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US4874641A
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US
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Method of providing a barrier between a substrate and the atmosphere and compositions therefor
Assignee: RUSMAR INCORPORATED 800 EAST VIRGINIA AVENUE WEST CHESTER PA 19380 A CORP OF
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Filing: 1987-11-24
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Granted: 1989-10-17
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Expires: 2007-11-24
Abstract
Abstract A method of forming a temporary barrier between a substrate and the atmosphere by applying to the substrate a layer of foam generated from an aqueous composition comprising specified agents. Certain compositions especially adapted for this purpose are also provided.
Inventors
- 👤 Paul A. Kittle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:46
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/12; B; B08; B08B; B08B17/00; B08B17/02; B09; B09B; B09B1/00; B09B1/004; C; C09; C09D; C09D5/00; C09K; C09K17/00; C09K17/40; C09K17/48; Y; Y02; Y02W; Y02W30/00; Y02W30/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
194 words
The method of forming a barrier layer between a substrate and the outdoor atmosphere, wherein the substrate is a material producing dust, noxious fumes, or odors or blowing trash, or a plant subject to damage from adverse atmospheric conditions, which comprises applying to the substrate an essentially biodegradable foam prepared from an aqueous composition comprising, in an approximately 1:1 molar ratio, (A) at least one anionic surface active sulfate having the formula ##STR5## where --OR is an alkoxy, alkylenoxy or alkaryloxy group having from 10 to 20 carbon atoms or an alkyl polyether group ##STR6## in which R' is an alkyl group containing from 10 to 20 carbon atoms, R" is H or an alkyl group containing up to 4 carbon atoms, and n is an integer from 1 to 12, or a sulfonate having the formula ##STR7## where R 1 is an alkyl, alkylene or alkaryl group containing from 10 to 20 carbon atoms, and where M is a monovalent cation, and (B) a carboxylic acid salt, R 2 COOM 1 , where R 2 is an alkyl group containing from 8 to 30 carbon atoms and M 1 is a monovalent cation.
Claim 2
Independent Claim
194 words
The method of forming a barrier layer between a substrate and the outdoor atmosphere, wherein the substrate is a material producing dust, noxious fumes, or odors or blowing trash, or a plant subject to damage from adverse atmospheric conditions, which comprises applying to the substrate an essentially biodegradable foam prepared from an aqueous composition comprising, in an approximately 1:1 molar ratio, (A) at least one anionic surface active sulfate having the formula ##STR5## where --OR is an alkoxy, alkylenoxy or alkaryloxy group having from 10 to 20 carbon atoms or an alkyl polyether group ##STR6## in which R' is an alkyl group containing from 10 to 20 carbon atoms, R" is H or an alkyl group containing up to 4 carbon atoms, and n is an integer from 1 to 12, or a sulfonate having the formula ##STR7## where R 1 is an alkyl, alkylene or alkaryl group containing from 10 to 20 carbon atoms, and where M is a monovalent cation, and (B) a carboxylic acid salt, R 2 COOM 1 , where R 2 is an alkyl group containing from 8 to 30 carbon atoms and M 1 is a monovalent cation.
Claim 3
Dependent Claim
18 words
The method of claim 1 wherein A is an α-olefin sulfonate containing principally 10 to 16 carbon atoms.
Claim 4
Dependent Claim
23 words
The method of claim 1 wherein --OR is an alkylbenzyloxy group in which the alkyl group contains from 10 to 16 carbon atoms.
Claim 5
Dependent Claim
21 words
The method of claim 1 wherein B is a salt of a fatty acid containing principally 8 to 20 carbon atoms.
Claim 6
Dependent Claim
13 words
The method of claim 1 wherein B is a potassium or ammonium salt.
Claim 7
Dependent Claim
37 words
The method of claim 1 wherein A is a sodium α-olefin sulfonate containing principally 10 to 16 carbon atoms, and wherein B is a potassium salt of a fatty acid containing principally 8 to 20 carbon atoms.
Claim 8
Dependent Claim
10 words
The method of claim 1 wherein B is potassium stearate.
Claim 9
Dependent Claim
15 words
The method of claim 1 wherein the composition contains also a water hardness control agent.
Claim 10
Dependent Claim
14 words
The method of claim 8 wherein the water hardness control agent is a tripolyphosphate.
Claim 11
Dependent Claim
12 words
The method of claim 1 wherein the composition contains also carbon black.
Claim 12
Dependent Claim
17 words
The method of claim 1 wherein the composition contains a water hardness control agent and carbon black.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |