US4511489A
Expired / Lapsed
US
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Composition for cleaning and imparting antistatic properties to plastics surfaces
Assignee: SC Johnson and Son Inc
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Filing: 1983-06-01
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Granted: 1985-04-16
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Expires: 2003-06-01
Abstract
Abstract A cleaning and polishing composition for acrylic plastic substrates, including Plexiglas, Lexan and the like, as well as other hard surfaces is provided by an aqueous dispersion of a fluid silicone oil such as polydimethylsiloxane, a nonionic or anionic surfactant such as sodium lauryl sulfate and a fluorinated organic surface-active compound, the balance being water. These compositions provide fast, streak-free and dust repelling cleaning and polishing, especially suitable for Plexiglas and other acrylic plastic materials.
Inventors
- 👤 Luz P. Requejo
- 👤 Charles J. Butke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:48
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/004; C09; C09G; C09G1/00; C09G1/06; C09G1/14; C09G1/16; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/373
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
247 words
A wax-free composition for cleaning polyacrylic and polycarbonate plastic surfaces which, on an active basis by weight of said composition, consists essentially of: (a) from 0.5 to about 10% of a fluid silicone oil having lubricating activity, said silicone oil being a polydimethylsiloxane having a viscosity of from 40 to 100,000 centistokes at 25° C.; (b) from about 0.1 to 5% of an anionic or nonionic surfactant; (c) from about 0.005 to 1% of an anionic or nonionic fluorinated organic surface active compound selected from the group consisting of: (i) anionic fluorinated hydrocarbon surfactants wherein the fluorinated hydrocarbon has a branched chain structure and having aliphatic perfluorocarbon groups at one end thereof; (ii) nonionic fluorinated hydrocarbon surfactants having a fluorinated hydrocarbon portion exhibiting a branched structure and having the formula: R.sub.f (OCH.sub.2 CH.sub.2).sub.n OR.sub.f wherein R f is C 8 F 15 , C 10 F 19 or C 12 F 23 and n is an integer from 10 to 30; (iii) nonionic fluorinated hydrocarbon surfactants wherein the fluorinated hydrocarbon portion exhibits a branched structure and having the formula: R.sub.f (OCH.sub.2 CH.sub.2).sub.m OR wherein R f is as in (ii), R is a lower alkyl and m is an integer from 2 to 10; and (iv) anionic fluorinated hydrocarbon surfactants wherein the fluorinated hydrocarbon portion exhibits a straight chain structure and having aliphatic perfluorocarbon groups at one end of the chain thereof, and (d) water, said composition containing less than 0.5% by weight of an organic solvent.
Claim 2
Dependent Claim
247 words
A wax-free composition for cleaning polyacrylic and polycarbonate plastic surfaces which, on an active basis by weight of said composition, consists essentially of: (a) from 0.5 to about 10% of a fluid silicone oil having lubricating activity, said silicone oil being a polydimethylsiloxane having a viscosity of from 40 to 100,000 centistokes at 25° C.; (b) from about 0.1 to 5% of an anionic or nonionic surfactant; (c) from about 0.005 to 1% of an anionic or nonionic fluorinated organic surface active compound selected from the group consisting of: (i) anionic fluorinated hydrocarbon surfactants wherein the fluorinated hydrocarbon has a branched chain structure and having aliphatic perfluorocarbon groups at one end thereof; (ii) nonionic fluorinated hydrocarbon surfactants having a fluorinated hydrocarbon portion exhibiting a branched structure and having the formula: R.sub.f (OCH.sub.2 CH.sub.2).sub.n OR.sub.f wherein R f is C 8 F 15 , C 10 F 19 or C 12 F 23 and n is an integer from 10 to 30; (iii) nonionic fluorinated hydrocarbon surfactants wherein the fluorinated hydrocarbon portion exhibits a branched structure and having the formula: R.sub.f (OCH.sub.2 CH.sub.2).sub.m OR wherein R f is as in (ii), R is a lower alkyl and m is an integer from 2 to 10; and (iv) anionic fluorinated hydrocarbon surfactants wherein the fluorinated hydrocarbon portion exhibits a straight chain structure and having aliphatic perfluorocarbon groups at one end of the chain thereof, and (d) water, said composition containing less than 0.5% by weight of an organic solvent.
Claim 3
Dependent Claim
51 words
The composition of claim 1 wherein the anionic or nonionic surfactant is selected from the group consisting of alkali metal alkyl sulfates, ammonium alkyl sulfates, alkali metal alkylether sulfates, ammonium alkylether sulfates, alkali metal alkylaryl sulfonates, thioether sulfates, thioether sulfonates, linear primary alcohol ethoxylates and polyoxyethylene oxide ethers of fatty alcohols.
Claim 4
Dependent Claim
18 words
The composition of claim 2 wherein the anionic or nonionic surfactant is the anionic surfactant sodium lauryl sulfate.
Claim 5
Dependent Claim
25 words
The composition of claim 1 wherein the polydimethylsiloxane is present in an amount of from about 1 to about 5% by weight of the composition.
Claim 6
Dependent Claim
23 words
The composition of claim 4 wherein said anionic or nonionic surfactant is present in an amount of from about 0.1 to about 2%.
Claim 7
Dependent Claim
24 words
The composition of claim 4 wherein said fluorinated organic surface active agent is present in an amount of from about 0.005 to about 0.1%.
Claim 8
Dependent Claim
51 words
The composition of claim 6 wherein said anionic or nonionic surfactant is selected from the group consisting of alkali metal alkyl sulfates, ammonium alkyl salts, alkali metal alkylether sulfates, ammonium alkylether sulfates, alkali metal alkylaryl sulfonates, thioether sulfates, thioether sulfonates, linear primary alcohol ethoxylates and polyoxyethylene oxide ethers of fatty alcohols.
Claim 9
Dependent Claim
21 words
The composition of claim 7 wherein the polydimethylsiloxane has a viscosity of from about 40 to 15,000 centistokes at 25° C.
Claim 10
Dependent Claim
146 words
The composition of claim 8 wherein the fluorinated organic surface active agent is selected from the group consisting of: (1) the sodium salt of a branched chain perfluoroalkenyloxybenzene sulphonic acid of the formula: C 10 F 19 OC 6 H 4 (SO 3 ).sup.(-) Na.sup.(+) ; (2) the potassium salt of a fluoroalkyl carboxylate, and (3) a mixture of fluorinated compounds of the formula (i) (CF 2 ) m (CF 2 ) m C 4 H 9 F 2 O 4 P.H 3 N, (ii) (CF 2 ) m C 2 H 6 FO 4 P.H 3 N, (iii) (CF 2 ) m C 2 H 6 FO 4 P.2H 3 N, and (iv) (CH 2 H 4 O) m (CH 2 H 4 O) m C 23 H 48 NO 2 .CH 3 O 4 S, wherein m is an integer from 2 to 10.
Claim 11
Dependent Claim
18 words
The composition of claim 9 wherein the anionic or nonionic surfactant is the anionic surfactant sodium lauryl sulfate.
Claim 12
Dependent Claim
29 words
The composition of claim 9 wherein the fluorinated organic surface active agent is present in an amount of from about 0.0075 to about 0.075% by weight of the composition.
Claim 13
Dependent Claim
22 words
The composition of claim 9 wherein the polydimethylsiloxane is present in an amount of from about 1 to about 2.5% by weight.
Claim 14
Dependent Claim
15 words
The composition of claim 12 which includes an effective amount of formaldehyde as a preservative.
Claim 15
Dependent Claim
22 words
The composition of claim 13 wherein formaldehyde is present in an amount of less than about 0.04% by weight of the composition.
Claim 16
Dependent Claim
31 words
The composition of claim 13 wherein the anionic or nonionic surfactant is the anionic surfactant sodium lauryl sulfate present in an amount of from about 0.25 to about 1.0% by weight.
Claim 17
Dependent Claim
16 words
The composition of claim 7 containing less than about 0.1% by weight of an organic solvent.
Claim 18
Dependent Claim
21 words
The composition of claim 12 wherein the fluorinated surfactant is C 10 F 19 OC 6 H 4 (SO 3 )Na.
Claim 19
Dependent Claim
17 words
The composition of claim 12 wherein the fluorinated surfactant is the potassium salt of a fluoroalkyl carboxylate.
Claim 20
Dependent Claim
100 words
The composition of claim 12 wherein the fluorinated surfactant is a mixture of fluorinated compounds of the formula (i) (CF 2 ) m (CF 2 ) m C 4 H 9 F 2 O 4 P.H 3 N, (ii) (CF 2 ) m C 2 H 6 FO 4 P.H 3 N, (iii) (CF 2 ) m C 2 H 6 FO 4 P.2H 3 N, and (iv) (CH 2 H 4 O) m (CH 2 H 4 ) m C 23 H 48 NO 2 .CH 3 O 4 S, wherein m is an integer from 2 to 10.
Claim 21
Dependent Claim
11 words
The composition of claim 12 which includes formaldehyde as a preservative.
Claim 22
Dependent Claim
24 words
The composition of claim 12 wherein the polydimethylsiloxane lubricating fluid has a viscosity at 25° C. of from about 200 to about 500 centistokes.
Claim 23
Dependent Claim
47 words
A method for cleaning an acrylic or polycarbonate plastic surface, and for imparting to said surface a coating to reduce dust accumulation, the method comprising the steps of applying to said surface the composition of claim 1 and wiping said surface with a cloth, sponge, or towlette.
Claim 24
Dependent Claim
17 words
The method of claim 22 wherein the composition of claim 7 is applied to said plastic surface.
Claim 25
Dependent Claim
17 words
The method of claim 22 wherein the composition of claim 12 is applied to said plastic surface.
Claim 26
Dependent Claim
17 words
The method of claim 22 wherein the composition of claim 15 is applied to said plastic surface.
Claim 27
Dependent Claim
17 words
The method of claim 22 wherein the composition of claim 18 is applied to said plastic surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-15 | 1988-10-15 | 1989-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-15 | 1992-10-15 | 1993-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-15 | 1996-10-15 | 1997-04-16 | $7700.00 | Window Closed / Lapsed |