Patent ID: 9446382
Filing Date: 2016-09-20
CPC Classification: B01J,C08B,C08L

Claim Text:
1. A porous cellulose gel comprising crosslinked spherical crystalline cellulose particles having a solvent contained therein, upon filling the gel in a chromatography column having an inner diameter of 2.2 cm to a height of 17.5±2.5 cm, a linear velocity of water at 20° C. being from 2,400 to 4,500 cm/hour at a pressure of 0.4 MPa, wherein the crosslinked spherical crystalline cellulose particles have a sphericity of from approximately 0.8 to approximately 1.0 and a particle diameter of from 1 to 2,000 μm, wherein the porous cellulose gel has an exclusion limit molecular weight with polyethylene glycol of from 1,000,000 to 5,000,000, and wherein the crosslinked spherical crystalline cellulose particles have a swelling degree of from 5 to 20 mL/g.