Patent US4028293A successfully refreshed from Google Patents.
US4028293A
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Method for preparing materials containing minerals and synthetic substances, materials manufactured according to said method and objects consisting of said materials
Assignee: Hollandsche Wegenbouw Zanen BV
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Filing: 1975-09-29
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Granted: 1977-06-07
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Expires: 1995-09-29
Abstract
Abstract A building or road construction material, and method for its formation, which comprises (1) mineral components such as sand, gravel, diminuted glass, etc., (2) polymeric components such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, etc., and (3) a hydrocarbon-containing component such as tar pitch, bituminous products, petroleum coke, etc. According to the method of the invention the mineral component is first heated to a temperature of at least 180 DEG C and then mixed with the polymeric component in diminutive form, and then to this resulting mixture is added the hydrocarbon component. The final mixture is then allowed to cool to form the desired product.
Inventors
- 👤 Antoon J. Van Den Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:24
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/26; C08; C08J; C08J11/00; C08J11/04; C08J11/06; C08L; C08L95/00; E; E01; E01C; E01C7/00; E01C7/08; E01C7/18; E01C7/26; E01C7/265; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y02W30/91
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
74 words
A method of preparing a material consisting essentially of a mineral component, a polymeric component, and bitumen, said method comprising sequentially 1. heating a mineral component to a temperature of at least 180° C; 2. mixing with the heated mineral component of (1) a thermoplastic polymeric component, said polymeric component being in diminutive form and in an amount of 2 to 30% by weight, calculated on the amount by weight of the mineral component;
Claim 2
Independent Claim
74 words
A method of preparing a material consisting essentially of a mineral component, a polymeric component, and bitumen, said method comprising sequentially 1. heating a mineral component to a temperature of at least 180° C; 2. mixing with the heated mineral component of (1) a thermoplastic polymeric component, said polymeric component being in diminutive form and in an amount of 2 to 30% by weight, calculated on the amount by weight of the mineral component;
Claim 3
Dependent Claim
47 words
mixing with said mixture of (2) the bitumen which has been previously heated, said heated bitumen being used in an amount of 40% to 60% by weight, calculated on the amount by weight of said polymeric component; and 4. allowing the material product of (3) to cool.
Claim 4
Dependent Claim
47 words
mixing with said mixture of (2) the bitumen which has been previously heated, said heated bitumen being used in an amount of 40% to 60% by weight, calculated on the amount by weight of said polymeric component; and 4. allowing the material product of (3) to cool.
Claim 5
Independent Claim
125 words
A method of preparing a material consisting essentially of a mineral component comprising sand or a mixture of sand and gravel, a polymeric component, and bitumen, said method comprising sequentially 1. heating said mineral component to a temperature of at least 180° C; 2. mixing with the heated mineral component of (1) a thermoplastic polymeric component, said polymeric component comprising diminutive polyethylene in an amount of 4% by weight, calculated on the amount by weight of said mineral component; 3. mixing with said mixture of (2) the bitumen which has been previously heated, said heated bitumen being used in an amount of 2% by weight, calculated on the amount by weight of said mineral component; and 4. allowing the material product of (3) to cool.
Claim 6
Independent Claim
125 words
A method of preparing a material consisting essentially of a mineral component comprising sand or a mixture of sand and gravel, a polymeric component, and bitumen, said method comprising sequentially 1. heating said mineral component to a temperature of at least 180° C; 2. mixing with the heated mineral component of (1) a thermoplastic polymeric component, said polymeric component comprising diminutive polyethylene in an amount of 4% by weight, calculated on the amount by weight of said mineral component; 3. mixing with said mixture of (2) the bitumen which has been previously heated, said heated bitumen being used in an amount of 2% by weight, calculated on the amount by weight of said mineral component; and 4. allowing the material product of (3) to cool.
Claim 7
Independent Claim
43 words
A method of preparing a material consisting essentially of a mineral component comprising sand or a mixture of sand and gravel, a polymeric component, and bitumen, said method comprising sequentially 1. heating said mineral component to a temperature of at least 180° C;
Claim 8
Independent Claim
43 words
A method of preparing a material consisting essentially of a mineral component comprising sand or a mixture of sand and gravel, a polymeric component, and bitumen, said method comprising sequentially 1. heating said mineral component to a temperature of at least 180° C;
Claim 9
Dependent Claim
81 words
mixing with the heated mineral component of (1) a thermoplastic polymeric component, said polymeric component comprising diminutive polyethylene in an amount of 6% by weight, calculated on the amount by weight of said mineral component; 3. mixing with said mixture of (2) the bitumen which has been previously heated, said heated bitumen being used in an amount of 1% by weight, calculated on the amount by weight of said mineral component; and 4. allowing the material product of (3) to cool.
Claim 10
Dependent Claim
81 words
mixing with the heated mineral component of (1) a thermoplastic polymeric component, said polymeric component comprising diminutive polyethylene in an amount of 6% by weight, calculated on the amount by weight of said mineral component; 3. mixing with said mixture of (2) the bitumen which has been previously heated, said heated bitumen being used in an amount of 1% by weight, calculated on the amount by weight of said mineral component; and 4. allowing the material product of (3) to cool.
Claim 11
Dependent Claim
9 words
The material prepared by the method of claim 2.
Claim 12
Dependent Claim
9 words
The material prepared by the method of claim 3.
References Cited (Backward Citations)
US3112681A
Cited
US3336252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |