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Coating composition for multifunctional wall and coating system for wall

A composition and coating technology, applied in the direction of coating, can solve the problems of poor weather resistance, difficult toning, easy powdering, etc., and achieve the effect of saving coating materials, not easy to crack, and excellent weather resistance

Active Publication Date: 2021-11-30
威士伯涂料(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in view of the characteristics of the putty formula itself, most of this multifunctional putty has defects such as easy cracking, poor weather resistance, easy chalking, difficult to color, etc., and cannot be directly matched with the topcoat to form a satisfactory coating system

Method used

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  • Coating composition for multifunctional wall and coating system for wall
  • Coating composition for multifunctional wall and coating system for wall
  • Coating composition for multifunctional wall and coating system for wall

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0076] The preparation of the coating composition of the present invention can be accomplished by any suitable mixing method known to those of ordinary skill in the art. For example, a coating composition may be prepared by adding the aqueous dispersion, filler and additional additives, if present, to a container and stirring the resulting mixture until homogeneous. Alternatively the coating composition can be prepared by mixing some of the additional additives with the filler and then adding the aqueous dispersion and the remainder of the additional additives to form a homogeneous mixture. Additional water can be added during preparation of the coating composition, if desired.

[0077] The aqueous coating composition of the present invention can be applied by conventional methods known to those of ordinary skill in the art. Preferably, the coating composition is applied by brushing, knife coating, spraying and other application methods known in the art. For example, putty p...

Embodiment 1

[0087] Embodiment 1: coating composition for body of wall

[0088] At a stirring speed of 600r / min to 800r / min at a medium speed, add the components 1-9 in Table 2 in sequence, and disperse for 15 minutes until the cellulose is completely dissolved. Then, at a high stirring speed of 1500r / min, add components 10-12 in sequence, and disperse for 20 minutes until the fineness is less than 70 microns. Next, at a medium stirring speed of 800r / min, add components 13-15 in sequence and disperse for 10 minutes, then continue to add components 16-18 and disperse for 10 minutes. Add water-based color paste for coloring as needed. This step can be skipped if a white coating composition is desired. Finally, at a stirring speed of 1000 r / min at high speed, component 19 was added and dispersed for 5 minutes. After the mixing is completed, the obtained sample is sent to the QC test index, and it is packaged after passing the test. The dosage of each component is shown in Table 2 below....

Embodiment 2

[0101] Example 2: Coating System

[0102] The multifunctional paint composition (multifunctional primer) of the present invention is combined with various water-based colorful topcoats to form a colorful coating system. Then, the obtained multi-color coatings were compared with the multi-color coating systems formed by conventional methods. The results show that the coating system according to the present invention meets the requirements of the standard GB / T 9779-2015, and there is not much difference in performance from the conventional multi-layer coating system for walls, and has a strong sense of layering and a remarkable three-dimensional effect ,Such as Figure 1-3 shown.

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Abstract

The invention relates to a multifunctional wall coating composition and a wall coating system. Specifically, the present invention relates to a wall coating composition with three-in-one functions of putty, primer and intermediate coating, which comprises, relative to the total weight of the coating composition: 2.5 to 30% by weight of aqueous dispersion Aqueous dispersion comprising polymer particles having a glass transition temperature of 15°C or higher; 50 to 75% by weight of fillers which do not contain or are capable of generating carbonate or carbonic acid a composition of hydrogen radicals; and 0 to 40% by weight of additional additives. The invention also relates to a coating system for walls comprising a coating formed from the coating composition.

Description

technical field [0001] The invention relates to a multifunctional wall coating composition and a wall coating system. Specifically, the present invention relates to a wall coating composition having three-in-one functions of putty, primer and intermediate coating, and a wall coating system comprising a coating formed from the coating composition. Background technique [0002] In the field of construction, the coating system used to level the surface of the wall usually includes a leveling putty, a putty layer, a primer layer, a mid-coat layer and a topcoat layer. In order to obtain an ideal flat wall surface, the above coating layers are usually indispensable. From a construction point of view, reducing one coating layer means saving coating materials, manpower and time costs. Therefore, it is desirable to be able to reduce one or more coating layers. [0003] At present, multifunctional putty has appeared on the market to replace the putty and primer layer. However, in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D125/14C09D131/04C09D7/61
CPCC08K2003/2241C09D125/14C09D131/04C09D133/04C09D143/04C09D7/61C08K3/22C08K3/34C08K3/36
Inventor 刘忱
Owner 威士伯涂料(广东)有限公司