Polyethylene glycol particles including bacterial endospores
AssigneeThe Procter & Gamble Company
InventorsSamuel Kimani Njoroge, Julie Marie Porter, Neil Joseph Lant
Life of this patent
Estimating the term…
Abstract
A composition including a plurality of particles, wherein the particles comprise: at least 40% by weight of the particles of a non-germinant carrier; and from about 0.0001% to about 5% by weight of the particles of a bacterial composition including bacterial endospores; and wherein each of the particles has a mass between about 1 mg to about 5000 mg, preferably between about 5 mg and about 200 mg.
Claims14
A composition comprising a plurality of particles, wherein said particles comprise:
- a non-germinant carrier comprising at least about 40% by weight of the particles of polyethylene glycol having a weight average molecular weight from about 2000 to about 13000;
- and
- from about 0.0001% to about 5% by weight of said particles of a bacterial composition comprising bacterial endospores,
- wherein the non-germinant carrier and the bacterial composition are substantially homogeneously mixed with one another;
- and
- wherein each of said particles has a mass between about 5 mg and about 200 mg.
A process for forming particles comprising the steps of:
- providing a precursor material;
- providing a distributor having a plurality of apertures;
- passing said precursor material through said apertures;
- providing a moving conveyor beneath said distributor;
- depositing said precursor material onto said moving conveyor;
- and
- cooling said precursor material to form a plurality of particles;
- wherein said precursor material comprises polyethylene glycol, wherein said polyethylene glycol has a weight average molecular weight from about 2000 to about 13000;
- wherein said precursor material comprises from about 0.0001% to about 5% by weight of said precursor material of a bacterial composition comprising bacterial endospores;
- and
- wherein said precursor material is provided at a temperature less than about 70° C.
A composition comprising a plurality of particles, wherein said particles comprise:
- about 40% to about 99% by weight of the composition of polyethylene glycol having a weight average molecular weight from 2000 to about 13000;
- and
- from about 0.0001% to about 5% by weight of said particles of a bacterial composition comprising bacterial endospores;
- wherein the polyethylene glycol and the bacterial composition are substantially homogeneously mixed with one another;
- and
- wherein the particles have a size such that said particles will pass through a sieve with an opening size of 22.6 mm.
Dependencies are inferred from the claim text.