US3900439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for repairing asphalt pavement
Assignee: Courtaulds Aerospace Inc
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Filing: 1974-05-24
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Granted: 1975-08-19
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Expires: 1994-05-24
Abstract
Abstract A method and composition for filling voids in asphalt pavement, said method including forming a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a binder consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer and (b) less than 5 percent, by weight, of a solvent for the binder which will tackify and solvate said binder, and filling said voids with said admixture.
Inventors
- 👤 Carl Joseph Kay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:59
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/08; E01C7/18; E01C7/26; E01C7/265; C; C08; C08L; C08L95/00; E01C7/187
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
169 words
METHOD FOR REPAIRING ASPHALT PAVEMENT HAVING VOIDS ON THE TOP SURFACE THEREOF WHICH COMPRISES, FORMING A UNIFORM ADMIXTURE OF (A) AGGREGATE GRANULES THE SURFACES OF WHICH ARE SUBSTANTIALLY COMPLETELY COATED WITH A COATING COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF ASPHALT AND ETHYLENE-VINYLACETATE COPOLYMER AND (B) BETWEEN 0.5 TO 5 PERCENT, BY WEIGHT, OF A SOLVENT SOLUTION CONSISTING ESSENTIALLY OF AN ORGANIC SOLVENT FOR THE COATING COMPOSITION WHICH WILL TACKIFY AND SOLVATE SAID COATING COMPOSITION SAID ORGANIC SOLVENT HAVING A SOLUBILITY PARAMETER FROM ABOUT 7 TO 10, A BOILING POINT FROM ABOUT 150*F TO ABOUT 325*F AND AN EVAPORATION RATE OF FROM ABOUT 0.1 TO 6.0, AT ROOM TEMPERATURE, USING BUTYLACETATE AS 1.0 AS THE BASIS, AND FROM 0 TO 50 PERCENT, BY WEIGHT, OF A BINDER WHICH IS A MIXTURE OF ASPHALT AND ETHYLENE-VINYLACETATE COPOLYMER, AND FILLING SAID VOIDS WITH SAID ADMIXTURE AND COMPACTING THE SAME IN SAID VOIDS TO FORM A LONG LASTING PATCH WHICH CAN BE DRIVEN UPON BY VEHICULAR TRAFFIC SHORTLY AFTER FILLING SAID VOIDS.
Claim 2
Dependent Claim
169 words
METHOD FOR REPAIRING ASPHALT PAVEMENT HAVING VOIDS ON THE TOP SURFACE THEREOF WHICH COMPRISES, FORMING A UNIFORM ADMIXTURE OF (A) AGGREGATE GRANULES THE SURFACES OF WHICH ARE SUBSTANTIALLY COMPLETELY COATED WITH A COATING COMPOSITION CONSISTING ESSENTIALLY OF A MIXTURE OF ASPHALT AND ETHYLENE-VINYLACETATE COPOLYMER AND (B) BETWEEN 0.5 TO 5 PERCENT, BY WEIGHT, OF A SOLVENT SOLUTION CONSISTING ESSENTIALLY OF AN ORGANIC SOLVENT FOR THE COATING COMPOSITION WHICH WILL TACKIFY AND SOLVATE SAID COATING COMPOSITION SAID ORGANIC SOLVENT HAVING A SOLUBILITY PARAMETER FROM ABOUT 7 TO 10, A BOILING POINT FROM ABOUT 150*F TO ABOUT 325*F AND AN EVAPORATION RATE OF FROM ABOUT 0.1 TO 6.0, AT ROOM TEMPERATURE, USING BUTYLACETATE AS 1.0 AS THE BASIS, AND FROM 0 TO 50 PERCENT, BY WEIGHT, OF A BINDER WHICH IS A MIXTURE OF ASPHALT AND ETHYLENE-VINYLACETATE COPOLYMER, AND FILLING SAID VOIDS WITH SAID ADMIXTURE AND COMPACTING THE SAME IN SAID VOIDS TO FORM A LONG LASTING PATCH WHICH CAN BE DRIVEN UPON BY VEHICULAR TRAFFIC SHORTLY AFTER FILLING SAID VOIDS.
Claim 3
Dependent Claim
53 words
A method according to claim 1 wherein the amount of asphalt in the coating composition is between 95 and 60 percent, by weight, based on the weight of the coating composition and the amount of ethylene-vinylacetate copolymer is between 5 and 40 percent, by weight, based on the weight of the coating composition.
Claim 4
Dependent Claim
30 words
A method according to claim 2 wherein the ethylene-vinylacetate copolymer has a melt index of between 15 and 200 and contains from 18 to 42 percent, by weight, of vinylacetate.
Claim 5
Dependent Claim
17 words
A method according to claim 2 wherein the asphalt has a penetration value of 40-50 to 120-150.
Claim 6
Dependent Claim
23 words
A method according to claim 1 wherein the coating composition is present in an amount of from 3 to 12 percent, by weight.
Claim 7
Dependent Claim
33 words
A method according to claim 1 wherein the solvent solution contains tHe binder in an amount of from 5 to 50 percent, by weight, based on the entire weight of the solvent solution.
Claim 8
Dependent Claim
20 words
A method according to claim 1 wherein the amount of solvent solution is from 0.5 to 4 percent, by weight.
Claim 9
Dependent Claim
126 words
A composition for repairing asphalt pavement which comprises a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 to 6.0, at room temperature, using butyl acetate as a basis; and (b) less than 5 percent, by weight, of a solvent solution consisting essentially of a solvent for the coating composition which will tackify and solvate said coating composition and from 0 to 50 percent, by weight, of a binder which is a mixture of asphalt and ethylene-vinylacetate copolymer.
Claim 10
Dependent Claim
126 words
A composition for repairing asphalt pavement which comprises a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 to 6.0, at room temperature, using butyl acetate as a basis; and (b) less than 5 percent, by weight, of a solvent solution consisting essentially of a solvent for the coating composition which will tackify and solvate said coating composition and from 0 to 50 percent, by weight, of a binder which is a mixture of asphalt and ethylene-vinylacetate copolymer.
Claim 11
Dependent Claim
53 words
A composition according to claim 8 wherein the amount of asphalt in the coating composition is between 95 and 60 percent, by weight, based on the weight of the coating composition and the amount of ethylene-vinylacetate copolymer is between 5 and 40 percent, by weight, based on the weight of the coating composition.
Claim 12
Dependent Claim
30 words
A composition according to claim 9 wherein the ethylene-vinylacetate copolymer has a melt index of between 15 and 200 and contains from 18 to 42 percent, by weight of vinylacetate.
Claim 13
Dependent Claim
17 words
A composition according to claim 9 wherein the asphalt has a penetration value of 40-50 to 120-150.
Claim 14
Dependent Claim
23 words
A composition according to claim 8 wherein the coating composition is present in an amount of from 3 to 12 percent, by weight.
Claim 15
Dependent Claim
33 words
A composition according to claim 8 wherein the solvent solution contains the binder in an amount of from 5 to 50 percent, by weight, based on the entire weight of the solvent solution.
Claim 16
Dependent Claim
20 words
A composition according to claim 8 wherein the amount of solvent solution is from 0.5 to 11 percent, by weight.
Claim 17
Dependent Claim
154 words
Method for repairing asphalt pavement having voids on the top surface thereof which comprises: forming a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer and (b) between 0.5 to 5 percent, by weight, of a solvent solution consisting essentially of an organic solvent for the coating composition said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 to 6.0, at room temperature, using butyl acetate as 1.0 as the basis; and from 0 to 50 percent, by weight, of an asphalt binder; and filling said voids with said admixture and compacting the same in said voids to form a long lasting patch which can be driven upon by vehicular traffic shortly after filling said voids.
Claim 18
Dependent Claim
154 words
Method for repairing asphalt pavement having voids on the top surface thereof which comprises: forming a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer and (b) between 0.5 to 5 percent, by weight, of a solvent solution consisting essentially of an organic solvent for the coating composition said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 to 6.0, at room temperature, using butyl acetate as 1.0 as the basis; and from 0 to 50 percent, by weight, of an asphalt binder; and filling said voids with said admixture and compacting the same in said voids to form a long lasting patch which can be driven upon by vehicular traffic shortly after filling said voids.
Claim 19
Dependent Claim
163 words
Method for repairing asphalt pavement having voids on the top surface thereof which comprises: forming a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer and (b) between 0.5 to 5 percent, by weight, of a solvent solution consisting essentially of an organic solvent for the coating composition which will tackify and solvate said coating composition said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 To 6.0, at room temperature, using butyl acetate as 1.0 as the basis; and from 0 to 50 percent, by weight, of an ethylene-vinylacetate copolymer binder; and filling said voids with said admixture and compacting the same in said voids to form a long lasting patch which can be driven upon by vehicular traffic shortly after filling said voids.
Claim 20
Dependent Claim
163 words
Method for repairing asphalt pavement having voids on the top surface thereof which comprises: forming a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer and (b) between 0.5 to 5 percent, by weight, of a solvent solution consisting essentially of an organic solvent for the coating composition which will tackify and solvate said coating composition said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 To 6.0, at room temperature, using butyl acetate as 1.0 as the basis; and from 0 to 50 percent, by weight, of an ethylene-vinylacetate copolymer binder; and filling said voids with said admixture and compacting the same in said voids to form a long lasting patch which can be driven upon by vehicular traffic shortly after filling said voids.
Claim 21
Dependent Claim
118 words
A composition for repairing asphalt pavement which comprises a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 to 6.0, at room temperature, using butyl acetate as a basis; and (b) less than 5 percent, by weight, oif a solvent solution consisting essentially of a solvent for the coating composition which will tackify and solvate said coating composition and from 0 to 50 percent, by weight, of an asphalt binder.
Claim 22
Dependent Claim
118 words
A composition for repairing asphalt pavement which comprises a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 to 6.0, at room temperature, using butyl acetate as a basis; and (b) less than 5 percent, by weight, oif a solvent solution consisting essentially of a solvent for the coating composition which will tackify and solvate said coating composition and from 0 to 50 percent, by weight, of an asphalt binder.
Claim 23
Dependent Claim
119 words
A composition for repairing asphalt pavement which comprises a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 to 6.0, at room temperature, using butyl acetate as a basis; and (b) less than 5 percent, by weight, of a solvent solution consisting essentially of a solvent for the coating composition which will tackify and solvate said coating composition and from 0 to 50 percent, by weight, of an ethylenevinylacetate copolymer binder.
Claim 24
Dependent Claim
119 words
A composition for repairing asphalt pavement which comprises a uniform admixture of (a) aggregate granules the surfaces of which are substantially completely coated with a coating composition consisting essentially of a mixture of asphalt and ethylene-vinylacetate copolymer said organic solvent having a solubility parameter from about 7 to 10, a boiling point from about 150*F. to about 325*F. and an evaporation rate of from about 0.1 to 6.0, at room temperature, using butyl acetate as a basis; and (b) less than 5 percent, by weight, of a solvent solution consisting essentially of a solvent for the coating composition which will tackify and solvate said coating composition and from 0 to 50 percent, by weight, of an ethylenevinylacetate copolymer binder.
References Cited (Backward Citations)
US3442841A
Cited
US3821144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |