US 7,125,831 B2Granted

Detergent composition for dry cleaning comprising a cyclic polysiloxane and a polyether modified silicone

AssigneeNof Corporation

InventorsTakaya Azuma, Susumu Shirouzu

Life of this patent

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Abstract

The invention can provide a detergent composition for dry cleaning which comprises a nonionic surfactant as the component (a), a cyclic polysiloxane as the component (b) and a polyether modified silicone having a HLB value of at most 6 as the component (c), wherein the content of the component (a) is 5 to 70% by weight based on the total weight of the components (a), (b) and (c), the content of the total of the components (b) and (c) is 30 to 95% by weight based on the same, and the ratio by weight of the component (b) to the component (c) {b/c} is 1/10 to 20/1 and a detergent liquid for dry cleaning using the above detergent composition. The detergent composition and detergent liquid are excellent in detergency, capability of preventing recontamination and solubilizing power in water, which is less prone to cause annular stain on clothes even when a pretreatment agent is used, which imparts favorable flexibility and conformability to an object to be cleaned and which has favorable stability with the lapse of time.

Claims10

Dependent claims

A detergent composition for dry cleaning, which comprises a nonionic surfactant as component (a), a cyclic polysiloxane represented by the general formula (1) as component (b), a polyether modified silicone having a HLB value of at most 6 and represented by the general formula (2) as component (c), component (c) being different from the component (a), wherein the content of the component (a) is 5 to 70% by weight based on the total weight of the components (a), (b) and (c), the content of the total of the components (b) and (c) is 30 to 95% by weight based on the total weight of the components (a), (b) and (c), and the ratio by weight of the component (b) to the component (c) is 1/10 to 10/1, from 0.1 to 15% by weight of at least one species selected from the group consisting of an alkylimidazoline cationic surfactant or an alkyldimethylhydroxyethyl ammonium salt cationic surfactant as component (d), and a dry cleaning solvent selected from the group consisting of a halogen based solvent, a petroleum based solvent, or a silicone based solvent, said silicone based solvent being a different compound from said cyclic polysiloxane as component (e), wherein component (e) is present in an amount of 5 to 1000 times by volume, based on the total weight of components (a), (b), (c), and (d):

wherein k is a number from 3 to 6,
wherein R1 is an alkyl group having 1 to 5 carbon atoms or a phenyl group;
R2 is —(CH2)p —O—(C2H4O)q (C3H6O)r —R3 (R3 is hydrogen atom or an alkyl group having 1 to 5 carbon atoms, p is a number from 1 to 5, q and r are each the average number of addition moles, q is a number from 0 to 50, r is a number from 0 to 30 with the proviso that 1≦q+r<60);
m and n are each an average degree of polymerization, m is a number from 1 to 300, n is a number from 0 to 50;
R4 and R5 are each an alkyl group having 1 to 5 carbon atoms or phenyl group or R2, and may be the same as or different from each other with the proviso that when n is equal to 0, at least one of R4 and R5 is R2.

2 more elements

A detergent composition for dry cleaning, which comprises a nonionic surfactant as component (a), a cyclic polysiloxane represented by the general formula (1) as component (b), a polyether modified silicone having a HLB value of at most 6 and represented by the general formula (2) as component (c), component (c) being different from the component (a), wherein the content of the component (a) is 5 to 70% by weight based on the total weight of the components (a), (b) and (c), the content of the total of the components (b) and (c) is 30 to 95% by weight based on the total weight of the components (a), (b) and (c), and the ratio by weight of the component (b) to the component (c) is 1/10 to 10/1, from 0.1 to 15% by weight of at least one species selected from the group consisting of an alkylphosphoric ester anionic surfactant or an alkylbenzene sulfonate anionic surfactant as component (d), and a dry cleaning solvent selected from the group consisting of a halogen based solvent, a petroleum based solvent, or a silicone based solvent, said silicone based solvent being a different compound from said cyclic polysiloxane as component (e), wherein component (e) is present in an amount of 5 to 1000 times by volume, based on the total weight of components (a), (b), (c), and (d):

wherein k is a number from 3 to 6,
wherein R1 is an alkyl group having 1 to 5 carbon atoms or a phenyl group;
R2 is —(CH2)p —O—(C2H4O)q(C3H6O)r —R3 (R3 is hydrogen atom or an alkyl group having 1 to 5 carbon atoms, p is a number from 1 to 5, q and r are each the average number of addition moles, q is u ber from 0 to 50, r is a number from 0 to 30 with the proviso that 1≦q+r<60);
m and n are each an average degree of polymerization, m is a number from 1 to 300, n is a number from 0 to 50;
R4 and R5 are each an alkyl group having 1 to 5 carbon atoms or phenyl group or R2, and may be the same as or different from each other with the proviso that when n is equal to 0, at least one of R4 and R5 is R2.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/476,793Filed 29 May 2002
Priority: JP 2001-16341130 May 2001
Published: US 2004/0142838 A122 Jul 2004
Granted: 24 Oct 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

C11D 3/3734
Containing silicones: cyclic silicones
C11D 1/66
Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent: non-ionic compounds
C11D 1/825
Non-ionic compounds: mixtures of compounds all of which are non-ionic
C11D 3/162
Organic compounds: containing Si