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US4231802A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of mixing difficulty dispersible material, e.g., fat or wax, in a gum-microcrystalline cellulose matrix, and powder product

Assignee: FMC Corp
•
Filing: 1978-07-10
•
Granted: 1980-11-04
•
Expires: 1998-07-10
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Abstract

Abstract Oleaginous and other materials that are difficult to form into aqueous dispersions are rendered easily dispersible in cold water by impregnating particles with them which comprise from about 70 to 99 parts of disintegrated beta-1,4 glucan and from about 1 to 30 parts of water-soluble polymer intimately associated therewith, and especially where the particles comprise from about 85 to 95 parts of disintegrated beta-1,4 glucan and from about 5 to 15 parts of sodium carboxymethyl cellulose.

Inventors

  • 👤 Emanuel J. McGinley
  • 👤 Joseph M. Zuban

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 10:43
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/05; A; A21; A21D; A21D2/00; A21D2/08; A21D2/14; A21D2/16; A21D2/18; C08J2391/00

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 164 words
A method of preparing powders and granules capable of forming in cold water with only mild agitation, a stabilized micro-dispersion of a difficult to disperse material; said method comprising mixing the difficult to disperse material in liquid form with a matrix comprising by weight from about 70 to about 99 parts of disintegrated beta-1,4 glucan and from about 1 to about 30 parts of a water soluble polymer selected from sodium carboxymethyl cellulose, xanthan gum, sodium alginate, carrageenan, tragacanth gum, karaya gum and pregelatinized waxy maize starch intimately associated with the beta-1,4 glucan, the ratio by weight between the difficult to disperse material and the matrix being not greater than about 1:4, adding sufficient water to swell the matrix and form a paste, said water amounting to from about 10% to about 85% of the weight of the paste, mixing the paste to distribute said difficult to disperse material therethroughout, and continuing to mix while heating the paste to drive off the added water.
Claim 2
Independent Claim 164 words
A method of preparing powders and granules capable of forming in cold water with only mild agitation, a stabilized micro-dispersion of a difficult to disperse material; said method comprising mixing the difficult to disperse material in liquid form with a matrix comprising by weight from about 70 to about 99 parts of disintegrated beta-1,4 glucan and from about 1 to about 30 parts of a water soluble polymer selected from sodium carboxymethyl cellulose, xanthan gum, sodium alginate, carrageenan, tragacanth gum, karaya gum and pregelatinized waxy maize starch intimately associated with the beta-1,4 glucan, the ratio by weight between the difficult to disperse material and the matrix being not greater than about 1:4, adding sufficient water to swell the matrix and form a paste, said water amounting to from about 10% to about 85% of the weight of the paste, mixing the paste to distribute said difficult to disperse material therethroughout, and continuing to mix while heating the paste to drive off the added water.
Claim 3
Dependent Claim 15 words
The method set forth in claim 1 wherein its water-soluble polymer is sodium carboxymethyl cellulose.
Claim 4
Independent Claim 173 words
A method of preparing powders and granules capable of forming in cold water with only mild agitation, a stabilized micro-dispersion of a difficult to disperse material; said method comprising mixing water with a matrix comprising by weight from about 70 to 99 parts of disintegrated beta-1,4 glucan substance and from about 1 to about 30 parts of a water-soluble polymer selected from sodium carboxymethyl cellulose, xanthan gum, sodium alginate, carrageenan, tragacanth gum, karaya gum and pregelatinized waxy maize starch intimately associated with the disintegrated beta-1,4 glucan, said water being used in sufficient quantity to swell the matrix and form a paste, said water amounting to about 10% to about 85% of the weight of the paste, mixing the paste with a difficult to disperse material in liquid form so that said difficult to disperse material is distributed throughout the paste, the ratio by weight between the difficult to disperse material and the matrix being not greater than about 1:4, and heating the paste while continuing the mixing to drive off the added water.
Claim 5
Independent Claim 173 words
A method of preparing powders and granules capable of forming in cold water with only mild agitation, a stabilized micro-dispersion of a difficult to disperse material; said method comprising mixing water with a matrix comprising by weight from about 70 to 99 parts of disintegrated beta-1,4 glucan substance and from about 1 to about 30 parts of a water-soluble polymer selected from sodium carboxymethyl cellulose, xanthan gum, sodium alginate, carrageenan, tragacanth gum, karaya gum and pregelatinized waxy maize starch intimately associated with the disintegrated beta-1,4 glucan, said water being used in sufficient quantity to swell the matrix and form a paste, said water amounting to about 10% to about 85% of the weight of the paste, mixing the paste with a difficult to disperse material in liquid form so that said difficult to disperse material is distributed throughout the paste, the ratio by weight between the difficult to disperse material and the matrix being not greater than about 1:4, and heating the paste while continuing the mixing to drive off the added water.
Claim 6
Dependent Claim 15 words
The method set forth in claim 3 wherein the water-soluble polymer is sodium carboxymethyl cellulose.
Claim 7
Dependent Claim 14 words
A particle made by the method of any of claims 1, 3 or 4.

References Cited (Backward Citations)

US2609303A Cited
US3278519A Cited
US3258354A Cited
US3357845A Cited
US3442676A Cited
US3440065A Cited
US3539365A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-11-04 1984-05-05 1984-11-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-11-04 1988-05-05 1988-11-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-11-04 1992-05-05 1992-11-04 $7700.00 Window Closed / Lapsed

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