Anti-foam compositions comprising an organopolysiloxane with adjacent hydrolysable groups

Patent metadata

Field	Value
Publication number	US-10836981-B2
Application number	US-201715808916-A
Country	US
Kind code	B2
Filing date	Nov 10, 2017
Priority date	Nov 10, 2017
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

The present application relates to anti-foam compositions and methods of making and using such compositions as well as consumer products that comprise such compositions and the use of same. Such anti-foam compositions have low viscosities yet are effective antifoamers.

First claim

What is claimed is:

1. A composition comprising an adjunct ingredient and an antifoam, said antifoam comprising:
a) an organopolysiloxane comprising at least one hydrolysable group of formula (1) said at least one hydrolysable group being bound to least one silicon atom of said organopolysiloxane segment composed of the main chain and said main chain containing a siloxy unit of formula (2) in an amount of at least 10 mole % based on weight of the said organopolysiloxane;

wherein X is a divalent hydrocarbon group comprising 1 to 10 carbon atoms and R is independently a hydrogen atom or a monovalent hydrocarbon group comprising 1 to 4 carbon atoms

wherein R 1 is independently a monovalent hydrocarbon group comprising 1 to 12 carbon atoms and R 2 is independently selected from an aryl moiety, a C 6 -C 12 alkylaryl moiety, and a C 6 -C 12 alkyl moiety, said moieties optionally comprising an oxygen atom or a halogen atom,

b) a non-linear organosilicone resin; and
c) hydrophobic filler
said composition being a laundry detergent and/or fabric enhancer;

wherein the antifoam's organopolysiloxane has formula (3)

wherein:
a) each R 1 is independently a monovalent hydrocarbon group comprising 1 to 12 carbon atoms;
b) each R 2 is independently selected from an aryl moiety, a C 6 -C 12 alkylaryl moiety, and a C 6 -C 12 alkyl moiety, said moieties optionally comprising an oxygen atom or a halogen atom;
c) R 3 is a hydrolyzable organic group of the formula (1) below:

wherein for each R 3 X is independently a divalent hydrocarbon group, and for each R 3 each R is independently a hydrogen atom or a monovalent hydrocarbon group comprising 1 to 4 carbon atoms;

d) each R 4 is independently R 1 , an organic moiety selected from the group consisting of a hydrolyzable organic moiety of the formula (1), a hydroxy moiety and methoxy moiety,
e) n is an integer of 5 to 10,000;
f) m is an integer of 1 to 2000; and
g) 1 is an integer of 1 to 20.

2. The composition according to claim 1 , wherein the antifoam's non-linear organosilicone resin is a siloxane resin comprising SiO 4/2 units and (R 5 ) 3 SiO 1/2 units and each of said unit's R 5 is independently selected from the group consisting of a monovalent hydrocarbon group comprising 1 to 10 carbon atoms, hydrocarbonoxy group or hydroxyl group with the proviso that at least 10 mole % of said R 5 moieties are monovalent hydrocarbon groups; and the ratio of and (R 5 ) 3 SiO 1/2 units to SiO 4/2 units in said siloxane resin is from about 0.4 to about 2.5.

3. The composition according to claim 1 , wherein antifoam's non-linear organosilicone resin comprises from about 0.1 to about 30% by the weight of resin of R 5 SiO 3/2 units.

4. The composition according to claim 1 comprising, based on total antifoam weight,
a) from about 30% to about 90% of said organopolysiloxane;
b) from about 1% to about 50% of said non-linear organosilicone resin; and/or
c) from about 0.5% to about 50% of said hydrophobic filler.

5. The composition according to claim 1 wherein the antifoam further comprises, based on total antifoam weight, from about 0.5% to about 20% of an organic oil.

6. The composition according to according to claim 1 comprising, based on total composition weight, less than 5% of said antifoam.

7. The composition according to claim 1 , wherein said antifoam is in a solid form, preferably in a form selected from the group consisting of a powder, an agglomerate, and mixtures thereof.

8. The composition according to claim 1 , wherein the adjunct ingredient is selected from the group consisting of surfactants, color care polymers, deposition aids, surfactant boosting polymers, pH adjusters, product color stabilizers, preservatives, solvents, builders, chelating agents, dye transfer inhibiting agents, dispersants, enzymes, and enzyme stabilizers, catalytic materials, bleach, bleach activators, polymeric dispersing agents, clay soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, UV absorbers, perfume and perfume delivery systems, structure elasticizing agents, thickeners/structurants, fabric softeners, carriers, hydrotropes, oligoamines, processing aids, hueing agents, and/or pigments.

9. A composition according to claim 8 comprising a surfactant selected from the group consisting of anionic surfactant, cationic surfactant, nonionic surfactant, zwitterionic surfactant, ampholytic surfactant and mixtures thereof.

10. A composition according to claim 8 wherein:
a) said fabric softener active is selected from the group consisting of polyglycerol esters, oily sugar derivatives, wax emulsions, fatty acids, N, N-bis(stearoyl-oxy-ethyl) N,N-dimethyl ammonium chloride, N,N-bis(tallowoyl-oxy-ethyl) N,N-dimethyl ammonium chloride, N,N-bis(stearoyl-oxy-ethyl)N-(2 hydroxyethyl)N-methyl ammonium methylsulfate and mixtures thereof;
b) said deposition aid polymer comprises a cationic polymer having a cationic charge of from about 0.005 meq/g to about 23 meq/g at the pH of said composition;
c) said perfume delivery system comprises components selected from the group consisting of a perfume microcapsule, or a moisture-activated perfume microcapsule, wherein the microcapsule comprises a shell comprising a polyacrylate and/or a polymer crosslinked with an aldehyde, a perfume carrier and an encapsulated perfume composition, wherein said perfume carrier may be selected from the group consisting of cyclodextrins, starch microcapsules, porous carrier microcapsules, and mixtures thereof; and wherein said encapsulated perfume composition may comprise low volatile perfume ingredients, high volatile perfume ingredients, and mixtures thereof;
d) said enzyme is selected from the group consisting of protease, amylase, lipase, mannanase, cellulase, xyloglucanase, pectate lyase, and mixtures thereof;
e) said structurant is selected from the group of hydrogenated castor oil; derivatives of hydrogenated castor oil; microfibrillar cellulose; hydroxyfunctional crystalline materials, long-chain fatty alcohols, 12-hydroxystearic acid; clays; and mixtures thereof;
f) said polymeric dispersing agent is selected from the group consisting of polycarboxylates, soil release polymers, carboxymethylcelluloses, poly(vinyl-pyrrolidone), poly (ethylene glycol), poly(vinyl alcohol), poly(vinylpyridine-N-oxide), poly(vinylimidazole), zwitterionic ethoxylated quaternized sulfated hexamethylene diamine, alkoxylated polyalkylenimine, ethoxylated polyamine, polyethylene glycol-polyvinylacetate;
g) said hueing agent is selected from the group consisting of small molecule dyes, polymeric dyes, dye clay conjugates and pigments; and
h) said oligoamine is selected from the group consisting of polyetheramines, and
i) mixtures thereof.

11. A detergent and/or a fabric enhancer comprising an adjunct ingredient and an antifoam prepared by combining the organopolysiloxane, non-linear organosilicone resin, and hydrophobic filler according to claim 1 to form a mixture and then heat treating said mixture at a temperature from about 50° C. to about 200° C.

12. A dete

Assignees

• Procter & Gamble

Inventors

• Panandiker Rajan Keshav
• Kluesener Bernard William
• Roeder Rachel Morgan Clayton
• Moriya Hiroyuki
• Irifune Shinji

Classifications

• C11D3/3738

  Alkoxylated silicones · CPC title

• C11D3/001

  Softening compositions · CPC title

• C11D3/0036

  Soil deposition preventing compositions; Antiredeposition agents · CPC title

• C11D1/146

  Sulfuric acid esters · CPC title

• C11D1/22

  derived from aromatic compounds · CPC title