US3930100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomeric cold patch for pavement repair
Assignee: First Interstate Bank of Arizona
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Filing: 1973-07-05
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Granted: 1975-12-30
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Expires: 1993-07-05
Abstract
Abstract An elastomeric cold patch for pavement repair and the method of preparation thereof comprising preparing an elastomeric pavement repair composition from paving grade asphalt and rubber. The asphalt is heated to an elevated temperature and the rubber is combined therewith. The resulting hot composition is mixed to form a hot jelly composition which is formed into a layer. The top surface of the hot layer of the elastomeric composition is dressed with aggregate. Optionally, aggregate can be added into the hot elastomeric composition prior to the formation of the layer. Upon cooling of the layer of hot elastomeric material, an elastomeric cold patch is obtained. Pavements are repaired by cleaning the area of the pavement which is to be repaired, tacking the surface of the pavement and applying the hot elastomeric cold path thereto.
Inventors
- 👤 Charles H Mcdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:15
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/08; E01C7/18; E01C7/26; E01C7/265; C; C08; C08L; C08L95/00; Y; Y10; Y10T; Y10T428/00; Y10T428/20; Y10T428/25; Y10T428/26; Y10T428/268; Y10T428/31504; Y10T428/31815; Y10T428/31819; Y10T428/31823; Y10T428/31826; Y10T428/31841; Y10T428/31855; Y10T428/31931
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
98 words
AN ELASTOMERIC COLD PATCH COMPRISING A THIN FLEXIBLE BACKING SHEET; AND A LAYER OF ELASTOMERIC PAVEMENT REPAIR MATERIAL CONSISTING ESSENTIALLY OF 10 THROUGH 300 PENETRATION GRATE ASPHALT AND PARTICULATE NON-OIL RESISTANT ASPHALT SOLUBLE HYDROCARBON RUBBER THAT HAVE BEEN MIXED TOGETHER IN A RATIO OF ABOUT 2 TO ABOUT 3 PARTS ASPHALT TO ABOUT 1 PART RUBBER BY WEIGHT AT A TEMPERATURE OF FROM 300*F TO ABOUT 500*F TO FORM A HOT JELLIED COMPOSITION FROM WHICH THE LAYER IS PREPARED; SAID FLEXIBLE BACKING SHEET SECURED TO THE UNDER SIDE OF SAID LAYER WHEREIN THE LAYER IS IMPREGNATED WITH AGGREGATE.
Claim 2
Dependent Claim
98 words
AN ELASTOMERIC COLD PATCH COMPRISING A THIN FLEXIBLE BACKING SHEET; AND A LAYER OF ELASTOMERIC PAVEMENT REPAIR MATERIAL CONSISTING ESSENTIALLY OF 10 THROUGH 300 PENETRATION GRATE ASPHALT AND PARTICULATE NON-OIL RESISTANT ASPHALT SOLUBLE HYDROCARBON RUBBER THAT HAVE BEEN MIXED TOGETHER IN A RATIO OF ABOUT 2 TO ABOUT 3 PARTS ASPHALT TO ABOUT 1 PART RUBBER BY WEIGHT AT A TEMPERATURE OF FROM 300*F TO ABOUT 500*F TO FORM A HOT JELLIED COMPOSITION FROM WHICH THE LAYER IS PREPARED; SAID FLEXIBLE BACKING SHEET SECURED TO THE UNDER SIDE OF SAID LAYER WHEREIN THE LAYER IS IMPREGNATED WITH AGGREGATE.
Claim 3
Dependent Claim
32 words
The elastomeric cold patch as defined in claim 1 wherein said layer is impregnated with from about 5 to about 20 pounds of light weight aggregate per square yard of cold patch.
Claim 4
Dependent Claim
32 words
The elastomeric cold patch as defined in claim 1 wherein said layer is impregnated with from about 25 to about 40 pounds of conventional mineral aggregate per square yard of cold patch.
Claim 5
Dependent Claim
25 words
The elastomeric cold patch as defined in claim 1 wherein the asphalt of the elastomeric pavement repair material of said layer is paving grade asphalt.
Claim 6
Dependent Claim
49 words
The elastomeric cold patch as defined in claim 4 wherein the hydrocarbon rubber of the elastomeric pavement repair material of said layer is selected from the group consisting of ground whole tire rubber, unprocessed rubber buffings, ground innertube rubber, reclaimed rubber, partially devulcanized reclaimed rubber and asphalt soluble rubber.
Claim 7
Dependent Claim
45 words
The elastomeric cold patch as defined in claim 4 wherein the hydrocarbon rubber of the elastomeric pavement repair material is unvulcanized, vulcanized or reclaimed rubber selected from the group consisting of natural rubber, isoprene rubber, butadiene rubber, butadiene-styrene rubber, butyl rubber and ethylene propylene rubber.
Claim 8
Dependent Claim
20 words
The elastomeric cold patch as defined in claim 1 wherein the upper side of the layer has an aggregate dressing.
Claim 9
Dependent Claim
22 words
The elastomeric cold patch as defined in claim 1 wherein said layer is from about 0.1 to about 0.5 inches in thickness.
Claim 10
Dependent Claim
32 words
The elastomeric cold patch as defined in claim 8 wherein said layer is impregnated with from about 20 to about 50 pounds of conventional mineral aggregate per square yard of said layer.
Claim 11
Dependent Claim
21 words
The elastomeric cold patch as defined in claim 9 wherein the upper side of said layer has a dressing of aggregate.
Claim 12
Dependent Claim
102 words
AN ELASTOMERIC COLD PATCH COMPRISING A THIN FLEXIBLE BACKING SHEET; AND A LAYER OF ELASTOMERIC PAVEMENT REPAIR MATERIAL CONSISTING ESSENTIALLY OF 10 THROUGH 300 PENETRATION GRADE ASPHALT AND PARTICULATE NON-OIL RESISTANT ASPHALT SOLUBLE HYDROCARBON RUBBER THAT HAVE BEEN MIXED TOGETHER IN A RATIO OF ABOUT 2 TO ABOUT 3 PARTS ASPHALT TO ABOUT 1 PART RUBBER BY WEIGH AT A TEMPERATURE OF FROM 300*F TO ABOUT 500*F TO FORM A HOT JELLIED COMPOSITION FROM WHICH THE LAYER IS PREPARED; SAID FLEXIBLE BACKING SHEET SECURED TO THE UNDER SIDE OF SAID LAYER WHEREIN THE UPPER SIDE OF THE LAYER HAS AN AGGREGATE DRESSING.
Claim 13
Dependent Claim
102 words
AN ELASTOMERIC COLD PATCH COMPRISING A THIN FLEXIBLE BACKING SHEET; AND A LAYER OF ELASTOMERIC PAVEMENT REPAIR MATERIAL CONSISTING ESSENTIALLY OF 10 THROUGH 300 PENETRATION GRADE ASPHALT AND PARTICULATE NON-OIL RESISTANT ASPHALT SOLUBLE HYDROCARBON RUBBER THAT HAVE BEEN MIXED TOGETHER IN A RATIO OF ABOUT 2 TO ABOUT 3 PARTS ASPHALT TO ABOUT 1 PART RUBBER BY WEIGH AT A TEMPERATURE OF FROM 300*F TO ABOUT 500*F TO FORM A HOT JELLIED COMPOSITION FROM WHICH THE LAYER IS PREPARED; SAID FLEXIBLE BACKING SHEET SECURED TO THE UNDER SIDE OF SAID LAYER WHEREIN THE UPPER SIDE OF THE LAYER HAS AN AGGREGATE DRESSING.
Claim 14
Dependent Claim
32 words
The elastomeric cold patch as defined in claim 11 wherein said layer is impregnated with from about 5 to about 20 pounds of light weight aggregate per square yard of cold patch.
Claim 15
Dependent Claim
32 words
The elastomeric cold patch as defined in claim 11 wherein said layer is impregnated with from about 25 to about 40 pounds of conventional mineral aggregate per square yard of cold patch.
Claim 16
Dependent Claim
25 words
The elastomeric cold patch as defined in claim 11 wherein the asphalt of the elastomeric pavement repair material of said layer is paving grade asphalt.
Claim 17
Dependent Claim
49 words
The elastomeric cold patch as defined in claim 14 wherein the hydrocarbon rubber of the elastomeric pavement repair material of said layer is selected from the group consisting of ground whole tire rubber, unprocessed rubber buffings, ground innertube rubber, reclaimed rubber, partially devulcanized reclaimed rubber and asphalt soluble rubber.
Claim 18
Dependent Claim
45 words
The elastomeric cold patch as defined in claim 14 wherein the hydrocarbon rubber of the elastomeric pavement repair material is unvulcanized, vulcanized or reclaimed rubber selected from the group consisting of natural rubber, isoprene rubber, butadiene rubber, butadiene-styrene rubber, butyl rubber and ethylene propylene rubber.
Claim 19
Dependent Claim
22 words
The elastomeric cold patch as defined in claim 11 wherein said layer is from about 0.1 to about 0.5 inches in thickness.
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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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |