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US 12,312,567 B2Granted
Particulate laundry scent additive comprising a polyethylene glycol/ethoxylated alcohol polymer composition
AssigneeThe Procter & Gamble Company
InventorJaden Scott Zerhusen
Life of this patent
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Abstract
A composition including a plurality of particles, each of the particles including: about 40% to about 90% by weight of the particles water soluble polymer; about 1% to about 40% by weight of the particles of a salt hydrate; and about 0.1% to about 20% by weight of the particles perfume; wherein the perfume is dispersed in a matrix of the water soluble polymer and the salt hydrate. A process for forming particles that includes using an anhydrous salt to manage water.
Claims19
A composition comprising a plurality of particles, each of said particles comprising:
- A) from about 40% to about 90% by weight of said particles of a water soluble polymer composition, wherein;
- i) the water soluble polymer composition comprises a mixture of at least two components;
- ii) the first component comprises a first molecular weight and the second component comprises a second molecular weight;
- iii) the second molecular weight is different than the first molecular weight, and
- iv) the first component is a polyethylene glycol and the second component is a polyethylene glycol fatty alcohol ether having a formula of HO—(C2H4O)s—(CH2)t—CH3, wherein s is from about 30 to about 250 and t is from about 10 to about 30;
- B) about 1% to about 40% by weight of said particles of a salt hydrate;
- and
- C) about 0.1% to about 20% by weight of said particles of perfume;
- wherein said perfume is dispersed in a matrix of said water soluble polymer and said salt hydrate.
6 more elements
A process for forming particles comprising the steps of:
- 1) providing a melt composition comprising:
- A) from about 40% to about 90% by weight of said particles of a water soluble polymer composition, wherein;
- i) the water soluble polymer composition comprises a mixture of at least two components;
- ii) the first component comprises a first molecular weight and the second component comprises a second molecular weight;
- iii) the second molecular weight is different than the first molecular weight, and
- iv) the first component is a polyethylene glycol and the second component is a polyethylene glycol fatty alcohol ether having a formula of HO—(C2H4O)s—(CH2)t—CH3, wherein s is from about 30 to about 250 and t is from about 10 to about 30;
- B) about 1% to about 20% by weight of said particles of perfume;
- and
- C) about 1% to about 40% by weight water;
- 2) mixing an anhydrous salt with said melt composition or a component thereof and hydrating said anhydrous salt to form a salt hydrate, wherein said salt hydrate has an onset of melt;
- 3) providing a distributor having one or more apertures;
- 4) passing a mixture comprising said water soluble polymer composition, said perfume, and said salt hydrate through said one or more apertures and depositing said mixture on a moving conveyor beneath said one or more apertures, wherein said mixture has a temperature less than said salt hydrate onset of melt;
- and solidifying said mixture;
- wherein said mixture is deposited on said moving conveyor as an extrudate and said extrudate is cut to form said particles or said mixture is passed though said one or more apertures to form droplets on said moving conveyor and said droplets are solidified to form said particles.
11 more elements
Dependencies are inferred from the claim text.