US4231887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zeolite agglomerates for detergent formulations
Assignee: Katalistiks International Inc
•
Filing: 1979-06-26
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Granted: 1980-11-04
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Expires: 1999-06-26
Abstract
Abstract Zeolite agglomerates which when admixed with conventional laundry detergent formulations remain uniformly distributed and upon contact with hard water rapidly disperse and sequester the hardness cations thereof are comprised of zeolite crystals in a matrix of an ethoxylated linear alcohol and sodium citrate.
Inventors
- 👤 Arthur F. Denny
- 👤 John D. Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:26
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2086; C11D1/00; C11D1/66; C11D1/72; C11D1/825; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/128
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
139 words
Zeolite-containing agglomerate particles suitable for incorporation into detergent formulations which comprise (a) crystals of a three-dimensional zeolite of the molecular sieve type containing ion-exchangeable alkali metal cations, said zeolite being contained in a combined matrix of an intimate mixture of (b) at least one or a mixture of two or more ethoxylated alcohols having the formula R--O--(CH 2 --CH 2 --O) n H wherein "R" is a primary or secondary alkyl group containing from 9 to 18 carbon atoms and "n" is a whole number of from 3 to 12 inclusive, said ethoxylated alcohol being present in an amount of 15 to 50 parts by weight per 100 parts by weight of zeolite crystals (hydrated), and (c) sodium citrate, as the dihydrate, in an amount of 8 to 25 parts by weight per 100 parts by weight of zeolite.
Claim 2
Dependent Claim
139 words
Zeolite-containing agglomerate particles suitable for incorporation into detergent formulations which comprise (a) crystals of a three-dimensional zeolite of the molecular sieve type containing ion-exchangeable alkali metal cations, said zeolite being contained in a combined matrix of an intimate mixture of (b) at least one or a mixture of two or more ethoxylated alcohols having the formula R--O--(CH 2 --CH 2 --O) n H wherein "R" is a primary or secondary alkyl group containing from 9 to 18 carbon atoms and "n" is a whole number of from 3 to 12 inclusive, said ethoxylated alcohol being present in an amount of 15 to 50 parts by weight per 100 parts by weight of zeolite crystals (hydrated), and (c) sodium citrate, as the dihydrate, in an amount of 8 to 25 parts by weight per 100 parts by weight of zeolite.
Claim 3
Dependent Claim
48 words
Agglomerate particles according to claim 1 wherein the ethoxylated alcohol is present in an amount of about 25 parts per 100 parts by weight of zeolite and the sodium citrate is present in an amount of about 12 parts by weight per 100 parts by weight of zeolite.
Claim 4
Dependent Claim
14 words
Agglomerate particles according to claim 1 wherein the zeolite constituent comprises sodium zeolite A.
Claim 5
Dependent Claim
14 words
Agglomerate particles according to claim 1 wherein the zeolite constituent comprises sodium zeolite X.
Claim 6
Dependent Claim
21 words
Agglomerate particles according to claim 1 wherein the zeolite constituent comprises a mixture of sodium zeolite A and sodium zeolite X.
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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) | 1983-11-04 | 1984-05-05 | 1984-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-04 | 1988-05-05 | 1988-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-04 | 1992-05-05 | 1992-11-04 | $7700.00 | Window Closed / Lapsed |