US4400288A — Detergent compositions and processes of making th…

Claim 1

Independent Claim 82 words

A foam-controlled detergent composition comprising from 1.5% to 100% of a mixture of: (a) alkoxylated nonionic surfactant, (b) polydimethylsiloxane foam controller dispersed in at least part of the alkoxylated nonionic surfactant, and (c) siloxane-oxyalkylene copolymer as dispersing agent for the polydimethylsiloxane foam controller, wherein the weight ratio of alkoxylated nonionic surfactant to polydimethylsiloxane foam controller is in the range from 10:1 to 100:1 and the weight ratio of polydimethylsiloxane foam controller to siloxane-oxyalkylene copolymer is in the range from 2:1 to 20:1.

Claim 2

Dependent Claim 82 words

A foam-controlled detergent composition comprising from 1.5% to 100% of a mixture of: (a) alkoxylated nonionic surfactant, (b) polydimethylsiloxane foam controller dispersed in at least part of the alkoxylated nonionic surfactant, and (c) siloxane-oxyalkylene copolymer as dispersing agent for the polydimethylsiloxane foam controller, wherein the weight ratio of alkoxylated nonionic surfactant to polydimethylsiloxane foam controller is in the range from 10:1 to 100:1 and the weight ratio of polydimethylsiloxane foam controller to siloxane-oxyalkylene copolymer is in the range from 2:1 to 20:1.

Claim 3

Dependent Claim 36 words

A composition according to claim 1 wherein the polydimethylsiloxane foam controller is dispersed in the nonionic surfactant together with particulate silica in a weight ratio of polydimethylsiloxane to silica in the range from 20:1 to 200:1.

Claim 4

Dependent Claim 45 words

A composition according to claim 2 wherein the weight ratio of alkoxylated nonionic surfactant to polydimethylsiloxane foam controller is in the range from 25:1 to 65:1 and the weight ratio of polydimethylsiloxane foam controller to siloxane-oxyalkylene copolymer is in the range from 5:1 to 15:1.

Claim 5

Dependent Claim 147 words

A composition according to claim 1 wherein the siloxaneoxyalkylene copolymer has the general formula I: R.sub.a SiY.sub.4-a I wherein a is 0 or an integer from 1 to 3, R is an alkyl group containing from 1 to 30 carbon atoms, or a group of formula II: R'(OR').sub.b OR" II wherein R' is an alkylene group containing from 1 to 6 carbon atoms, b has a value of from 1 to 100; and R" is a capping group which is selected from hydrogen, alkyl, acyl, aryl, alkaryl, aralkyl or alkenyl groups containing up to 20 carbon atoms, sulfate, sulfonate, phosphate, carboxylate, phosphate, borate or isocyanate groups, or mixtures thereof: Y is a group having the formula III: ##STR2## wherein R is as defined above and c has a value from 1 to 200; and wherein at least one R group in the compound has the formula II.

Claim 6

Dependent Claim 96 words

A composition according to claim 4 wherein the siloxane-oxyalkylene copolymer is selected from copolymers having the general formula IV to VII: R'''.sub.a Si{(OSiMe.sub.2).sub.p (OSiMeG).sub.q OSiMe.sub.2 G}.sub.4-a IV R'''.sub.a Si{(OSiMe.sub.2).sub.p (OSiMeG).sub.r OSiMe.sub.3 }.sub.4-a V GMe.sub.2 Si(OSiMe.sub.2).sub.p (OSiMeG).sub.q OsiMe.sub.2 G, and VI Me.sub.3 Si(OSiMe.sub.2).sub.p (OSiMeG).sub.r OSiMe.sub.3 VII wherein R''' is a C 1-10 alkyl group, Me is methyl, G is the group of Formula II, a has a value of 0 or 1, p has a value of at least 1, q has a value of 0 to 50 and r has a value of 1 to 50.

Claim 7

Dependent Claim 42 words

A composition according to claim 4 comprising from 2% to 35% of nonionic surfactant and from 0.05% to 0.75% in total of polydimethylsiloxane foam-controller and siloxane-oxyalkylene copolymer dispersing agent in a weight ratio of foam-controller to dispersing agent from 8:1 to 12:1.

Claim 8

Dependent Claim 81 words

A granular detergent composition according to claim 1 comprising: (a) from 30% to 99% of base powder comprising: (i) from 1% to 15% of organic surfactant selected from anionic, zwitterionic and ampholytic surfactants and mixtures thereof, and (ii) from 5% to 98% of a detergency builder, and (b) from 1% to 30% of a premix of alkoxylated nonionic surfactant, dispersed polydimethylsiloxane foam controller, and siloxane-oxyalkylene copolymer dispersing agent sprayed in fluent form onto at least a part of the base powder.

Claim 9

Dependent Claim 102 words

A process for making a foam-controlled detergent composition comprising from 1.5% to 100% of a mixture of: (a) alkoxylated nonionic surfactant, (b) polydimethylsiloxane foam controller, and (c) siloxane-oxyalkylene copolymer, wherein the weight ratio of alkoxylated nonionic surfactant to polydimethylsiloxane foam controller is in the range from 10:1 to 100:1, and the weight ratio of polydimethylsiloxane foam controller to siloxane-oxyalkylene copolymer is in the range from 2:1 to 20:1, the process comprising forming a surfactant premix comprising at least part of the nonionic surfactant, the polydimethylsiloxane foam controller, and the siloxane-oxyalkylene copolymer and subjecting the premix in fluent form to high shear mixing.

Claim 10

Dependent Claim 102 words

A process for making a foam-controlled detergent composition comprising from 1.5% to 100% of a mixture of: (a) alkoxylated nonionic surfactant, (b) polydimethylsiloxane foam controller, and (c) siloxane-oxyalkylene copolymer, wherein the weight ratio of alkoxylated nonionic surfactant to polydimethylsiloxane foam controller is in the range from 10:1 to 100:1, and the weight ratio of polydimethylsiloxane foam controller to siloxane-oxyalkylene copolymer is in the range from 2:1 to 20:1, the process comprising forming a surfactant premix comprising at least part of the nonionic surfactant, the polydimethylsiloxane foam controller, and the siloxane-oxyalkylene copolymer and subjecting the premix in fluent form to high shear mixing.

Claim 11

Dependent Claim 40 words

A process according to claim 8 comprising the steps of pre-mixing the alkoxylated nonionic surfactant and siloxane-oxyalkylene copolymer dispersing agent, admixing the polydimethylsiloxane foam controller with the surfactant/dispersing agent mixture, and thereafter subjecting the total mixture to high shear mixing.

Claim 12

Dependent Claim 21 words

A foam-controlled detergent composition according to claim 1, in which the polydimethylsiloxane is dispersed in all of the alkoxylated nonionic surfactant.

Claim 13

Dependent Claim 44 words

A foam-controlled detergent composition according to claim 10, in which the alkoxylated nonionic surfactant is condensation product of primary or secondary aliphatic alcohol having from 8 to 24 carbon atoms with from 2 to about 18 moles of alkylene oxide per mole of alcohol.

Claim 14

Dependent Claim 33 words

A foam controlled detergent composition according to claim 11, in which the alkoxylated nonionic surfactant is ethoxylated primary C 9-15 alcohol having an average degree of ethoxylation ranging from about 2 to 9.

Claim 15

Dependent Claim 44 words

A foam-controlled detergent composition according to claim 1, in which the alkoxylated nonionic surfactant is condensation product of primary or secondary aliphatic alcohol having from 8 to 24 carbon atoms with from 2 to about 18 moles of alkylene oxide per mole of alcohol.

Claim 16

Dependent Claim 32 words

A foam-controlled detergent composition according to claim 13 in which the alkoxylated nonionic surfactant is ethoxylated primary C 9-15 alcohol having an average degree of ethoxylation ranging from about 2 to 9.

Claim 17

Dependent Claim 24 words

A foam-controlled composition according to claim 2, in which the weight ratio of polydimethylsiloxane to silica is in the range from 25:1 to 100:1.

Claim 18

Dependent Claim 38 words

A foam-controlled composition according to claim 12, in which the polydimethylsiloxane foam controller is dispersed in the nonionic surfactant together with particulate silica in a weight ratio of polydimethylsiloxane to silica in the range from 20:1 to 100:1.

Claim 19

Dependent Claim 20 words

A foam-controlled composition according to claim 16, in which the siloxane-oxyalkylene copolymer is alkoxylated siloxane containing oxyethylene and oxypropylene groups.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1986-08-22	1987-02-21	1987-08-23	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1990-08-22	1991-02-21	1991-08-23	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1994-08-22	1995-02-21	1995-08-23	$7700.00	Window Closed / Lapsed

Detergent compositions and processes of making thereof

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag