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1. EP3932885 - FREE-FLOWING POWDER COMPRISING A POROUS SUBSTRATE FUNCTIONALIZED WITH AT LEAST ONE ACCELERATOR

Office
European Patent Office
Application Number 20305753
Application Date 03.07.2020
Publication Number 3932885
Publication Date 05.01.2022
Publication Kind A4
IPC
C04B 20/10
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
20Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/-C04B18/159; Treatment of materials according to more than one of the groups C04B14/-C04B18/116; Expanding or defibrillating materials
10Coating or impregnating
C04B 28/02
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
02containing hydraulic cements other than calcium sulfates
CPC
C04B 20/107
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
20Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
10Coating or impregnating
1055with inorganic materials
107Acids or salts thereof
C04B 20/1022
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
20Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
10Coating or impregnating
1018with organic materials
1022Non-macromolecular compounds
C04B 2103/12
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2103Function or property of ingredients for mortars, concrete or artificial stone
10Accelerators; Activators
12Set accelerators
C04B 2103/0075
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2103Function or property of ingredients for mortars, concrete or artificial stone
0068Ingredients with a function or property not provided for elsewhere in C04B2103/00
0075Anti-dusting agents
C04B 28/02
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
02containing hydraulic cements other than calcium sulfates
C04B 2111/00482
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2111Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
00474Uses not provided for elsewhere in C04B2111/00
00482Coating or impregnation materials
Applicants SIKA TECH AG
Inventors SOUDIER JEROME
BEN HARRATH ALEXANDRE
Designated States
Priority Data 20305753 03.07.2020 EP
Title
(DE) RIESELFÄHIGES PULVER MIT EINEM PORÖSEN SUBSTRAT, DAS MIT MINDESTENS EINEM BESCHLEUNIGER FUNKTIONALISIERT IST
(EN) FREE-FLOWING POWDER COMPRISING A POROUS SUBSTRATE FUNCTIONALIZED WITH AT LEAST ONE ACCELERATOR
(FR) POUDRE À ÉCOULEMENT LIBRE COMPRENANT UN SUBSTRAT POREUX FONCTIONNALISÉ AVEC AU MOINS UN ACCÉLÉRATEUR
Abstract
(EN) The present invention relates to a free-flowing powder composition comprising at least one substrate, said substrate having pores and an external surface between said pores, wherein said external surface is functionalized with at least one accelerator for a hydraulic setting composition, said accelerator being liquid, or hygroscopic or deliquescent, and wherein after 15 minutes of immersion of said free-flowing powder composition in water at 20°C at least 80% in weight of said accelerator is solubilized, provided that said free-flowing powder composition is immersed in an amount of water sufficient so that the saturation concentration of said accelerator cannot be reached.The invention also relates to a method for preparing said free-flowing powder composition.The invention is further directed to the use of said free-flowing powder composition as an additive for mortar or concrete composition so as to provide an accelerating effect, an anti-ageing effect and an anti-dusting effect.The invention additionally concerns a dry mortar or concrete composition comprising a hydraulic binder, said free-flowing powder composition and a granulate, wet mortar or concrete composition and hardened body obtained therefrom.
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