US4303544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adducts of alcohols and olefin oxides as biodegradable and low-foaming tensides useful in detergents
Assignee: Huels AG
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Filing: 1980-05-05
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Granted: 1981-12-01
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Expires: 2000-05-05
Abstract
Abstract A compound of the formula ##STR1## wherein R is alkyl of 8-22 carbon atoms in the alkyl chain or hydroxyalkyl of 2-22 carbon atoms; and R' and R" each independently is hydrogen or C 1 -C 20 -alkyl provided that R' and R" are not simultaneously hydrogen, and R' and R" in total have 8-20 carbon atoms; and in I, x is 0.5-5 and y is 5-50; and in II, z is freely selectable with the proviso that the sum total of all x for a given z is 0.5-5 and the sum total of all y for a given z is 5-50; and m is 1 or 2.
Inventors
- 👤 Kurt Kosswig
- 👤 Ekkehard Wienhoefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:58
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0026; C07; C07C; C07C41/00; C07C41/01; C07C41/02; C07C41/03; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/10; C07C43/11; C07C43/13; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609; C11D1/00; C11D1/66; C11D1/722; C11D1/825; C11D1/8255
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
118 words
A biodegradable and low-foaming tenside of the formula (I) or (II) ##STR9## wherein when m is 2, R is C 8-22 -divalent alkyl, or when m is 1, R is C 8-22 alkyl or C 2-22 hydroxyalkyl; and R' and R" each independently is hydrogen or C 1 -C 20 -alkyl provided that R' and R" are not simultaneously hydrogen, and R' and R" in total have 8-20 carbon atoms; x is 0.5-5 and y is 5-50; "---" indicates that the individual x units and the individual y units may be attached to the other x and y units in any order; and m is 1 or 2 for formula (I) and m is 1 for formula (II).
Claim 2
Dependent Claim
118 words
A biodegradable and low-foaming tenside of the formula (I) or (II) ##STR9## wherein when m is 2, R is C 8-22 -divalent alkyl, or when m is 1, R is C 8-22 alkyl or C 2-22 hydroxyalkyl; and R' and R" each independently is hydrogen or C 1 -C 20 -alkyl provided that R' and R" are not simultaneously hydrogen, and R' and R" in total have 8-20 carbon atoms; x is 0.5-5 and y is 5-50; "---" indicates that the individual x units and the individual y units may be attached to the other x and y units in any order; and m is 1 or 2 for formula (I) and m is 1 for formula (II).
Claim 3
Dependent Claim
8 words
A compound of claim 1 of Formula (I).
Claim 4
Dependent Claim
16 words
A compound of claim 1 of Formula (I) wherein x is 2-3 and y is 20-30.
Claim 5
Dependent Claim
8 words
A compound of claim 1 of Formula (II).
Claim 6
Dependent Claim
26 words
A compound of claim 1 of Formula (II), wherein the sum total of all x is 2-3 and the sum total of all y is 20-30.
Claim 7
Dependent Claim
38 words
A compound of claim 1, wherein R is C 8-22 -n-alkyl and m is 1, or R is C 8-22 -n-alkyl and m is 2, the two m units being attached to the 1- and 2-carbon atoms respectively.
Claim 8
Dependent Claim
20 words
A compound of claim 1, wherein one of R' and R" is H and the other is C 10-14 alkyl.
Claim 9
Dependent Claim
24 words
A biodegradable and low-foaming tenside of claim 1, wherein 20-80% by weight of the compound is composed of the R--O and x unit portions.
Claim 10
Dependent Claim
7 words
A compound of claim 1 wherein m=1.
Claim 11
Dependent Claim
42 words
A process for preparing a tenside of claim 1 comprising adding a conventional acidic or alkaline alkoxylation catalyst to a compound R(OH) 1-2 having active hydrogen; and reacting this reaction mixture at a suitable temperature with an epoxide ##STR10## and ethylene oxide.
Claim 12
Dependent Claim
35 words
A process of claim 10, whereby a tenside of Formula (I) is prepared, comprising first reacting the mixture of alcohol and catalyst only with the epoxide ##STR11## and thereafter reacting the mixture with ethylene oxide.
Claim 13
Dependent Claim
29 words
A process of claim 10, whereby a tenside of Formula (II) is prepared, comprising simultaneously reacting the mixture of alcohol and catalyst with the epoxide ##STR12## and ethylene oxide.
Claim 14
Dependent Claim
32 words
A process of claim 10, wherein the alcohol component is a fatty alcohol of 8-22 carbon atoms or a mixture thereof, or a 1,2-alkanediol of 8-22 carbon atoms or a mixture thereof.
Claim 15
Dependent Claim
22 words
A process of claim 10, wherein the epoxide component ##STR13## is a 1,2-alkane epoxide of 12-16 carbon atoms or a mixture thereof.
Claim 16
Dependent Claim
20 words
A process of claim 10, wherein the reaction is conducted at 150°-230° C. and under normal pressure or excess pressure.
Claim 17
Dependent Claim
21 words
A detergent composition comprising a tensile effective amount of a compound of claim 1 and an adjuvant conventional in detergent compositions.
Claim 18
Dependent Claim
22 words
The detergent composition of claim 16, which is a dishwasher detergent composition containing said tensides in an amount of 1-3 weight percent.
Claim 19
Dependent Claim
34 words
A method of washing articles in a dishwasher using a dishwasher detergent therein, which comprises subjecting the articles to the mechanical washing action of the dishwasher using the dishwasher detergent of claim 17 therein.
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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) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |