Cellulose particulate material
AssigneeCellucomp Limited
InventorsDavid Hepworth, Eric Whale
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Abstract
The invention relates to plant-derived cellulose-containing particles useful as strengthening agents in water based systems and to a process for preparing cellulose-containing particles from plant material, which process involves treating said plant material with a peroxide reagent. The process can be controlled to produce cellulose-containing particle having a viscosity up to about 2500 cps.
Claims19
A process for preparing cellulose-containing particulate material which has a viscosity at a concentration of 1 dry wt % in water of less than 2500 cps, the process comprising the steps of:
- contacting herbaceous plant material with a peroxide reagent and water;
- (ii) heating the mixture from (i) to a temperature of from 30 to 110° C. and maintaining said mixture at a temperature of from 30 to 110° C. until the pH of the mixture has dropped by at least 2 pH units;
- (iii) isolating the cellulose-containing particles;
- and
- (iv) reducing the water content of the product of step (iii).
A composition comprising less than about 10 wt % plant-derived cellulose particulate material, wherein the plant-derived cellulose particulate material comprises less than 30 wt % extractable glucose;
- and extractable xylose in an amount of at least 3% of the amount of extractable xylose in the starting plant material.
Paper comprising less than about 40 wt % plant-derived cellulose particulate material, wherein the plant-derived cellulose particulate material comprises less than 30 wt % extractable glucose;
- and extractable xylose in an amount of at least 3% of the amount of extractable xylose in the starting plant material.
Dependencies are inferred from the claim text.