined as [(mass of the hydrated hydrophilic polymer−mass of the dry hydrophilic polymer)/mass of the hydrated hydrophilic polymer]×100, and wherein the polymer has been cured by UV radiation, wherein the hydrophilic polymer is obtainable by the polymerisation of one or more monomers dissolved in water, wherein the one or more monomers comprises a hydrophilic monomer, a hydrophobic monomer, and an ionic component, and wherein the ionic component is present in an amount of at least 20% by weight of the total polymerisation mixture.