http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3887339-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_103689de83223684861385d7f611b25e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2103-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B40-0658 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B40-0039 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-2694 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B22-141 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-188 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B40-00 |
| filingDate | 2019-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_77808fdfad692f144066f1c406f6b707 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_912cd24f01f332607099bdf12d04b0e0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aefffe230c18a484a09601c40e1e359a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f43a03b0642b973c7ae07bcb006fe3bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57089f7eb8f9f2fc1373d3f94663f03a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4969c6af1e906223946ae604c4c1622b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cdd0ad662f3ff8ff44db0f7016d20582 |
| publicationDate | 2021-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3887339-A1 |
| titleOfInvention | Additives for cements comprising ye'elimite |
| abstract | The present invention discloses a combination of set retarders and regulators for the hydration reaction of cementitious binders comprising clinkers based on Ye'elimite. The set retarders are calcium complexing agents, preferably selected from the group consisting of sugar acids, sugars, sugar alcohols, hydroxycarboxylic acids, phosphates, phosphonates, borates and amines. The regulator is of the general formula (I) where M is H, NhU or chosen from a monovalent or divalent metal of the groups la lla, IlIa, lb, IIb, IVb, Vlb, Vllb or Vlllb of the periodic table of elements, and, where M is a divalent metal, a second equivalent of R-SO3 is present, and where, preferably, M is chosen from the group consisting of H, NH4, Li, Na, K, MgX, CaX, or NiX with X = RSO3, and where R is chosen from H, NH2, OH or from a hydrocarbon chain with 1-18 C atoms which may be substituted by N and/or O and/or which may be linear or branched and/or which may contain one or more unsaturated bonds and/or cycloaliphatic and/or aromatic moieties. The combination of set retarders and regulators of the present invention is useful to control the hydration reaction at early age of said cementitious binders comprising clinkers based on Ye'elimite. More particularly, it is possible by a combination of set retarders and regulators of the present invention to prolong the open time and at the same time accelerate the setting of a cementitious mixture comprising cementitious binders comprising clinkers based on Ye'elimite. The present invention also discloses uses of a combination of set retarders and regulators of the present invention as well as methods for the control of the hydration reaction at early age of cementitious binders comprising clinkers based on Ye'elimite. |
| priorityDate | 2018-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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