Patent US3118719A successfully refreshed from Google Patents.
US4607066A
Expired / Lapsed
US
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Mine stopping sealant
Assignee: Celotex Corp
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Filing: 1985-05-30
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Granted: 1986-08-19
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Expires: 2005-05-30
Abstract
Abstract A process for coating geological formations and mine stoppings by applying to these substrates an aqueous, non-cementitious sealant composition comprising a water-soluble or water-dispersible polymeric binder, filler material and water, and allowing the sealant composition to dry to form an air flow resistant coating on the substrates. A highly satisfactory polymeric binder is used in the form of a polymer emulsion, such as an emulsion of an acrylic polymer having a low Tg and being sufficiently plasticized to provide a coating having prolonged air flow resistance.
Inventors
- 👤 Leon F. Barry
- 👤 James A. Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:54
CPC Classifications
E; E21; E21D; E21D11/00; E21D11/38; C; C09; C09K; C09K8/00; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C09K8/512
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
80 words
A process for coating geological formations and mine stoppings consisting essentially of applying to said substrates an aqueous, non-cementitious sealant composition comprising 6 to 26% by weight of a water-dispersible polymeric binder, 25 to 45% by weight of filler material and 17 to 50% by weight of water, said sealant composition having a viscosity of at least 7500 centipoises measured at 24° C., and allowing said sealant composition to dry to form an air flow resistant coating on said substrates.
Claim 2
Dependent Claim
80 words
A process for coating geological formations and mine stoppings consisting essentially of applying to said substrates an aqueous, non-cementitious sealant composition comprising 6 to 26% by weight of a water-dispersible polymeric binder, 25 to 45% by weight of filler material and 17 to 50% by weight of water, said sealant composition having a viscosity of at least 7500 centipoises measured at 24° C., and allowing said sealant composition to dry to form an air flow resistant coating on said substrates.
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein said polymeric binder is an acrylic polymer.
Claim 4
Dependent Claim
34 words
The process of claim 1 wherein said polymeric binder is a homopolymer or copolymer of a member selected from the group consisting of acrylates, methacrylates, acrylamides, methacrylamides, acrylic acid, methacrylic acid and mixtures thereof.
Claim 5
Dependent Claim
30 words
The process of claim 1 wherein said polymeric binder is an acrylic polymer having a low Tg and being sufficiently plasticized to provide a coating having prolonged air flow resistance.
Claim 6
Dependent Claim
52 words
The process of claim 1 wherein said sealant composition additionally contains an effective amount of at least one component selected from the group consisting of a dispersing agent, a thickening agent, a defoamer, an anti-freeze stabilizer, a preservative, a coalescent, a pH stabilizer, a wetting agent, a fibrous material and mixtures thereof.
Claim 7
Dependent Claim
29 words
The process of claim 1 wherein said filler material is a member selected from the group consisting of titanium dioxide, alumina trihydrate, mica, silica, calcium carbonate and mixtures thereof.
Claim 8
Dependent Claim
13 words
The process of claim 6 wherein said polymeric binder is an acrylic polymer.
Claim 9
Dependent Claim
36 words
The process of claim 7 wherein said sealant composition comprises 10 to 15% by weight of said acrylic polymer, 35 to 40% by weight of said filler material and 35 to 40% by weight of water.
Claim 10
Dependent Claim
26 words
The process of claim 8 wherein said acrylic polymer has a low Tg and is sufficiently plasticized to provide a coating having prolonged air flow resistance.
Claim 11
Dependent Claim
76 words
The process of claim 1 wherein said filler material is a member selected from the group consisting of titanium dioxide, alumina trihydrate, mica, silica, calcium carbonate and mixtures thereof, and said sealant composition additionally contains an effective amount of at least one component selected from the group consisting of a dispersing agent, a thickening agent, a defoamer, an anti-freeze stabilizer, a preservative, a coalescent, a pH stabilizer, a wetting agent, a fibrous material and mixtures thereof.
Claim 12
Dependent Claim
13 words
The process of claim 10 wherein said polymeric binder is an acrylic polymer.
Claim 13
Dependent Claim
26 words
The process of claim 11 wherein said acrylic polymer has a low Tg and is sufficiently plasticized to provide a coating having prolonged air flow resistance.
Claim 14
Dependent Claim
91 words
The process of claim 12 wherein said sealant composition comprises 10 to 15% by weight of said acrylic polymer, 35 to 40% by weight of said filler material and 35 to 40% by weight of water, and said dispersing agent is sodium hexametaphosphate, said thickening agent is bentonite clay, said defoamer is a petroleum derivative blend, said anti-freeze stabilizer is ethylene glycol, said preservative is dicyanobutane, said coalescent is trimethylpentanediolmonoisobutyrate, said pH stabilizer is ammonium hydroxide, said wetting agent is a polyoxypropylene-polyoxyethylene copolymer, and said fibrous material is chopped glass fiber.
Claim 15
Dependent Claim
67 words
In a process for sealing geological formations and mine stoppings by applying to said substrates a sealant composition and allowing said sealant composition to dry to form an air flow resistant coating on said substrates, the improvement consisting essentially of applying an aqueous, non-cementitious mixture comprising a water-dispersible polymeric binder, filler material and water and having a viscosity of at least 7500 centipoises measured at 24° C.
Claim 16
Dependent Claim
67 words
In a process for sealing geological formations and mine stoppings by applying to said substrates a sealant composition and allowing said sealant composition to dry to form an air flow resistant coating on said substrates, the improvement consisting essentially of applying an aqueous, non-cementitious mixture comprising a water-dispersible polymeric binder, filler material and water and having a viscosity of at least 7500 centipoises measured at 24° C.
Claim 17
Dependent Claim
13 words
The process of claim 14 wherein said polymeric binder is an acrylic polymer.
Claim 18
Dependent Claim
26 words
The process of claim 15 wherein said acrylic polymer has a low Tg and is sufficiently plasticized to provide a coating having prolonged air flow resistance.
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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) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |