US4325658A
Expired / Lapsed
US
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Silicate compositions and use thereof
Assignee: Imperial Chemical Industries Ltd
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Filing: 1979-11-21
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Granted: 1982-04-20
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Expires: 1999-11-21
Abstract
Abstract A gelling composition useful for soil stabilization comprises water, an alkali metal silicate, an ester, particularly an alkyl alkanoate or one or more diesters of a C2 to C10 dibasic alkanoic acid, and rosin or a rosin ester or salt or a rosin acid or rosin acid ester or salt.
Inventors
- 👤 Brian Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:45
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/40; C09K17/42; C09K17/46; B; B22; B22C; B22C1/00; B22C1/16; B22C1/167
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
91 words
A gelling composition which comprises: (a) 10 to 50 wt% alkali metal silicate (as solid), (b) 1 to 15 wt% of an ester of C 1 to C 6 monobasic alkanoic acid with C 1 to C 5 alkanol or a diester of a C 2 to C 10 dibasic alkanoic acid with a C 1 to C 5 alkanol, (c) 0.01 to 10 wt% of rosin, a rosin ester or salt, or a rosin acid or a rosin acid ester or salt, (d) the balance of the composition being water.
Claim 2
Dependent Claim
91 words
A gelling composition which comprises: (a) 10 to 50 wt% alkali metal silicate (as solid), (b) 1 to 15 wt% of an ester of C 1 to C 6 monobasic alkanoic acid with C 1 to C 5 alkanol or a diester of a C 2 to C 10 dibasic alkanoic acid with a C 1 to C 5 alkanol, (c) 0.01 to 10 wt% of rosin, a rosin ester or salt, or a rosin acid or a rosin acid ester or salt, (d) the balance of the composition being water.
Claim 3
Dependent Claim
36 words
A gelling composition according to claim 1 in which the diester comprises a diester of succinic, adipic or glutaric acid or a mixture of diesters of two of these three or all of these three acids.
Claim 4
Dependent Claim
27 words
A gelling composition according to claim 1 in which the rosin ester or rosin acid ester is the ester of a C 1 to C 5 alkanol.
Claim 5
Dependent Claim
36 words
A gelling composition according to claim 1 in which the rosin salt or rosin acid salt is an alkali metal salt, an alkaline earth metal salt, a zinc salt, an aluminum salt or an amine salt.
Claim 6
Dependent Claim
26 words
A gelling composition according to claim 1 in which the rosin or rosin acid has been modified by partial or complete hydrogenation or by partial dehydrogenation.
Claim 7
Dependent Claim
40 words
A gelling composition according to claim 1 in which the alkali metal silicate is a sodium silicate or polysilicate and the molar ratio of SiO 2 :Na 2 O in the sodium silicate is in the range 2.0 to 5.0.
Claim 8
Dependent Claim
98 words
A gelling composition according to claim 1 which comprises: (a) 10 to 50 wt % sodium silicate (as solid) with a molar ratio SiO 2 :Na 2 O in the range 2.0 to 5.0; (b) 1 to 15 wt % of ethyl acetate, isopropyl acetate or a mixture of the methyl and/or ethyl diesters of two or three acids selected from the group consisting of adipic, succinic and glutaric acids; (c) 0.01 to 10 wt % rosin or an ester of rosin with a C 1 to C 5 alkanol; (d) the balance of the composition being water.
Claim 9
Dependent Claim
32 words
A method of stabilising the ground or of sealing a surface or of forming a foundry sand mould by contacting the ground, surface or sand with a composition according to claim 7.
Claim 10
Dependent Claim
56 words
A mixture for use in forming a composition according to claim 7 which comprises a solution of rosin or an ester of rosin with a C 1 to C 5 alkanol in a mixture of the methyl and/or ethyl diesters of two or three acids selected from the group consisting of adipic, succinic and glutaric acids.
References Cited (Backward Citations)
GB168174A
Cited
US2061509A
Cited
US2448624A
Cited
US3012405A
Cited
GB1122308A
Cited
GB1159400A
Cited
US3558506A
Cited
GB1352997A
Cited
US3705107A
Cited
GB1359433A
Cited
US4072019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-19 | 1985-10-19 | 1986-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-19 | 1989-10-19 | 1990-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-19 | 1993-10-19 | 1994-04-20 | $7700.00 | Window Closed / Lapsed |