Patent US3816318A successfully refreshed from Google Patents.
US3816318A
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Detergent
Assignee: HENTSCHEL W SW
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Filing: 1972-06-16
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Granted: 1974-06-11
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Expires: 1992-06-16
Abstract
Abstract Detergent compositions containing monoesters produced through esterifying dibasic or polybasic organic aliphatic carboxylic acids and/or dibasic or polybasic aromatic carboxylic acids with alcohols. These monoesters replace in the detergent previously used phosphates which caused eutrofication and endangered the ecology.
Inventors
- 👤 G Hentschel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:08
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2093
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
14 words
Detergent compositions as claimed in claim 1, wherein said carboxylic acids are oxycarboxylic acids.
Claim 2
Dependent Claim
24 words
Detergent compositions as claimed in claim 1, wherein the free carboxylic groups of said monoesters are at least partly neutralized by means of alkalis.
Claim 3
Dependent Claim
10 words
Detergent compositions as claimed in claim 1, which contain monoesters.
Claim 4
Dependent Claim
13 words
Detergent compositions as claimed in claim 1, wherein said monoesters are a mixture.
Claim 5
Dependent Claim
21 words
Detergent compositions as claimed in claim 5, wherein said monoesters are a mixture together with the salts of said carboxylic acids.
Claim 6
Dependent Claim
19 words
Detergent compositions as claimed in claim 5, wherein said monoesters are a mixture together with said free carboxylic acids.
Claim 7
Dependent Claim
22 words
Detergent compositions as claimed in claim 1, additionally containing polyvalent alcohols in amounts up to 25 percent calculated on said carboxylic acids.
Claim 8
Dependent Claim
21 words
Detergent compositions as claimed in claim 8, wherein said polyvalent alcohols are sorbitol, mannitol, pentaerythritol, trimethyl propanol, trimethyl ethanol, hexanetriol, butane-1.2.4-triol.
Claim 9
Dependent Claim
20 words
The detergent composition of claim 8, wherein the polyvalent alcohols are present in amounts of between 0.5 and 8 percent.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |