US4069182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomeric pavement repair composition
Assignee: First Interstate Bank of Arizona
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Filing: 1975-02-07
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Granted: 1978-01-17
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Expires: 1995-02-07
Abstract
Abstract An elastomeric pavement repair composition for pavement failure and a method of preparation thereof comprising of paving grade asphalt and rubber. The asphalt is heated to an elevated temperature and the rubber is combined therewith. The resulting composition is mixed to form a hot jellied composition which can be applied to cracked or distressed pavements to repair the same.
Inventors
- 👤 Charles H. McDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:56
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
71 words
An elastomeric material consisting essentially of paving grade asphalt and non-oil resistant asphalt-soluble rubber; the material being prepared by heating paving grade asphalt to a temperature of from about 300° F to about 500° F to yield hot liquid asphalt; mixing between about one part and about five parts by weight of the hot asphalt with about one part by weight particulate non-oil resistant asphalt-soluble rubber to form a jellied composition.
Claim 2
Dependent Claim
71 words
An elastomeric material consisting essentially of paving grade asphalt and non-oil resistant asphalt-soluble rubber; the material being prepared by heating paving grade asphalt to a temperature of from about 300° F to about 500° F to yield hot liquid asphalt; mixing between about one part and about five parts by weight of the hot asphalt with about one part by weight particulate non-oil resistant asphalt-soluble rubber to form a jellied composition.
Claim 3
Dependent Claim
24 words
The material as defined in claim 1 wherein the asphalt is heated to a temperature of from about 350° F to about 425° F.
Claim 4
Dependent Claim
22 words
The material as defined in claim 1 wherein the asphalt is paving grade asphalt having a penetration range of 10 through 300.
Claim 5
Dependent Claim
22 words
The material as defined in claim 1 wherein the particulate rubber has a mesh size of from about -#4 to about +#200.
Claim 6
Dependent Claim
27 words
The material as defined in claim 1 wherein the asphalt is selected from paving grade asphalts having a penetration grade of from about 10-10 to about 200-300.
Claim 7
Dependent Claim
38 words
The material as defined in claim 1 wherein the rubber is unvulcanized, vulcanized or reclaimed rubber selected from the group consisting of natural rubbers, isoprene rubber, butadiene rubber, butadiene-styrene rubber, butyl rubber, ethylene propylene rubber and mixtures thereof.
Claim 8
Dependent Claim
49 words
The material as defined in claim 1 wherein the rubber is selected from the group consisting of ground whole tire rubber, tire rubber buffings, ground rubber innertubes, asphalt soluble rubber, reclaimed rubber and partially devulcanized reclaimed rubber prepared from whole tire rubber, tire rubber buffings and ground rubber innertube.
Claim 9
Dependent Claim
22 words
The material as defined in claim 1 wherein the particulate rubber has a mesh size of from about -#16 to about +#25.
Claim 10
Dependent Claim
36 words
The material as defined in claim 1 wherein the rubber is selected from the group consisting of reclaimed rubber and partially devulcanized reclaimed rubber prepared from whole tire rubber, tire rubber buffings and ground rubber innertubes.
Claim 11
Dependent Claim
25 words
The material as defined in claim 9 wherein the asphalt is paving grade asphalt having a penetration grade of from about 10-10 to about 200-300.
Claim 12
Independent Claim
115 words
A method of sealing joints and cracks in structures which comprises the steps of: a. preparing a hot elastomeric material consisting essentially of paving grade asphalt and non-oil resistant asphalt-soluble rubber by heating paving grade asphalt to a temperature of from about 300° F to about 500° F to form hot liquid asphalt, and mixing from about one part to about five parts by weight of the hot asphalt with about one part by weight of particulate non-oil resistant asphalt-soluble rubber to form a jellied composition; b. injecting the hot elastomeric material into the crevice of a joint or crack to seal and fill the same; and c. allowing the injected elastomeric material to cool.
Claim 13
Independent Claim
115 words
A method of sealing joints and cracks in structures which comprises the steps of: a. preparing a hot elastomeric material consisting essentially of paving grade asphalt and non-oil resistant asphalt-soluble rubber by heating paving grade asphalt to a temperature of from about 300° F to about 500° F to form hot liquid asphalt, and mixing from about one part to about five parts by weight of the hot asphalt with about one part by weight of particulate non-oil resistant asphalt-soluble rubber to form a jellied composition; b. injecting the hot elastomeric material into the crevice of a joint or crack to seal and fill the same; and c. allowing the injected elastomeric material to cool.
Claim 14
Dependent Claim
30 words
The method as defined in claim 11 including the additional step of dressing the exposed surface of the injected material with aggregate chips or sand before the injected material cools.
Claim 15
Dependent Claim
31 words
The method as defined in claim 11 including the step of dressing the exposed surface of the injected material with a plastic, rubber or felt sheet before the injected material cools.
Claim 16
Dependent Claim
24 words
The method as defined in claim 11 including the additional step of cleaning the crevice before injecting the hot elastomeric material into the crevice.
Claim 17
Dependent Claim
29 words
The method as defined in claim 11 including the additional step of routing or chiseling the surfaces of the crevice before injecting the hot elastomeric material into the crevice.
Claim 18
Dependent Claim
24 words
The method according to claim 11 wherein the asphalt is paving grade asphalt having a penetration grade of from about 10-10 to about 200-300.
Claim 19
Dependent Claim
23 words
The method according to claim 11 where the asphalt is heated to a temperature of from about 350° F to about 425° F.
Claim 20
Dependent Claim
20 words
The method according to claim 11 wherein the mesh size of the particulate rubber is about -#4 to about +#200.
Claim 21
Dependent Claim
37 words
The method according to claim 11 wherein the rubber is unvulcanized, vulcanized or reclaimed rubber selected from the group consisting of natural rubbers, isoprene rubber, butadiene rubber, butadiene-styrene rubber, butyl rubber, ethylene propylene rubber and mixtures thereof.
Claim 22
Dependent Claim
48 words
The method according to claim 11 wherein the rubber is selected from the group consisting of ground whole tire rubber, tire rubber buffings, ground rubber innertubes, asphalt soluble rubber, reclaimed rubber and partially devulcanized reclaimed rubber prepared from whole tire rubber, tire rubber buffings and ground rubber innertubes.
Claim 23
Dependent Claim
31 words
The method as defined in claim 11 including the step of dressing the exposed surface of the injected material with a plastic, rubber or felt film before the injected material cools.
Claim 24
Dependent Claim
27 words
The method as defined in claim 11 including the additional step of chiseling the surfaces of the crevice before injecting the hot elastomeric material into the crevice.
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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) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |