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Additive containing a superplasticizer and a copolymer

A technology of flow improver and additive, applied in the field of dispersing agent of mineral binder composition, mineral binder composition and the formed body obtained therefrom, can solve the problems of high cost, complicated application of solutions, etc.

Active Publication Date: 2018-07-31
SIKA TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But said solutions are usually complex and expensive to apply

Method used

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  • Additive containing a superplasticizer and a copolymer
  • Additive containing a superplasticizer and a copolymer
  • Additive containing a superplasticizer and a copolymer

Examples

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Embodiment Construction

[0016] A first aspect of the invention relates to additives, in particular dispersants for solid particles, especially for mineral binder compositions, comprising:

[0017] a) flow improvers, and

[0018] b) a copolymer having a polymer backbone and side chains attached to the polymer backbone, said copolymer comprising at least one ionizable monomer unit M1 and at least one monomer unit M2 with side chains , wherein the copolymer has a non-random distribution of monomeric units M1 and / or monomeric units M2 in the direction along the polymer backbone.

[0019] Flow improvers and copolymers differ chemically and / or structurally. When the flow improver is a polymer, it especially has a random or statistical distribution of monomers.

[0020] flow improver

[0021] In the present context, the term "flow improver" denotes in particular a substance capable of improving the flowability of a water-mixable mortar composition and / or concrete composition and / or reducing the water de...

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Abstract

The invention relates to an additive, in particular a dispersant for solid particles, in particular a dispersant for mineral binder compositions, comprising the following: a) a superplasticizer and b)a copolymer with a polymer backbone and side chains bonded thereto, comprising at least one ionizable monomer unit M1 and at least one side chain-supporting monomer unit M2. The copolymer has a non-random distribution of the monomer units M1 and / or the monomer units M2 in a direction along the polymer backbone, and the superplasticizer and the copolymer differ chemically and / or structurally.

Description

technical field [0001] The invention relates to additives, in particular dispersants for solid particles, in particular for mineral binder compositions, comprising flow improvers and copolymers. The invention also relates to the use of said additives as dispersants for solid particles, mineral binder compositions and shaped bodies obtained therefrom. Background technique [0002] Dispersants or flow improvers are used in the construction industry as plasticizers or water reducers for mineral binder compositions such as concrete, mortar, cement, gypsum and chalk. Dispersants are usually organic polymers which are added to the mixing water or in solid form to the binder composition. The consistency of the binder composition during processing and its properties in the cured state can thus be varied in an advantageous manner. [0003] Known particularly effective dispersants are, for example, polycarboxylate-based comb polymers (PCE). Such comb polymers have a polymer backbon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B40/00
CPCC04B40/0039C04B2103/0061C04B2103/0063C04B2103/308C04B2103/408C04B24/2605C04B2103/30C04B24/06C04B24/163C04B24/18C04B24/223C04B24/226C04B2103/006C04B24/2647C04B24/2658C04B24/2641C04B28/02C04B40/0042C04B2103/32
Inventor J·魏德曼L·弗伦兹J·齐默尔曼
Owner SIKA TECH AG
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