US4784786A
Expired / Lapsed
US
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Glass cleaning composition containing an EMA resin and a poly(acrylamidomethylpropane) sulfonic acid to reduce friction and streaking
Assignee: Creative Products Resource Inc
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Filing: 1987-04-08
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Granted: 1988-11-15
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Expires: 2007-04-08
Abstract
Abstract A cleaning solution comprising a water-alcohol mixture, an anionic surfactant, a glycol ether, an anionic polysulfonic acid and an anhydride compound comprising an olefin-maleic anhydride copolymer, a monomeric cyclic anhydride or mixtures thereof, is disclosed which is employed to impregnate absorbent substrates to prepare applicators useful for cleaning glass surfaces.
Inventors
- 👤 James A. Smith
- 👤 George W. Kellett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:55
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; C11D17/00; C11D17/04; C11D17/049; C11D3/20; C11D3/2075; C11D3/2082; C11D3/34; C11D3/349; C11D3/378; C11D3/43; C11D3/2003; C11D3/2006; C11D3/2068
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
143 words
A glass cleaning solution comprising: (a) an anhydride compound selected from the group consisting of about 0.03-0.25% of a co-polymer derived from (1) a maleic anhydride of the formula: ##STR2## wherein R and R 1 are independently selected from the group consisting of H, (C 1 -C 4 )alkyl, phenyl, (C 1 -C 4 )alkylphenyl, phenyl(C 1 -C 4 )alkylene and (2) a (C 1 -C 4 )olefin; (b) an amount of ammonia or an amine effective to solubilize said anhydride compound; (c) about 0.025-0.5% of poly(2-acrylamido-2-methyl propane) sulfonic acid; (d) an effective amount of an anionic surfactant; (e) an effective grease-solubilizing amount of a (C 1 -C 4 )alkylene (C 1 -C 4 )alkyl ether or a (C 1 -C 4 )dialkylene (C 1 -C 4 )alkyl ether; (f) about 5-25% of a (C 1 -C 4 )alkanol; (g) the balance water.
Claim 2
Dependent Claim
143 words
A glass cleaning solution comprising: (a) an anhydride compound selected from the group consisting of about 0.03-0.25% of a co-polymer derived from (1) a maleic anhydride of the formula: ##STR2## wherein R and R 1 are independently selected from the group consisting of H, (C 1 -C 4 )alkyl, phenyl, (C 1 -C 4 )alkylphenyl, phenyl(C 1 -C 4 )alkylene and (2) a (C 1 -C 4 )olefin; (b) an amount of ammonia or an amine effective to solubilize said anhydride compound; (c) about 0.025-0.5% of poly(2-acrylamido-2-methyl propane) sulfonic acid; (d) an effective amount of an anionic surfactant; (e) an effective grease-solubilizing amount of a (C 1 -C 4 )alkylene (C 1 -C 4 )alkyl ether or a (C 1 -C 4 )dialkylene (C 1 -C 4 )alkyl ether; (f) about 5-25% of a (C 1 -C 4 )alkanol; (g) the balance water.
Claim 3
Dependent Claim
15 words
The glass cleaning solution of claim 1 wherein the copolymer is an ethylene-maleic anhydride copolymer.
Claim 4
Dependent Claim
25 words
The glass cleaning solution of claim 1 wherein the (C 1 -C 4 )alkylene (C 1 -C 4 )alkyl ether comprises propylene glycol monomethyl ether.
Claim 5
Dependent Claim
13 words
The glass cleaning solution of claim 1 which comprises about 0.1-1.0% of N-methyl-2-pyrrolidone.
Claim 6
Dependent Claim
16 words
The glass cleaning solution of claim 1 wherein the anionic surfactant comprises a fatty alcohol-polyethylenoxysulfate salt.
Claim 7
Dependent Claim
17 words
The glass cleaning solution of claim 1 wherein the (C 1 -C 4 )lower alkanol comprises isopropanol.
Claim 8
Dependent Claim
14 words
The glass cleaning solution of claim 1 which has a pH of about 7.5-10.
Claim 9
Dependent Claim
26 words
The glass cleaning solution of claim 7 which comprises an amount of an alkanol amine effective to adjust the pH of the solution to about 8-9.75.
Claim 10
Dependent Claim
14 words
The glass cleaning solution of claim 8 which comprises about 0.05-0.75% of triethanol amine.
Claim 11
Dependent Claim
16 words
The glass cleaning solution of claim 1 which comprises an effective amount of a glycol plasticizer.
Claim 12
Dependent Claim
17 words
The glass cleaning solution of claim 10 which comprises about 0.1-1.0% of propylene glycol or ethylene glycol.
Claim 13
Dependent Claim
92 words
A glass cleaning solution comprising: (a) about 10-35% of an aqueous solution of about 0.25-1.0% ethylene-maleic anhydride copolymer and an amount of a basic compound effective to solubilize said copolymer; (b) about 0.04-0.25% of poly(acrylamidomethylpropane) sulfonic acid; (c) about 0.01-0.3% of an anionic sulfonate or sulfate surfactant; (d) about 0.05-1.0% of a (C 1 -C 4 )alkylene glycol (C 1 -C 4 )alkyl ether; (e) 5-25% of a (C 1 -C 4 )lower alkanol; and (f) the balance water, wherein the pH of said glass cleaning solution is adjusted to about 8-9.5.
Claim 14
Dependent Claim
92 words
A glass cleaning solution comprising: (a) about 10-35% of an aqueous solution of about 0.25-1.0% ethylene-maleic anhydride copolymer and an amount of a basic compound effective to solubilize said copolymer; (b) about 0.04-0.25% of poly(acrylamidomethylpropane) sulfonic acid; (c) about 0.01-0.3% of an anionic sulfonate or sulfate surfactant; (d) about 0.05-1.0% of a (C 1 -C 4 )alkylene glycol (C 1 -C 4 )alkyl ether; (e) 5-25% of a (C 1 -C 4 )lower alkanol; and (f) the balance water, wherein the pH of said glass cleaning solution is adjusted to about 8-9.5.
Claim 15
Dependent Claim
23 words
The glass cleaning solution of claim 12 wherein the pH of the solution is adjusted by the addition of about 0.05-0.75% triethanol amine.
Claim 16
Dependent Claim
13 words
The glass cleaning solution of claim 12 wherein the basic compound is ammonia.
Claim 17
Dependent Claim
25 words
An applicator for cleaning glass surfaces comprising a porous substrate impregnated with an effective amount of the glass cleaning solution of claims 1 or 12.
Claim 18
Dependent Claim
14 words
The applicator of claim 15 wherein the porous substrate comprises a nonwoven cellulosic sheet.
Claim 19
Dependent Claim
12 words
The applicator of claim 15 which is packaged in a moisture-resistant container.
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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) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |