US4699728A
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Aqueous acidic composition for cleaning fiberglass
Assignee: Joh A Benckiser GmbH
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Filing: 1986-05-29
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Granted: 1987-10-13
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Expires: 2006-05-29
Abstract
Abstract An aqueous acidic solution for cleaning fiberglass without significant discoloration of the surface thereof comprising a water-soluble organophosphonic acid and/or a water soluble acrylic acid polymer, in combination with a higher (alkyl)betaine surfactant and, optionally an amount of alkaline pH modifying substance effective to adjust the pH to a value within the range of about 3.0-7.0. The preferred (alkyl)betaine is lauramidopropyl betaine. Cleaning results are optimized when the acrylic polymer and organophosphate are combined in a cleaning composition having a pH of about 3.5-4.5.
Inventors
- 👤 Terri L. Riehm
- 👤 II Robert T. Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:16
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/88; C11D1/90; C11D3/00; C11D3/16; C11D3/36; C11D3/361; C11D3/364; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
142 words
An aqueous acidic composition useful to clean fiberglass comprising a foamable solution of: (a) water; (b) about 0.5-10% by weight of a water-soluble organophosphonic acid; (c) about 0.5-3.0% by weight of a higher (alkyl)-betaine surfactant having the structural formula ##STR2## wherein R 1 is C 10 -C 20 alkyl or C 10 -C 20 alkyl amidopropyl, R 2 and R 3 are each alkyl or hydroxyalkyl radicals having from 1 to 3 carbon atoms, R 4 is an alkylene or hydroxyalkylene radical having from 1 to 4 carbons and X is a CO 2 -anion; and (d) an alkaline pH modifying substance in an amount sufficient to adjust the pH value of the composition to within a range of about 3.0-7.0; (e) wherein the higher (alkyl)-betaine surfactant in combination with the organophosphonic acid generates effective cleaning capability without substantial likelihood of discoloration.
Claim 2
Dependent Claim
142 words
An aqueous acidic composition useful to clean fiberglass comprising a foamable solution of: (a) water; (b) about 0.5-10% by weight of a water-soluble organophosphonic acid; (c) about 0.5-3.0% by weight of a higher (alkyl)-betaine surfactant having the structural formula ##STR2## wherein R 1 is C 10 -C 20 alkyl or C 10 -C 20 alkyl amidopropyl, R 2 and R 3 are each alkyl or hydroxyalkyl radicals having from 1 to 3 carbon atoms, R 4 is an alkylene or hydroxyalkylene radical having from 1 to 4 carbons and X is a CO 2 -anion; and (d) an alkaline pH modifying substance in an amount sufficient to adjust the pH value of the composition to within a range of about 3.0-7.0; (e) wherein the higher (alkyl)-betaine surfactant in combination with the organophosphonic acid generates effective cleaning capability without substantial likelihood of discoloration.
Claim 3
Dependent Claim
13 words
The aqueous acidic composition of claim 1 wherein said alkylbetaine is lauramidopropyl betaine.
Claim 4
Dependent Claim
19 words
The aqueous acidic composition of claim 2 wherein said composition includes from about 0.8-1.5% by weight of lauramidopropyl betaine.
Claim 5
Dependent Claim
27 words
The aqueous acidic composition of claim 3, which further comprises about 0.5%-10% by weight of a water-soluble acrylic acid polymer having a molecular weight of about 1,000-15,000.
Claim 6
Dependent Claim
29 words
The aqueous acidic composition of claim 4 wherein said composition includes about 1.0-5.0% by weight of said organophosphonic acid and about 1.0-5.0% by weight of said acrylic acid polymer.
Claim 7
Dependent Claim
25 words
The aqueous acidic composition of claim 5 wherein said pH modifying substance is present in an amount effective to adjust the pH to about 3.5-4.5.
Claim 8
Dependent Claim
15 words
The aqueous acidic composition of claim 6 wherein said pH modifying substance comprises sodium hydroxide.
Claim 9
Dependent Claim
15 words
The aqueous acidic composition of claim 6 wherein said organophosphonic acid comprises aminotri(methylene phosphonic acid).
Claim 10
Dependent Claim
22 words
The aqueous acidic composition of claim 8 wherein said acrylic acid polymer comprises polyacrylic acid having a molecular weight of about 1,000-10,000.
Claim 11
Dependent Claim
146 words
An aqueous acidic composition for cleaning fiberglass comprising: (a) water; (b) about 0.5-10% by weight of a water-soluble acrylic acid polymer having a molecular weight of about 1,000-10,000; (c) about 0.5-3.0% by weight of a higher (alkyl)-betaine surfactant having the structural formula ##STR3## wherein R 1 is C 10 -C 20 alkyl or C 10 -C 20 alkyl amidopropyl, R 2 and R 3 are each alkyl or hydroxyalkyl radicals having from 1 to 3 carbon atoms, R 4 is an alkylene or hydroxyalkylene radical having from 1 to 4 carbons and X is a CO 2 -anion; and (d) an alkaline pH modifying substance in an amount sufficient to adjust the pH value of the composition to within a range of about 3.0-7.0; (e) wherein the higher (alkyl)-betaine surfactant in combination with the acrylic acid polymer generates effective cleaning capability without substantial likelihood of discoloration.
Claim 12
Dependent Claim
146 words
An aqueous acidic composition for cleaning fiberglass comprising: (a) water; (b) about 0.5-10% by weight of a water-soluble acrylic acid polymer having a molecular weight of about 1,000-10,000; (c) about 0.5-3.0% by weight of a higher (alkyl)-betaine surfactant having the structural formula ##STR3## wherein R 1 is C 10 -C 20 alkyl or C 10 -C 20 alkyl amidopropyl, R 2 and R 3 are each alkyl or hydroxyalkyl radicals having from 1 to 3 carbon atoms, R 4 is an alkylene or hydroxyalkylene radical having from 1 to 4 carbons and X is a CO 2 -anion; and (d) an alkaline pH modifying substance in an amount sufficient to adjust the pH value of the composition to within a range of about 3.0-7.0; (e) wherein the higher (alkyl)-betaine surfactant in combination with the acrylic acid polymer generates effective cleaning capability without substantial likelihood of discoloration.
Claim 13
Dependent Claim
13 words
The aqueous acidic composition of claim 10 wherein said alkylbetaine is lauramidopropyl betaine.
Claim 14
Dependent Claim
20 words
The aqueous acidic composition of claim 11 wherein said composition includes from about 0.8-1.5% by weight of said lauramidopropyl betaine.
Claim 15
Dependent Claim
19 words
The aqueous acidic composition of claim 12 further comprising about 0.5-10% by weight of a water-soluble organic phosphonic acid.
Claim 16
Dependent Claim
29 words
The aqueous acidic composition of claim 13 wherein said composition includes about 1.0-5.0% by weight of said organophosphonic acid and about 1.0-5.0% by weight of said acyrlic acid polymer.
Claim 17
Dependent Claim
26 words
The aqueous acidic composition of claim 14 wherein said pH modifying substance is added in an amount sufficient to adjust the pH value to about 3.5-4.5.
Claim 18
Dependent Claim
15 words
The aqueous acidic compostion of claim 15 wherein said pH modifying substance comprises sodium hydroxide.
Claim 19
Dependent Claim
19 words
The aqueous acidic composition for cleaning fiberglass according to claim 16 wherein said organophosphonic acid comprises aminotri(methylene phosphonic acid).
Claim 20
Dependent Claim
97 words
An aqueous acidic composition for cleaning fiberglass comprising: (a) water; (b) about 0.5-10% by weight of a water-soluble organophosphonic acid; (c) about 0.5-10% by weight of a water-soluble acrylic acid polymer having a molecular weight of about 1,000-15,000; (d) about 0.5-3.0% by weight of lauramidopropyl betaine; and (e) an alkaline pH modifying substance in an amount sufficient to adjust the pH of the composition to a value within the range of about 3.0-7.0; (f) wherein the lauramidopropyl betaine in combination with the organophosphonic acid and acrylic acid polymer generates effective cleaning capability without substantial likelihood of discoloration.
Claim 21
Dependent Claim
97 words
An aqueous acidic composition for cleaning fiberglass comprising: (a) water; (b) about 0.5-10% by weight of a water-soluble organophosphonic acid; (c) about 0.5-10% by weight of a water-soluble acrylic acid polymer having a molecular weight of about 1,000-15,000; (d) about 0.5-3.0% by weight of lauramidopropyl betaine; and (e) an alkaline pH modifying substance in an amount sufficient to adjust the pH of the composition to a value within the range of about 3.0-7.0; (f) wherein the lauramidopropyl betaine in combination with the organophosphonic acid and acrylic acid polymer generates effective cleaning capability without substantial likelihood of discoloration.
Claim 22
Dependent Claim
29 words
The aqueous acidic composition of claim 18 wherein said composition includes about 1.0-5.0% by weight of said phosphonic acid and about 1.0-5.0% by weight of said acrylic acid polymer.
Claim 23
Dependent Claim
19 words
The aqueous acid composition of claim 18 wherein said composition includes about 0.8-1.5% by weight of said lauramidopropyl betaine.
Claim 24
Dependent Claim
29 words
The aqueous acidic composition of claim 20 wherein said composition includes about 3.5-6.0% by weight of said organophosphonic acid and about 3.5-6.0% by weight of said acrylic acid polymer.
Claim 25
Dependent Claim
25 words
The aqueous acidic composition of claim 21 wherein said pH modifying substance is added in an amount sufficient to adjust the pH to about 3.5-4.5.
Claim 26
Dependent Claim
15 words
The aqueous acidic composition of claim 22 wherein said pH modifying substance comprises sodium hydroxide.
Claim 27
Dependent Claim
15 words
The aqueous acidic composition of claim 23 wherein said organophosphonic acid comprises aminotri(methylene phosphonic acid).
Claim 28
Dependent Claim
23 words
The aqueous acidic composition of claim 24 wherein said acrylic acid polymer comprises a polyacrylic acid having a molecular weight of about 1,000-10,000.
Claim 29
Dependent Claim
94 words
An aqueous acidic composition for cleaning fiberglass comprising (a) water; (b) about 3.5-6.0% by weight of a water-soluble organophosphonic acid; (c) about 3.5-6% by weight of a polyacrylic acid having a molecular weight of about 1,000-10,000; (d) about 0.8-1.5% by weight of lauramidopropyl betaine; and (e) an alkaline pH modifying substance in an amount sufficient to adjust the pH value of the composition to within a range of about 3.0-4.5; (f) wherein the lauramidopropyl betaine in combination with the organophosphonic acid and acrylic acid polymer generates effective cleaning capability without substantial likelihood for discoloration.
Claim 30
Dependent Claim
94 words
An aqueous acidic composition for cleaning fiberglass comprising (a) water; (b) about 3.5-6.0% by weight of a water-soluble organophosphonic acid; (c) about 3.5-6% by weight of a polyacrylic acid having a molecular weight of about 1,000-10,000; (d) about 0.8-1.5% by weight of lauramidopropyl betaine; and (e) an alkaline pH modifying substance in an amount sufficient to adjust the pH value of the composition to within a range of about 3.0-4.5; (f) wherein the lauramidopropyl betaine in combination with the organophosphonic acid and acrylic acid polymer generates effective cleaning capability without substantial likelihood for discoloration.
Claim 31
Dependent Claim
19 words
An aqueous acid composition for cleaning fiberglass according to claim 26 wherein the pH is adjusted with sodium hydroxide.
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) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |