US3926830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent composition having polymer bonded indicator
Assignee: Dainichiseika Color and Chemicals Mfg Co Ltd
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Filing: 1973-03-05
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Granted: 1975-12-16
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Expires: 1993-03-05
Abstract
Abstract A detergent composition has been formed by the combination of a detergent and a pH indicative polymer, which is prepared by bonding a polymer to a pH indicator, such as phthalein indicator, sulfophthalein indicator, azo indicator, or the like. The indicator is condensed or addition polymerized onto the polymer or with the monomer to obtain a pH indicative polymer which can be used for indicating any decrease in the activity of the detergent.
Inventors
- 👤 Shojiro Horiguchi
- 👤 Michiei Nakamura
- 👤 Keiji Nakajima
- 👤 Yoshio Seino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:47
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/10; C09B69/103; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/40
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF A SYNTHETIC ORGANIC DETERGENT SELECTED FROM THE GROUP CONSISTING OF ANIONIC, NONIONIC, CATIONIC AND AMPHOTERIC SURFACE ACTIVE AGENTS AND MIXTURES THEREOF AND 0.1-50% BY WEIGHT OF APH INDICATIVE POLYMER, BASED ON THE WEIGHT OF SAID DETERGENT, WHEREIN SAID PH INDICATIVE POLYMER CONSISTS OF A PH INDICATOR BONDED TO A POLYMER AND WHICH IS SOLUBLE OR DISPERSABLE IN AN AQUEOUS SOLUTION OF THE DETERGENT.
Claim 2
Dependent Claim
69 words
A DETERGENT COMPOSITION CONSISTING ESSENTIALLY OF A SYNTHETIC ORGANIC DETERGENT SELECTED FROM THE GROUP CONSISTING OF ANIONIC, NONIONIC, CATIONIC AND AMPHOTERIC SURFACE ACTIVE AGENTS AND MIXTURES THEREOF AND 0.1-50% BY WEIGHT OF APH INDICATIVE POLYMER, BASED ON THE WEIGHT OF SAID DETERGENT, WHEREIN SAID PH INDICATIVE POLYMER CONSISTS OF A PH INDICATOR BONDED TO A POLYMER AND WHICH IS SOLUBLE OR DISPERSABLE IN AN AQUEOUS SOLUTION OF THE DETERGENT.
Claim 3
Dependent Claim
25 words
The detergent composition according to claim 1, wherein the pH indicative polymer is dispersible in a colloidal form in an aqueous solution of the detergent.
Claim 4
Dependent Claim
50 words
The detergent composition according to claim 1, wherein said detergent composition contains a detergent builder selected from the group consisting of sodium sulfate, sodium metasilicate, sodium sesquisilicate, sodium orthosilicate, sodium carbonate, sodium bicarbonate, sodium orthophosphate, sodium tripolyphosphate, sodium hexametaphosphate, sodium chloride, carboxymethyl cellulose, methyl cellulose, hydroxyethyl cellulose, ethylenediamine tetraacetic acid.
Claim 5
Dependent Claim
18 words
The detergent composition according to claim 1, wherein said pH indicative polymer is in the form of granules.
Claim 6
Dependent Claim
22 words
The detergent composition according to claim 1, wherein said pH indicator is a phthalein indicAtor, a sulfonphthalein indicator, or an azo indicator.
Claim 7
Dependent Claim
41 words
A detergent composition according to claim 1, wherein the pH indicative polymer has the polymer component bonded to the pH indicator component, and the polymer component is formed by a polymer or polymerizable monomer having a condensable or addition polymerizable radical.
Claim 8
Dependent Claim
29 words
The detergent composition according to claim 1, wherein the pH indicator component is in a range of about 50 to 0.1 percent by weight to said pH indicative polymer.
References Cited (Backward Citations)
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US3042621A
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US3094373A
Cited
US3467642A
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |