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Anti-dust mortar composition

A composition, mortar technology, applied in the field of building products, which can solve the problems of hydrocarbon-based oil inhalation, major hazards, etc.

Active Publication Date: 2015-06-03
圣戈班伟伯(北京)建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, recently enacted regulations now address a significant inhalation hazard when certain hydrocarbon-based oils are used

Method used

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Experimental program
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Effect test

Embodiment

[0039] Dry mortar composition C1 was prepared by mixing the following components (the given percentages correspond to mass percentages):

[0040] 47% CEM Type I Portland Cement

[0041] 50% sand with particle size less than 1mm

[0042] 3% Vinnapas N 5010RE (Wacker) Latex

[0043] Starting from this reference composition C1, compositions C2 to C6 were prepared with the addition of different organic carbonates which are liquid at normal temperatures and have a purity greater than 95%, either alone or mixed with mineral oil:

[0044] • 1% propylene carbonate, relative to the total weight of composition C1. Composition C2 is thus obtained.

[0045] • 0.2% mineral oil Sivano 1 (from Cogelsa), relative to the total weight of composition C1. Composition C3 is thus obtained.

[0046] • 1% diethylhexyl carbonate, relative to the total weight of composition C1. Composition C4 according to the invention is thus obtained.

[0047] • 0.8% diethylhexyl carbonate and 0.2% Sivano 1 mi...

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Abstract

The invention relates to a composition of pulverulent mortar containing a binder, characterised in that it comprises at least: one mineral binder, an additive containing an organic carbonate of formula R1-O-(CO)-O-R2, comprising at least 5 carbon atoms, wherein the groups R1 and R2, that are the same or different, are cycloalkyl or aromatic, saturated or unsaturated, linear or cyclic, optionally branched, alkyl or alkylene hydrocarbon radicals, granular material, aggregates and / or sand or other inert loads.

Description

technical field [0001] The present invention relates to a powdery composition based on inorganic binders comprising anti-dust additives, a process for its preparation and the use of such compositions in the field of construction products, e.g. adhesive mortars, facade renders, interior renders, floors Application in floor finishings, screeds, joints, etc. Background technique [0002] These compositions based on hydraulic binders comprise different powdery components and are generally stored in the powder state in bags. During construction at the job site, these bags are emptied and the powder is mixed with water, referred to as a mixing operation. Once mixed, the product thus obtained can be applied on a selected support. [0003] The particles present in these compositions have different sizes from a few microns to hundreds of microns and between them can generate a large amount of dust emission, which is uncomfortable for the user especially when the product is handled ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/02C04B28/10C04B28/14C04B40/00C04B111/00C04B111/62
CPCC04B28/02C04B28/04C04B28/10C04B28/14C04B40/0028C04B2111/00517C04B2111/00672C04B2111/62Y02W30/91C04B24/00C04B24/2611C04B24/36C04B14/06C04B24/2623C04B14/108C04B14/28C04B18/08C04B18/141C04B18/146C04B2103/0057C04B2103/0088C04B2103/10C04B2103/20C04B2103/304C04B2103/408C04B2103/44C04B2103/46C04B2103/54C04B2103/67C04B24/04C04B24/08C04B40/00C04B2111/20
Inventor C·达席尔瓦E·塔布洛L·席尔瓦
Owner 圣戈班伟伯(北京)建材有限公司
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