IP Library › Patent Application 14327672
Patent Application
App. No. 14/327,672

Microcrystalline Cellulose Compositions

Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US None
App. No.
14/327,672
Abstract

Ultra-fine microcrystalline cellulose compositions are disclosed which comprise co-attrited microcrystalline cellulose and a hydrocolloid. The compositions have a mean particle size of less than 10 microns. The compositions are prepared by subjecting a high solids mixture of microcrystalline cellulose and a hydrocolloid to high shear forces in the presence of an anti slip agent preferably an aqueoussolution of an inorganic salt. The compositions are especially useful in food, pharmaceutical and cosmetic and industrial applications.

Claims (22)

1 . A composition comprising

(a) at least 70% by weight microcrystalline cellulose, and

(b) a hydrocolloid

wherein the composition has a mean particle size of less than about 10 microns

2 . A composition as claimed in claim 1 , wherein

(i) when the hydrocolloid is a carrageenan at least about 50% of the particles have a particle size less than about 3.5 microns,

(ii) when the hydrocolloid is a hydrocolloid other than a carrageenan at least about 30% of the particles have a particle size less than about 3.5 microns, and

(iii) when the hydrocolloid is a combination of a carrageenan and another hydrocolloid at least about 20% of the particles have a particle size less than about 3.5 microns.

3 . A composition as claimed in claim 1 having a Ca++ content of from 0.18 to 3.5% by weight based on the total weight of the composition.

4 . A composition as claimed in claim 1 wherein the amount of hydrocolloid is equal to from 15% to 30% by weight based on the total weight of hydrocolloid and microcrystalline cellulose.

5 . A composition as claimed in claim 1 wherein the hydrocolloid is a carrageenan.

6 . A composition as claimed in claim 1 wherein the hydrocolloid is an alginate.

7 . A composition as claimed in claim 1 wherein the amount of microcrystalline cellulose is equal to from 70% to 85% by weight based on the total weight of hydrocolloid and microcrystalline cellulose.

8 . A composition as claimed in claim 1 further comprising a water soluble inorganic salt.

9 - 11 . (canceled)

12 . A composition as claimed in claim 1 , wherein the microcrystalline cellulose and the hydrocolloid are coattrited.

13 - 26 . (canceled)

27 . A food product comprising the composition of claim 1 .

28 . A pharmaceutical composition comprising the composition of claim 1 .

29 . A cosmetic composition comprising the composition of claim 1 .

30 . A pharmaceutical dosage form comprising the composition of claim 1 .

31 . An industrial composition comprising the composition of claim 1 .