Hepmc

Patent metadata

Field	Value
Publication number	US-2016376535-A1
Application number	US-201615259105-A
Country	US
Kind code	A1
Filing date	Sep 8, 2016
Priority date	Nov 6, 2009
Publication date	Dec 29, 2016
Grant date	—

Abstract

The present application relates to high efficiency particles and compositions, such as consumer products, comprising such high efficiency particles as well as processes for making and using such high efficiency particles and compositions comprising such high efficiency particles. Such high efficiency particles and compositions provide enhanced benefit agent delivery to a situs that is treated with such high efficiency particles and compositions.

First claim

What is claimed is:

1 . An encapsulate comprising a core, a shell having an inner and outer surface and a coating, said shell encapsulating said core, said coating coating the outer surface of said shell, said coating comprising a cationic polymer and an anionic polymer.

2 . The encapsulate of claim 1 , wherein:
a) said cationic polymer comprising a moiety selected from the group consisting of a quaternary ammonium, a protonated primary amine, a protonated secondary amine, a protonated tertiary amine and combinations thereof; and b) said anionic polymer comprising a moiety selected from the group consisting of an unprotonated carboxylic group, an unprotonated alcohol group, an unprotonated thiol group, an unprotonated primary amine, an unprotonated secondary amine and combinations thereof.

3 . The encapsulate of claim 1 , wherein:
a) said cationic polymer comprises a material selected from the group consisting of:
(i) a protein;
(ii) a polysaccharide;
(iii) a polyamide;
(iv) a poly(metha)acrylamide;
(v) a polyether;
(vi) a polyester;
(vii) a polyoxymethylene;
(viii) a silicone;
(ix) a polyurethane;
(x) a polyvinylether;
(xi) a polyethylene (propylene) oxide;
(xii) a polyvinyl alcohol;
(xiii) a polyvinyl acetate;
(xiv) a polyvinyl formal;
(xv) a polyvinyl butyral;
(xvi) a polyvinylmethylether;
(xvii) a polyvinylpyrrolidone;
(xviii) a polyvinylmethyl oxazolidone;
(xix) a polyvinylamine;
(xx) a polyvinylpyridine;
(xxi) a polyimidazoline;
(xxii) a poly(diallyldimethylammonium chloride) (DAMAC);
(xxiii) poly(N,N-dimethyl-3,5-methylenepiperidimium chloride);
(xxiv) copolymers of polyvinylamine and polvyinylalcohol
(xxi) oligimers of amines, in one aspect a diethylenetriamine, ethylene diamine, bis(3-aminopropyl)piperazine, N,N-Bis-(3-aminopropyl)methylamine, tris(2-aminoethyl)amine and mitures thereof;
(xxv) a polyethyleneimime
(xxvi) a derivatized polyethyleneimine, in one aspect an ethoxylated polyethyleneimine;
(xxvii) a cationic surfactant, in one aspect;
(xxviii) a polymeric compound comprising, at least two moieties selected from the moieties consisting of a carboxylic acid moiety, an amine moiety, a hydroxyl moiety, and a nitrile moiety on a backbone of polybutadiene, polyisoprene, polybutadiene/styrene, polybutadiene/acrylonitrile, carboxyl-terminated polybutadiene/acrylonitrile or combinations thereof; and
(xxiv) mixtures and/or co-polymers thereof; and
b) said anionic polymer comprises a material selected from the group consisting of comprising a material selected from the group consisting of:
(i) a protein;
(ii) a polysaccharide;
(iii) a polyamide;
(iv) a poly(metha)acrylamide;
(v) a polyether;
(vi) a polyester;
(vii) a polyoxymethylene;
(viii) a silicone;
(ix) a polyurethane;
(x) a polyvinylether;
(xi) a polyethylene (propylene) oxide;
(xii) a polyvinyl alcohol;
(xiii) a polyvinyl acetate;
(xiv) a polyvinyl formal;
(xv) a polyvinyl butyral;
(xvi) a polyvinylmethylether;
(xvii) a polyvinylpyrrolidone;
(xviii) a polyvinylmethyl oxazolidone;
(xix) a polyvinylamine;
(xx) a polyvinylpyridine;
(xxii) a polyacrylate,
(xxiii) copolymers of polyvinylamine and polvyinylalcohol
(xxiv) a polymeric compound comprising, at least two moieties selected from the moieties consisting of a carboxylic acid moiety, an amine moiety, a hydroxyl moiety, and a nitrile moiety on a backckbone of polybutadiene, polyisoprene, polybutadiene/styrene, polybutadiene/acrylonitrile, carboxyl-terminated polybutadiene/acrylonitrile or combinations thereof; and
(xxv) mixtures and/or co-polymers thereof.

4 . The encapsulate of claim 1 wherein:
a) said cationic polymer comprises a material selected from the group consisting of a poly peptide; a starch, a guar, a cellulose and mixtures thereof; and
b) said anionic polymer comprises a material selected from the group consisting of: a poly peptide; a starch, a guar, a cellulose and mixtures thereof.

5 . The encapsulate of claim 1 wherein:
a) said cationic polymer comprises hydroxyl ethyl cellulose; and
b) said anionic polymer comprises carboxyl methyl cellulose.

6 . The encapsulate of claim 1 wherein;
a) said core comprises a material selected from the group consisting of perfumes; brighteners; dyes; insect repellants; silicones; waxes; flavors; vitamins; fabric softening agents; skin care agents in one aspect, paraffins; enzymes; anti-bacterial agents; bleaches; sensates; and mixtures thereof;
b) said shell comprises a material selected from the group consisting of polyethylenes; polyamides; polystyrenes; polyisoprenes; polycarbonates; polyesters; polyacrylates; aminoplasts, in one aspect said aminoplast comprises a polyureas, polyurethane, and/or polyureaurethane, in one aspect said polyurea comprises polyoxymethyleneurea and/or melamine formaldehyde; polyolefins; polysaccharides, in one aspect alginate and/or chitosan; gelatin; shellac; epoxy resins; vinyl polymers; water insoluble inorganics; silicone; and mixtures thereof.

7 . The encapsulate of claim 5 wherein said core comprises perfume.

8 . The encapsulate of claim 7 wherein said shell comprises melamine formaldehyde and/or cross linked melamine formaldehyde.

9 . The encapsulate of claim 1 , said encapsulate comprising, based on total encapsulate weight, from about 0.1% to about 80% of said coating.

10 . The encapsulate of claim 1 , wherein the ratio of said cationic polymer to said anionic polymer is from about 99.95:0.05 to about 0.05:99.95.

11 . The encapsulate of claim 8 , said encapsulate comprising, based on total encapsulate weight, from about 1% to about 25% of said coating and the ratio of said cationic polymer to said anionic polymer being from about 5:1 to about 1:5.

12 . An agglomerate comprising the encapsulate of claim 1

13 . A consumer product comprising the encapsulate of claim 1 and an adjunct ingredient.

14 . The consumer product of claim 13 , said consumer product being a cleaning and/or treatment composition.

15 . The consumer product of claim 13 , said consumer product being a laundry detergent and/or fabric softener.

16 . A solid detergent comprising the agglomerate of claim 12 and an adjunct ingredient.

17 . A method of cleaning or treating a situs comprising optionally washing and/or rinsing said situs, contacting said situs with the composition of claim 1 and optionally washing and/or rinsing said situs.

18 . A process of making a coated encapsulate comprising:
a) combining an encapsulate, a plasticizer, a coating material comprising a cationic polymer and an anionic polymer and, optionally, a binder and/or chelant to form a mixture; b) combining said mixture with said dusting agent to form a material; and c) removing a sufficient amount of said plasticizer from said material to yield a product comprising, based on total product weight from about 1% to about 50% plasticizer.

19 . A process of making a coated encapsulate according to claim 18 wherein:
a) said encapsulate comprises a core comprising perfume;
b) said plasticizer comprises water;
c) said cationic polymer comprises a polysaccharide;
d) an anionic polymer comprises a polysaccharide; and
e) said dusting agent comprises silica.

20 . A process of making a coated encapsulate according to claim 18 wherein:
a) said cationic polymer comprises hydroxyl ethyl cellulose and
b) an anionic polymer comprises carboxyl methyl cellulose.

Assignees

• Procter & Gamble

Inventors

• Chieffi Andre
• Martin Julian David
• Smets Johan
• Dihora Jiten Odhavji

Classifications

• A61P31/04

  Antibacterial agents · CPC title

• A61K8/8147

  Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers · CPC title

• B01J13/22

  Coating · CPC title

• C11D3/3703

  Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C11B9/0023

  containing nitrogen as the only heteroatom · CPC title