US4296167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions for use in seal coats
Assignee: SIMONE JEANNE DANIELLE CEINTREY
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Filing: 1980-03-10
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Granted: 1981-10-20
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Expires: 2000-03-10
Abstract
Abstract A seal coat for use in a traffic surface is formed by reacting a first component comprising a liquid epoxy resin and a blocked polyisocyanate prepolymer with a second component comprising an aliphatic or cycloaliphatic polyamine, and allowing the mixture to cure. Advantageous results are achieved if the mixture, before curing, is allowed to impregnate a matrix, e.g. a non-woven synthetic material.
Inventors
- 👤 Marcel Ceintrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:29
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/08; E01D19/083; C; C09; C09D; C09D175/00; C09D175/04; C09D175/08; E01C; E01C7/00; E01C7/08; E01C7/35; E01C7/358; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24421; Y10T428/2443; Y10T428/28; Y10T428/2848; Y10T428/31504; Y10T428/31551; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2098; Y10T442/2107; Y10T442/60; Y10T442/699
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
Seal coat for a structure comprising: (a) a binding layer deposited on said structure; and (b) a reinforcement layer comprising a non-woven material of synthetic fibres impregnated with a binder comprising a complex of a modified epoxy resin and a polyureide, which is the reaction product of a first component comprising a liquid epoxy resin and a blocked polyisocyanate prepolymer, with a second component comprising an aliphatic or cycloaliphatic polyamine, said binder covering the surface of said seal coat.
Claim 2
Dependent Claim
79 words
Seal coat for a structure comprising: (a) a binding layer deposited on said structure; and (b) a reinforcement layer comprising a non-woven material of synthetic fibres impregnated with a binder comprising a complex of a modified epoxy resin and a polyureide, which is the reaction product of a first component comprising a liquid epoxy resin and a blocked polyisocyanate prepolymer, with a second component comprising an aliphatic or cycloaliphatic polyamine, said binder covering the surface of said seal coat.
Claim 3
Dependent Claim
46 words
A seal coat according to claim 1 in which the first component contains from 15 to 50% by weight epoxy resin and from 85 to 50% by weight blocked isocyanate prepolymer, the prepolymer comprising from 1.5 to 6% by weight thereof, before blocking, of isocyanate groups.
Claim 4
Dependent Claim
24 words
A seal coat according to claim 1 in which the polyamine is present in a substantially stiochiometric amount with respect to the first component.
Claim 5
Dependent Claim
36 words
A seal coat according to claim 1 in which the non-woven synthetic fibrous material has a weight of from 80 to 200 g/m 2 and an elongation of break in excess of 40% in all directions.
Claim 6
Dependent Claim
11 words
A traffic surface including a seal coat according to claim 1.
Claim 7
Dependent Claim
54 words
A method for forming a seal coat on a structure, which comprises spreading a binding layer over the structure; applying a matrix of a non-woven material over the binding layer; and spreading a layer of an uncured mixture as defined in claim 1 over the matrix, thereby impregnating the matrix; and curing the mixture.
Claim 8
Dependent Claim
40 words
A method according to claim 6 for forming a seal coat on a concrete structure, in which the binding layer comprises an aqueous epoxy resin emulsion which is spread in an amount of from 400 to 800 g/m 2 .
Claim 9
Dependent Claim
19 words
A method according to claim 6 in which the binding layer comprises a mixture as defined in claim 1.
Claim 10
Dependent Claim
16 words
A method according to claim 6 in which the matrix is as defined in claim 1.
Claim 11
Dependent Claim
19 words
A method according to claim 6 in which an inorganic aggregate is spread over the coat prior to curing.
Claim 12
Dependent Claim
11 words
A seal coat formed by a method according to claim 6.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |