| (19) |
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(11) |
EP 3 838 864 A8 |
| (12) |
CORRECTED EUROPEAN PATENT APPLICATION |
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Note: Bibliography reflects the latest situation |
| (15) |
Correction information: |
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Corrected version no 1 (W1 A1) |
| (48) |
Corrigendum issued on: |
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18.08.2021 Bulletin 2021/33 |
| (43) |
Date of publication: |
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23.06.2021 Bulletin 2021/25 |
| (22) |
Date of filing: 19.12.2019 |
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| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
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Designated Extension States: |
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BA ME |
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Designated Validation States: |
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KH MA MD TN |
| (71) |
Applicant: HeidelbergCement AG |
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69120 Heidelberg (DE) |
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| (72) |
Inventors: |
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- MOLFETTA, Marcello Antonio
24124 BERGAMO (IT)
- GOISIS, Marco
24123 BERGAMO (IT)
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| (74) |
Representative: Zellentin & Partner mbB Patentanwälte |
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Rubensstraße 30
67061 Ludwigshafen
67061 Ludwigshafen (DE) |
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| (54) |
ELECTRICALLY CONDUCTIVE BINDER FOR MANUFACTURING HEATABLE BUILDING PARTS |
(57) Electrically conductive binder comprising a cement, a sterically stabilizing superplasticizer,
a rheology modifier, graphite particles with carbon content higher than 60 %, and
graphene, use of the binder for manufacturing heatable building elements, preferably
underfloor heating layers and/or heating panels and/or heating layers close to a wall,
as well as floors with underfloor heating systems comprising a layer from the binder.