US4080305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain cleaners with hair-disintegrating properties
Assignee: Henkel AG and Co KGaA
•
Filing: 1976-05-21
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Granted: 1978-03-21
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Expires: 1996-05-21
Abstract
Abstract Drain-pipe cleaning compositions of the sodium hydroxide -- aluminum chip -- sodium nitrate type possess the added capability of dissolving or disintegrating proteinaceous fibrous material, without impairment of their capability of removing grease deposits, when they have a small content of a water-soluble glycoluril or a glycoluril derivative. The compositions are specially useful for freeing drain-pipes which are clogged by fatty deposits containing animal hair.
Inventors
- 👤 Berndt-Dieter Holdt
- 👤 Hans Dieter Soldanski
- 👤 Gunter Wischberg
- 👤 Christian Hase
- 👤 Dieter Kuhling
- 👤 Harald Schnegelberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:49
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/06; C11D3/00; C11D3/0005; C11D3/0052; C11D7/10; C11D7/105; C11D7/22; C11D7/32; C11D7/3272
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
133 words
A composition adapted to unclog drain-pipes blocked by deposits of fatty material contains fibrous proteinaceous material consisting essentially of 50% to 80% by weight of an alkali metal hydroxide as latent saponifying and heating agent, 4% to 10% by weight of particles of a light metal of atomic number 12-13 as latent agent providing hydrogen gas in amount effective to loosen said deposits 15% to 40% by weight of an alkali metal or alkali earth metal nitrate as latent oxidizing agent for said hydrogen, and a small but effective amount, in the range of about 0.5% - 5% based on the weight of said composition, of a compound selected from the group consisting of glycoluril, halogenated glycolurils, glycolurils acylated with lower alkanoic acids and mixtures thereof as disintegrating agent for said animal hair.
Claim 2
Dependent Claim
133 words
A composition adapted to unclog drain-pipes blocked by deposits of fatty material contains fibrous proteinaceous material consisting essentially of 50% to 80% by weight of an alkali metal hydroxide as latent saponifying and heating agent, 4% to 10% by weight of particles of a light metal of atomic number 12-13 as latent agent providing hydrogen gas in amount effective to loosen said deposits 15% to 40% by weight of an alkali metal or alkali earth metal nitrate as latent oxidizing agent for said hydrogen, and a small but effective amount, in the range of about 0.5% - 5% based on the weight of said composition, of a compound selected from the group consisting of glycoluril, halogenated glycolurils, glycolurils acylated with lower alkanoic acids and mixtures thereof as disintegrating agent for said animal hair.
Claim 3
Dependent Claim
24 words
A composition according to claim 1 wherein said compound is selected from the group consisting of glycoluril, dichloroglycoluril, 1,4-diacetylglycoluril, 1,4-dipropionylglycoluril, tetraacetylglycoluril, tetrapropionylglycoluril, and tetrachloroglycoluril.
Claim 4
Dependent Claim
12 words
A composition according to claim 1 wherein said compound is glycoluril itself.
Claim 5
Dependent Claim
11 words
A composition according to claim 1 wherein said compound is tetraacetylglycoluril.
Claim 6
Dependent Claim
11 words
A composition according to claim 1 wherein said compound is dichloroglycoluril.
Claim 7
Dependent Claim
11 words
A composition according to claim 1 wherein said compound is 1,4-dipropionylglycoluril.
Claim 8
Dependent Claim
62 words
A composition for cleaning drains clogged with a fatty mixture containing animal hairs consisting essentially of: ______________________________________
Components % By Weight
______________________________________
Sodium hydroxide 50-80
Aluminum chips 4 - 10
Sodium nitrate 15 - 40
A compound selected from the
group consisting of glyco-
luril, halogenated glyco-
lurils, and glycolurils acy-
lated with acyls of lower
alkanoic acids 0.5 - 5
______________________________________
Claim 9
Dependent Claim
62 words
A composition for cleaning drains clogged with a fatty mixture containing animal hairs consisting essentially of: ______________________________________
Components % By Weight
______________________________________
Sodium hydroxide 50-80
Aluminum chips 4 - 10
Sodium nitrate 15 - 40
A compound selected from the
group consisting of glyco-
luril, halogenated glyco-
lurils, and glycolurils acy-
lated with acyls of lower
alkanoic acids 0.5 - 5
______________________________________
Claim 10
Dependent Claim
12 words
A composition according to claim 7 wherein the compound is glycoluril itself.
Claim 11
Dependent Claim
11 words
A composition according to claim 7 wherein the compound is tetraacetylglycoluril.
Claim 12
Dependent Claim
60 words
A method for cleaning a drain blocked by a plug of fatty material containing fibrous proteinaceous material, which comprises mixing one part of a composition according to claim 1 with about 5 to 20 parts by weight of water, and then pouring the resulting mixture into said drain at a temperature in the range of 50° C. to 80° C.
References Cited (Backward Citations)
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Cited
US1129056A
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US3715184A
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US3775332A
Cited
US3919102A
Cited
US3968048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |