IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0486758
(1700-01-01)
|
우선권정보 |
DE-0037755 (1997-08-29); DE-0057553 (1997-12-23); DE-0026144 (1998-06-12); DE-0038770 (1998-08-26) |
국제출원번호 |
PCT/EP98/05438
(1998-08-27)
|
발명자
/ 주소 |
- Hildebrand, Gunter
- Richter, Ferdinand
- Matthai, Michael
- Iversen, Bruno
- Damm, Klaus-Werner
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
33 인용 특허 :
6 |
초록
▼
The invention relates to bitumen or asphalt for producing a road topping, whereby said bitumen or asphalt contains a proportion of paraffin obtained by Fischer-Tropsch synthesis (FT paraffin). The invention also relates to a road topping with said bitumen and to a method for producing a correspondin
The invention relates to bitumen or asphalt for producing a road topping, whereby said bitumen or asphalt contains a proportion of paraffin obtained by Fischer-Tropsch synthesis (FT paraffin). The invention also relates to a road topping with said bitumen and to a method for producing a corresponding road topping or roadway/covering using said bitumen.
대표청구항
▼
1. Road surface comprising a lower sand/gravel layer, a bituminous sub-base over the sand/gravel layer, and an upper asphalt/concrete layer or pavement, wherein bitumen of the bituminous sub-base and the pavement has a content of paraffin obtained by Fischer-Tropsch synthesis. 2. Road surface accord
1. Road surface comprising a lower sand/gravel layer, a bituminous sub-base over the sand/gravel layer, and an upper asphalt/concrete layer or pavement, wherein bitumen of the bituminous sub-base and the pavement has a content of paraffin obtained by Fischer-Tropsch synthesis. 2. Road surface according to claim 1, wherein a proportion of paraffin obtained by a Fischer-Tropsch synthesis is 0.5 to 10% based on the bitumen content. 3. Road surface according to claim 1, further comprising a binder layer, wherein the binder layer has a content of paraffin obtained by a Fischer-Tropsch synthesis. 4. Road surface according to claim 1, wherein the paraffin obtained by a Fischer-Tropsch synthesis has a melting point from about 68 to about 105° C. 5. Road surface according to claim 1, wherein the paraffin obtained by a Fischer-Tropsch synthesis at least partly comprises oxidized paraffin obtained by a Fischer-Tropsch synthesis. 6. Road surface comprising a lower sand/gravel layer, a bituminous sub-base over the sand/gravel layer, and an upper asphalt/concrete layer or pavement, wherein bitumen of the bituminous sub-base has a content of paraffin obtained by Fischer-Tropsch synthesis; and the pavement is a layer having a content of paraffin obtained by a Fischer-Tropsch synthesis. 7. Road surface according to claim 6, wherein the content of paraffin obtained by a Fischer-Tropsch synthesis in the pavement layer is 0.5 to 10% based on the bitumen content. 8. Method for the production of a road surface, comprising the steps of, in order to form a bituminous sub-base and a pavement upon the sub-base in roadbuilding, admixing an asphalt-containing bitumen with a paraffin obtained from a Fischer-Tropsch synthesis, the paraffin obtained by a Fischer-Tropsch synthesis having a content in the sub-base from 0.5 to 10%, and from 0.5 to 5.0% in the pavement, based on the bitumen content. 9. Method according to claim 8, wherein the paraffin obtained by a Fischer-Tropsch synthesis is added to the liquid bitumen in solid form. 10. Method according to claim 8, wherein the paraffin obtained by a Fischer-Tropsch synthesis is admixed in form of granules, powder, flakes or pellets or in liquid form. 11. Method according to claim 8, wherein the paraffin obtained by a Fischer-Tropsch synthesis at least partly comprises oxidized paraffin obtained by a Fischer-Tropsch synthesis. 12. Method for the production of a road surface, comprising the steps of, in order to form a bituminous sub-base in roadbuilding, admixing an asphalt-containing bitumen with a paraffin obtained from a Fischer-Tropsch synthesis, the paraffin obtained by a Fischer-Tropsch synthesis having a content from 0.5 to 10%, preferably from 2.5 to 7.5%, based on the bitumen content; and wherein in order to form a pavement layer in roadbuilding, an asphalt-containing bitumen is admixed with paraffin obtained by a Fischer-Tropsch synthesis in a proportion from 0.5 to 5% based on the bitumen content. 13. Method for the production of a road surface, comprising the steps of, in order to form a bituminous sub-base in roadbuilding, admixing an asphalt-containing bitumen with a paraffin obtained from a Fischer-Tropsch synthesis, the paraffin obtained by a Fischer-Tropsch synthesis having a content from 0.5 to 10%, preferably from 2.5 to 7.5%, based on the bitumen content; and further comprising the steps of providing a binder layer, wherein in order to form the binder layer, admixing an asphalt-containing bitumen with FT paraffin in a proportion from 0.5 to 5% based on the bitumen content.
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