US4115335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt and rubber comprising composition
Assignee: Phillips Petroleum Co
•
Filing: 1977-03-14
•
Granted: 1978-09-19
•
Expires: 1997-03-14
Abstract
Abstract A pipe coating composition is provided having good crack resistance properties that consists essentially of about 50 to 70 wt. % mineral aggregate, about 15 to 35 wt. % finely divided mineral filler, about 5 to 20 wt. % asphalt, about 0.05 to 7 wt. % of a rubbery radial teleblock copolymer, about 0 to 7 wt. % of an oil, and about 0 to 0.5 wt. % of a fibrous material. Furthermore, the crack resistance of a pipe coating composition is dramatically improved by using an asphalt rubber composition in which the rubber is an epoxy-coupled radial teleblock copolymer as compared to a silicon tetrahalide-coupled radial teleblock copolymer of essentially the same structure.
Inventors
- 👤 Robert E. Reusser
- 👤 Lew T. Gray
- 👤 Oren L. Marrs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:20
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/04; C; C08; C08K; C08K3/00; C08K3/01; C08K3/013; C08L; C08L53/00; C08L95/00; C09; C09D; C09D195/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1314; Y10T428/1352; Y10T428/1372
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
73 words
A composition of matter consisting essentially of a. about 50 to 70 wt. % of a mineral aggregate, b. about 15 to 35 wt. % of a finely divided mineral filler, c. about 5 to 20 wt. % of asphalt, d. about 0.05 to 7 wt. % of a rubbery radial teleblock copolymer, e. about 0 to 7 wt. % of oil, f. about 0 to 0.5 wt. % of a fibrous material.
Claim 2
Dependent Claim
73 words
A composition of matter consisting essentially of a. about 50 to 70 wt. % of a mineral aggregate, b. about 15 to 35 wt. % of a finely divided mineral filler, c. about 5 to 20 wt. % of asphalt, d. about 0.05 to 7 wt. % of a rubbery radial teleblock copolymer, e. about 0 to 7 wt. % of oil, f. about 0 to 0.5 wt. % of a fibrous material.
Claim 3
Dependent Claim
19 words
A composition of matter in accordance with claim 1 comprising 0.05 to 0.5 wt. % of a fibrous material.
Claim 4
Dependent Claim
77 words
A composition of matter in accordance with claim 1 comprising a. about 55 to 65 wt. % of a mineral aggregate, b. about 20 to 30 wt. % of a finely divided mineral filler, c. about 8 to 15 wt. % of asphalt, d. about 0.2 to 5 wt. % of a rubbery radial teleblock copolymer, e. about 0 to 5 wt. % of an oil, f. about 0.1 to 0.5 wt. % of a fibrous material.
Claim 5
Dependent Claim
27 words
A composition in accordance with claim 1 wherein the ratio of the rubbery radial teleblock copolymer to the oil is in the range of 2/1 to 0.3/1.
Claim 6
Dependent Claim
43 words
A composition in accordance with claim 1 wherein the total weight of the rubbery radial teleblock copolymer and oil is about 1 to 30 wt. % of the total weight of the rubbery radial teleblock copolymer, the oil and the asphalt taken together.
Claim 7
Dependent Claim
41 words
A composition of matter in accordance with claim 1 wherein said rubbery teleblock copolymer is a polymer of one or more alkadienes having 4 to 8 carbon atoms and one or more vinyl-substituted aromatic monomers having 8 to 12 carbon atoms.
Claim 8
Dependent Claim
17 words
A composition of matter in accordance with claim 2 wherein said fibrous material is glass fiber material.
Claim 9
Dependent Claim
62 words
A composition in accordance with claim 6 wherein said rubbery radial teleblock copolymer has the general formula (A-B) x Y wherein A constitutes a non-rubbery block, B constitutes an alkadiene-based rubbery block, x is an integer of at least 3 and Y is a part of the molecule that is derived from either a multifunctional initiator or from a multifunctional coupling agent.
Claim 10
Dependent Claim
48 words
A composition of matter in accordance with claim 8 wherein A is a polystyrene block, B is a rubbery polymer segment selected from the group consisting of polyalkadiene and copolymers of alkadienes and monovinyl-substituted arenes, and wherein Y is a molecular configuration derived from a multifunctional coupling agent.
Claim 11
Dependent Claim
99 words
A composition of matter comprising 70 to 99 parts by weight of asphalt, 0 to 10 parts by weight of an oil, 1 to 20 parts by weight of a teleblock copolymer having the formula (A-B).sub.x Y wherein A is a non-rubbery polymer block of a vinyl-substituted aromatic monomer of 8 to 12 carbon atoms, B is a rubbery polymer or copolymer block of an alkadiene having 4 to 8 carbon atoms, x is an integer of 3 or more, and Y is a portion of the molecule derived from a coupling agent containing at least 3 epoxy groups.
Claim 12
Dependent Claim
99 words
A composition of matter comprising 70 to 99 parts by weight of asphalt, 0 to 10 parts by weight of an oil, 1 to 20 parts by weight of a teleblock copolymer having the formula (A-B).sub.x Y wherein A is a non-rubbery polymer block of a vinyl-substituted aromatic monomer of 8 to 12 carbon atoms, B is a rubbery polymer or copolymer block of an alkadiene having 4 to 8 carbon atoms, x is an integer of 3 or more, and Y is a portion of the molecule derived from a coupling agent containing at least 3 epoxy groups.
Claim 13
Dependent Claim
36 words
A composition in accordance with claim 10 wherein A is a polystyrene block, B is a polybutadiene or polyisoprene block, Y is a part of the molecule resulting from epoxidized soybean oil as the coupling agent.
Claim 14
Dependent Claim
31 words
A composition of matter comprising: 70-99 parts by weight of asphalt, 0-10 parts by weight of an oil, and 1 to 20 parts by weight of a rubbery radial teleblock copolymer.
Claim 15
Dependent Claim
31 words
A composition of matter comprising: 70-99 parts by weight of asphalt, 0-10 parts by weight of an oil, and 1 to 20 parts by weight of a rubbery radial teleblock copolymer.
Claim 16
Dependent Claim
41 words
A composition of matter in accordance with claim 12 wherein said rubbery teleblock copolymer is a polymer of one or more alkadienes having 4 to 8 carbon atoms and one or more vinyl-substituted aromatic monomers having 8 to 12 carbon atoms.
Claim 17
Dependent Claim
62 words
A composition in accordance with claim 13 wherein said rubbery radial teleblock copolymer has the general formula (A-B) x Y wherein A constitutes a non-rubbery block, B constitutes an alkadiene-based rubbery block, x is an integer of at least 3, and Y is a part of the molecule that is derived from either a multifunctional initiator or from a multifunctional coupling agent.
Claim 18
Dependent Claim
48 words
A composition of matter in accordance with claim 14 wherein A is a polystyrene block, B is a rubbery polymer segment selected from the group consisting of polyalkadiene and copolymers of alkadienes and monovinyl-substituted arenes, and wherein Y is a molecular configuration derived from a multifunctional coupling agent.
Claim 19
Dependent Claim
12 words
A composition of matter comprising asphalt and a rubbery radial teleblock copolymer.
Claim 20
Dependent Claim
12 words
A composition of matter comprising asphalt and a rubbery radial teleblock copolymer.
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) | 1981-09-18 | 1982-03-20 | 1982-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-18 | 1986-03-20 | 1986-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-18 | 1990-03-20 | 1990-09-19 | $7700.00 | Window Closed / Lapsed |