Stable compositions

Details Stable compositions Stable compositions

1988-09-21

1991-03-05

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 54, 524732, 524733, 524734, 527300, 527311, 527312, 527313, C08L 300, C08L 100, C08K 507

Patent

active

049978675

ABSTRACT:
A method of stabilizing an aqueous dispersion of water-absorbent particles and at least one matrix-forming hydrophilic thickening agent comprises the steps of evacuating gas from said dispersion and subjecting the latter to compression by means of a relative pressure sufficient to irreversibly transform the dispersion into a stable particle-matrix system. A method of preparing a stable semi-solid preparation of dry, preferably bead-shaped water-absorbent particles comprises forming a homogenous dispersion comprising from 30 to 70% by weight of said beads, from 0.1% by weight of at least one hydrophilic thickening agent, capable of forming a matrix for said beads, and from 20 to 55% by weight of water, and stabilizing the dispersion formed as above. The water-absorbent particles may consist of cross-linked carbohydrates or polyacrylamide or derivatives thereof. The stable preparation may advantageously be packed in aerosol type containers and be used for the treatment of wounds and skin.

REFERENCES:
patent: 4410571 (1983-10-01), Korpman
patent: 4587308 (1986-05-01), Makita et al.

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