Patent US4279547A successfully refreshed from Google Patents.
US4279547A
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Bentonite-gelled oil waterproofing composition
Assignee: Amcol International Corp
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Filing: 1979-11-01
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Granted: 1981-07-21
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Expires: 1999-11-01
Abstract
Abstract A bentonite composition useful for preventing a flow of water through a structure is disclosed. The composition has substantially all of the bentonite in non-hydrated form by dispersing the bentonite throughout a non-aqueous gel formed from a non-aqueous liquid and a suitable gelling agent for the liquid to form a cohesive mass capable of adhering to a structure while maintaining a desired, cohesive form. The composition can be made into sheets, rods, tubes and the like. For example, the composition can be applied to one side of a water permeable cellulosic fiber containing sheet and the composition side of the sheet secured over an area of potential water flow.
Inventors
- 👤 Arthur G. Clem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:59
CPC Classifications
E; E02; E02D; E02D19/00; E02D19/06; E02D19/12; E02D19/16; C; C09; C09D; C09D5/00; C09D5/34; C09K; C09K17/00; C09K17/40; C09K17/42; E02D31/00; E02D31/02; Y; Y10; Y10S; Y10S106/00; Y10S106/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
87 words
A bentonite composition useful for preventing a flow of water through a structure said composition having substantially all of the bentonite contained therein in non-hydrated form comprising bentonite, in an amount of at least 20% by weight of the total composition, dispersed throughout a non-aqueous gel formed from a non-aqueous liquid and a suitable gelling agent for said liquid said gelling agent included in said composition in an amount sufficient to form a cohesive mass capable of adhering to said structure while maintaining a desired, cohesive form.
Claim 2
Dependent Claim
87 words
A bentonite composition useful for preventing a flow of water through a structure said composition having substantially all of the bentonite contained therein in non-hydrated form comprising bentonite, in an amount of at least 20% by weight of the total composition, dispersed throughout a non-aqueous gel formed from a non-aqueous liquid and a suitable gelling agent for said liquid said gelling agent included in said composition in an amount sufficient to form a cohesive mass capable of adhering to said structure while maintaining a desired, cohesive form.
Claim 3
Dependent Claim
76 words
A bentonite composition as defined in claim 1 wherein said non-aqueous liquid comprises an organic liquid and wherein said composition comprises a gel containing 40-85% organic liquid, based on the total weight of organic liquid plus gelling agent; 15-60% gelling agent for said organic liquid, based on the total weight of organic liquid plus gelling agent; and bentonite in an amount sufficient to provide an effective water seal across said structure when said bentonite is hydrated.
Claim 4
Dependent Claim
28 words
A bentonite composition as defined in claim 1 wherein said bentonite and said gelling agent are present in an amount sufficient to form a self cohesive, pasty mass.
Claim 5
Dependent Claim
21 words
A bentonite composition as defined in claim 1 wherein said bentonite comprises 20% to 75% by weight of the total composition.
Claim 6
Dependent Claim
26 words
A bentonite composition as defined in claim 1 wherein said non-aqueous liquid and said gelling agent are added in a weight ratio of 1:4 to 4:1.
Claim 7
Independent Claim
76 words
A method of manufacturing a gelled bentonite composition having substantially all of the bentonite contained therein in a non-gelled, unswelled form comprising: mixing a non-aqueous liquid with a gelling agent capable of gelling said liquid in an amount sufficient to gel said non-aqueous liquid to form a non-aqueous gel; mixing with said gel bentonite particles in an amount of at least 20% by weight of the total composition to form a cohesive mass of bentonite-containing gel.
Claim 8
Independent Claim
76 words
A method of manufacturing a gelled bentonite composition having substantially all of the bentonite contained therein in a non-gelled, unswelled form comprising: mixing a non-aqueous liquid with a gelling agent capable of gelling said liquid in an amount sufficient to gel said non-aqueous liquid to form a non-aqueous gel; mixing with said gel bentonite particles in an amount of at least 20% by weight of the total composition to form a cohesive mass of bentonite-containing gel.
Claim 9
Dependent Claim
22 words
A method as defined in claim 6 wherein said non-aqueous liquid is an oil and wherein said gelling agent is paraffin wax.
Claim 10
Dependent Claim
32 words
A method as defined in claim 7 wherein said paraffin wax is mixed with said oil in an amount in the range of about 25-50% by weight of oil plus paraffin wax.
Claim 11
Dependent Claim
14 words
A method as defined in claim 7 wherein said oil is a lubricating oil.
Claim 12
Dependent Claim
13 words
A method as defined in claim 7 wherein said oil is mineral oil.
Claim 13
Dependent Claim
23 words
A method as defined in claim 6 wherein said bentonite is powdered to a size in the range of 210 to 20 microns.
Claim 14
Dependent Claim
19 words
A method as defined in claim 6 wherein said composition is mixed vigorously to form a substantially homogeneous dispersion.
Claim 15
Independent Claim
75 words
A method of forming a water barrier for an inground foundation comprising, forming a foundation in soil; locating a mass of a gelled water sealant composition against said foundation, said composition in the form of a gel comprising bentonite in an amount of at least 20% by weight of the total water sealant composition; a non-aqueous liquid, and a gelling agent for said non-aqueous liquid in an amount sufficient to form a cohesive, homogeneous dispersion.
Claim 16
Independent Claim
75 words
A method of forming a water barrier for an inground foundation comprising, forming a foundation in soil; locating a mass of a gelled water sealant composition against said foundation, said composition in the form of a gel comprising bentonite in an amount of at least 20% by weight of the total water sealant composition; a non-aqueous liquid, and a gelling agent for said non-aqueous liquid in an amount sufficient to form a cohesive, homogeneous dispersion.
Claim 17
Dependent Claim
32 words
A method as defined in claim 13 wherein said non-aqueous liquid is contained in said gelled water sealant composition in an amount of about 30-85% by weight of liquid plus gelling agent.
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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) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |