US4685930A
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Method for cleaning textiles with cyclic siloxanes
Assignee: Dow Silicones Corp
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Filing: 1986-02-27
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Granted: 1987-08-11
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Expires: 2006-02-27
Abstract
Abstract A method is disclosed for cleaning textiles using cyclic dimethylsiloxanes as a cleaning fluid for removing soil spots. The useful siloxanes include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.
Inventors
- 👤 Kenneth A. Kasprzak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:44
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/373; C11D3/3734; C11D3/162; Y; Y10; Y10S; Y10S8/00; Y10S8/01
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
57 words
A method for cleaning textiles which comprises applying a liquid composition consisting essentially of about 100 percent by weight of a cyclic siloxane selected from the group consisting of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane to a textile soiled with oil, grease or sebum, and removing from the textile a combination comprising cyclic siloxane and oil, grease or sebum.
Claim 2
Independent Claim
57 words
A method for cleaning textiles which comprises applying a liquid composition consisting essentially of about 100 percent by weight of a cyclic siloxane selected from the group consisting of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane to a textile soiled with oil, grease or sebum, and removing from the textile a combination comprising cyclic siloxane and oil, grease or sebum.
Claim 3
Independent Claim
60 words
A method for cleaning textiles which comprises applying to a soiled textile a composition consisting essentially of (a) 30 to 70 percent by weight of a cyclic siloxane selected from the group consisting of octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane, and (b) 30 to 70 percent by weight of tetrachloroethylene; and removing from the textile a combination comprising soil, tetrachloroethylene and cyclic siloxane.
Claim 4
Independent Claim
60 words
A method for cleaning textiles which comprises applying to a soiled textile a composition consisting essentially of (a) 30 to 70 percent by weight of a cyclic siloxane selected from the group consisting of octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane, and (b) 30 to 70 percent by weight of tetrachloroethylene; and removing from the textile a combination comprising soil, tetrachloroethylene and cyclic siloxane.
Claim 5
Independent Claim
51 words
A method for cleaning textiles which comprises applying to a soiled textile a composition consisting essentially of (a) 30 to 70 percent by weight of octamethylcyclotetrasiloxane, and (b) 30 to 70 percent by weight of mineral spirits; and removing from the textile a combination comprising soil, mineral spirits and cyclic siloxane.
Claim 6
Independent Claim
51 words
A method for cleaning textiles which comprises applying to a soiled textile a composition consisting essentially of (a) 30 to 70 percent by weight of octamethylcyclotetrasiloxane, and (b) 30 to 70 percent by weight of mineral spirits; and removing from the textile a combination comprising soil, mineral spirits and cyclic siloxane.
Claim 7
Independent Claim
119 words
A method for cleaning textiles which comprises applying to a textile soiled with oil, grease or sebum, a composition consisting essentially of (a) an absorbent material selected from the group consisting of mineral particulates, organic particulates and synthetic porous polymers, and (b) an effective amount to aid soil removal of a solvent component comprising a cyclic siloxane selected from the group consisting of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane, wherein said absorbent material (a) is used at a level of about 5 to 40 weight percent based on said component (b) and wherein said cyclic siloxane comprises about 100 percent of said solvent component; and removing from the textile a combination comprising oil, grease or sebum, absorbent material and cyclic siloxane.
Claim 8
Independent Claim
119 words
A method for cleaning textiles which comprises applying to a textile soiled with oil, grease or sebum, a composition consisting essentially of (a) an absorbent material selected from the group consisting of mineral particulates, organic particulates and synthetic porous polymers, and (b) an effective amount to aid soil removal of a solvent component comprising a cyclic siloxane selected from the group consisting of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane, wherein said absorbent material (a) is used at a level of about 5 to 40 weight percent based on said component (b) and wherein said cyclic siloxane comprises about 100 percent of said solvent component; and removing from the textile a combination comprising oil, grease or sebum, absorbent material and cyclic siloxane.
Claim 9
Dependent Claim
23 words
The method of claim 4, wherein said composition further comprises from about 0.1 to 3 percent by weight of a cationic antistatic agent.
Claim 10
Independent Claim
106 words
A method for cleaning textiles which comprises applying to a textile soiled with oil, grease or sebum, a composition consisting essentially of (a) a surfactant selected from the group consisting of anionic, nonionic, zwitterionic and ampholytic surfactants, and (b) an effective amount to aid soil removal of a solvent component comprising a cyclic siloxane selected from the group consisting of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane, wherein said surfactant constitutes from about 10 to 80 weight percent of said composition and said cyclic siloxane comprises about 100 percent of said solvent component; and removing from the textile a combination comprising oil, grease or sebum, surfactant and cyclic siloxane.
Claim 11
Independent Claim
106 words
A method for cleaning textiles which comprises applying to a textile soiled with oil, grease or sebum, a composition consisting essentially of (a) a surfactant selected from the group consisting of anionic, nonionic, zwitterionic and ampholytic surfactants, and (b) an effective amount to aid soil removal of a solvent component comprising a cyclic siloxane selected from the group consisting of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane, wherein said surfactant constitutes from about 10 to 80 weight percent of said composition and said cyclic siloxane comprises about 100 percent of said solvent component; and removing from the textile a combination comprising oil, grease or sebum, surfactant and cyclic siloxane.
Claim 12
Dependent Claim
13 words
The method of claim 6, wherein said surfactant is of the nonionic type.
Claim 13
Dependent Claim
31 words
The method of claim 7, wherein said surfactant is a condensation product of polyethylene oxide with an organic hydrophobic compound selected from the group consisting of nonyl phenol and myristyl alcohol.
Claim 14
Dependent Claim
22 words
The method of claim 6, wherein said composition further comprises from 0 to about 50 weight percent of a detergent builder compound.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |