WO2023046628 - THE USE OF A POLYMER COMPRISING SIDE CHAINS HAVING A STERICALLY HINDERED AMINE AS CHEMICAL ADMIXTURE FOR A CEMENTITIOUS MATERIAL
National phase entry:
Publication Number
WO/2023/046628
Publication Date
30.03.2023
International Application No.
PCT/EP2022/075953
International Filing Date
19.09.2022
Title **
[English]
THE USE OF A POLYMER COMPRISING SIDE CHAINS HAVING A STERICALLY HINDERED AMINE AS CHEMICAL ADMIXTURE FOR A CEMENTITIOUS MATERIAL
[French]
UTILISATION D'UN POLYMÈRE COMPRENANT DES CHAÎNES LATÉRALES RENFERMANT UNE AMINE STÉRIQUEMENT ENCOMBRÉE EN TANT QU'ADJUVANT CHIMIQUE POUR UN MATÉRIAU À BASE DE CIMENT
Applicants **
UNIVERSITEIT GENT
Inventors
HOOGENBOOM, Richard
MUHAMMAD, Metwally
DE SCHUTTER, Geert
LESAGE, Karel
Priority Data
21197878.8
21.09.2021
EP
Application details
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2068 | |
| EPO | Filing, Examination, Granting | 8387 | |
| Japan | Filing, Examination, Granting | 2247 | |
| South Korea | Filing, Examination, Granting | 2251 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,693
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
The present invention relates to the use of a polymer as chemical admixture, in particular as superplasticizer, in a cementitious material. The polymer has a backbone structure provided with a plurality of negatively charged groups and provided with a plurality of side chains. At least part of the side chains comprises a pendent group having a sterically hindered amine.The invention further relates to a cementitious composition comprising a chemical admixture, in particular a superplasticizer.[French]
La présente invention concerne l'utilisation d'un polymère en tant qu'adjuvant chimique, en particulier en tant que superplastifiant, dans un matériau à base de ciment. Le polymère a une structure de chaîne principale pourvue d'une pluralité de groupes portant une charge négative et pourvue d'une pluralité de chaînes latérales. Au moins une partie des chaînes latérales comprend un groupe pendant renfermant une amine stériquement encombrée. L'invention concerne en outre une composition à base de ciment comprenant un adjuvant chimique, en particulier un superplastifiant.