US4081395A
Expired / Lapsed
US
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Alkaline detergent compositions
Assignee: Pennwalt Corp
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Filing: 1976-03-25
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Granted: 1978-03-28
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Expires: 1996-03-25
Abstract
Abstract This invention discloses alkaline detergent compositions for cleaning solid surfaces including returnable food and beverage containers such as are used for milk, ice cream mixes, soft drinks and similar materials. The alkaline detergent compositions are particularly adapted for cleaning bottles fabricated from polycarbonate resins without damaging the polycarbonate but are also useful on glass, polypropylene and polyethylene surfaces. Granular detergents, aqueous concentrates and aqueous use solutions are described. The alkaline detergents can be used in mechanical spray or soak-tank washers.
Inventors
- 👤 Charles Bullick Talley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:17
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/04; C11D1/08; C11D3/00; C11D3/02; C11D3/04; C11D3/08; C11D3/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
143 words
The granular concentrate for dissolving in water to clean soiled surfaces made from polycarbonate, polypropylene, polyethylene or glass, said concentrate consisting essentially of the following ingredients expressed as percent by weight: Alkali metal silicate selected from the group consisting of orthosilicates and metasilicates - 5 to 28, Alkali metal phosphate - 5 to 27, Alkali metal methyl naphthalene sulfonate - 1 to 15, Sodium bicarbonate - 5 to 15, Defoaming agent - 0 to 6, Detergent builder selected from the group consisting of sodium sulfate, sodium chloride, sodium sesquicarbonate, sodium sesquisilicate, sodium carbonate, sodium bicarbonate, and mixtures thereof - 83 to 0. and C-21 dicarboxylic detergent represented by the formula ##STR2## in which one X is hydrogen while the second X is carboxylic, "in which R can be COOH and CH 2 OSO 3 H and their alkali metal salts" 1 to 9.
Claim 2
Dependent Claim
143 words
The granular concentrate for dissolving in water to clean soiled surfaces made from polycarbonate, polypropylene, polyethylene or glass, said concentrate consisting essentially of the following ingredients expressed as percent by weight: Alkali metal silicate selected from the group consisting of orthosilicates and metasilicates - 5 to 28, Alkali metal phosphate - 5 to 27, Alkali metal methyl naphthalene sulfonate - 1 to 15, Sodium bicarbonate - 5 to 15, Defoaming agent - 0 to 6, Detergent builder selected from the group consisting of sodium sulfate, sodium chloride, sodium sesquicarbonate, sodium sesquisilicate, sodium carbonate, sodium bicarbonate, and mixtures thereof - 83 to 0. and C-21 dicarboxylic detergent represented by the formula ##STR2## in which one X is hydrogen while the second X is carboxylic, "in which R can be COOH and CH 2 OSO 3 H and their alkali metal salts" 1 to 9.
Claim 3
Dependent Claim
32 words
The detergent concentrate of claim 1 in which the alkali metal phosphate is selected from the group consisting of sodium tripolyphosphate tetrasodium pyrophosphate, tetrapotassium pyrophosphate, trisodium phosphate, sodium hexametaphosphate and mixtures thereof.
Claim 4
Dependent Claim
38 words
The granular detergent concentrate of claim 1 to which there is added from about 0.5 to 2 parts by weight of an antistatic agent to about 99.5 to 98 parts by weight of the concentrate of claim 1.
Claim 5
Dependent Claim
38 words
The granular detergent concentrate of claim 1 to which there is added about 0.5 to 5 parts by weight of a surface active agent to about 99.5 to 95 parts by weight of the concentrate of claim 1.
Claim 6
Dependent Claim
36 words
The granular detergent concentrate of claim 1 to which there is added about 1 to 3 parts by weight of a dichloroisocyanurate to about 99 to 97 parts by weight of the concentrate of claim 1.
Claim 7
Dependent Claim
37 words
The granular detergent concentrate of claim 1 to which there is added about 5 to 12 parts by weight of chlorinated trisodium phosphate to about 95 to 88 parts by weight of the concentrate of claim 1.
Claim 8
Dependent Claim
23 words
The aqueous detergent solution consisting essentially of water and from about 0.25 to 40 percent by weight of the concentrate of claim 1.
Claim 9
Dependent Claim
144 words
The granular concentrate for dissolving in water to clean soiled surfaces made from polycarbonate, polypropylene, polyethylene or glass, said concentrate consisting essentially of the following ingredients expressed as percent by weight: Alkali metal silicate selected from the group consisting of orthosilicates and metasilicates - 10 to 20, Alkali metal phosphate - 10 to 20, Alkali metal methyl naphthalene sulfonate - 5 to 10, Sodium bicarbonate - 5 to 10, Defoaming agent - 3 to 5, Detergent builder selected from the group consisting of sodium sulfate, sodium chloride, sodium sesquicarbonate, sodium sesquisilicate, sodium carbonate, sodium bicarbonate and mixtures thereof - 62 to 28, and C-21 dicarboxylic detergent represented by the formula ##STR3## in which one X is hydrogen while the second X is carboxylic, "in which R can be COOH and CH 2 OSO 3 H and their alkali metal salts" - 5 to 7.
Claim 10
Dependent Claim
144 words
The granular concentrate for dissolving in water to clean soiled surfaces made from polycarbonate, polypropylene, polyethylene or glass, said concentrate consisting essentially of the following ingredients expressed as percent by weight: Alkali metal silicate selected from the group consisting of orthosilicates and metasilicates - 10 to 20, Alkali metal phosphate - 10 to 20, Alkali metal methyl naphthalene sulfonate - 5 to 10, Sodium bicarbonate - 5 to 10, Defoaming agent - 3 to 5, Detergent builder selected from the group consisting of sodium sulfate, sodium chloride, sodium sesquicarbonate, sodium sesquisilicate, sodium carbonate, sodium bicarbonate and mixtures thereof - 62 to 28, and C-21 dicarboxylic detergent represented by the formula ##STR3## in which one X is hydrogen while the second X is carboxylic, "in which R can be COOH and CH 2 OSO 3 H and their alkali metal salts" - 5 to 7.
Claim 11
Dependent Claim
32 words
The detergent concentrate of claim 8 in which the alkali metal phosphate is selected from the group consisting of sodium tripolyphosphate tetrasodium pyrophosphate, tetrapotassium pyrophosphate, trisodium phosphate, sodium hexametaphosphate and mixtures thereof.
Claim 12
Dependent Claim
23 words
The aqueous detergent solution consisting essentially of water and from about 0.25 to 40 percent by weight of the concentrate of claim 8.
Claim 13
Dependent Claim
144 words
The granular concentrate for dissolving in water to clean soiled surfaces made from polycarbonate, polypropylene, polyethylene or glass, said concentrate consisting essentially of the following ingredients expressed as percent by weight: Alkali metal silicate selected from the group consisting of orthosilicates and metasilicates - 10 to 20, Alkali metal phosphate - 15 to 27, Alkali metal methyl naphthalene sulfonate - 2 to 5, Sodium bicarbonate - 5 to 10, Defoaming agent - 4 to 6, Detergent builder selected from the group consisting of sodium sulfate, sodium chloride, sodium sesquicarbonate, sodium sesquisilicate, sodium carbonate, sodium bicarbonate, and mixtures thereof - 63 to 30, and C-21 dicarboxylic detergent represented by the formula ##STR4## in which one X is hydrogen while the second X is carboxylic, "in which R can be COOH and CH 2 OSO 3 H and their alkali metal salts" - 1 to 2.
Claim 14
Dependent Claim
144 words
The granular concentrate for dissolving in water to clean soiled surfaces made from polycarbonate, polypropylene, polyethylene or glass, said concentrate consisting essentially of the following ingredients expressed as percent by weight: Alkali metal silicate selected from the group consisting of orthosilicates and metasilicates - 10 to 20, Alkali metal phosphate - 15 to 27, Alkali metal methyl naphthalene sulfonate - 2 to 5, Sodium bicarbonate - 5 to 10, Defoaming agent - 4 to 6, Detergent builder selected from the group consisting of sodium sulfate, sodium chloride, sodium sesquicarbonate, sodium sesquisilicate, sodium carbonate, sodium bicarbonate, and mixtures thereof - 63 to 30, and C-21 dicarboxylic detergent represented by the formula ##STR4## in which one X is hydrogen while the second X is carboxylic, "in which R can be COOH and CH 2 OSO 3 H and their alkali metal salts" - 1 to 2.
Claim 15
Dependent Claim
32 words
The detergent concentrate of claim 11 in which the alkali metal phosphate is selected from the group consisting of sodium tripolyphosphate, tetrasodium pyrophosphate, tetrapotassium pyrophosphate, trisodium phosphate, sodium hexametaphosphate and mixtures thereof.
Claim 16
Dependent Claim
23 words
The aqueous detergent solution consisting essentially of water and from about 0.25 to 40 percent by weight of the concentrate of claim 7.
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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) | 1981-03-27 | 1981-09-26 | 1982-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-27 | 1985-09-26 | 1986-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-27 | 1989-09-26 | 1990-03-28 | $7700.00 | Window Closed / Lapsed |