Oily polyurethane transparent primer for decoration and preparation method thereof

A technology of oil-based polyurethane and transparent primer, applied in the field of coatings, can solve the problems that oil-based coatings cannot be completely replaced, and achieve the effects of improving construction operability and storage stability, fast drying speed and hardness, and excellent compatibility

Inactive Publication Date: 2012-06-13
东莞大宝化工制品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In China's wood coating decoration and furniture industry, there are no odorless solvent-based PU coating products. Low-odor coatings in paint factories mainly use latex paint and water-based wood paint. However, water-based wood paint is immature in the domestic market. The bottleneck has not yet been broken through, so it is still unable to completely replace oil-based paints. The market volume is less than 1% of solvent-based wood lacquers. The mainstream of the current furniture and home decoration market is still solvent-based wood lacquers, and odorless solvent-based PU products are on the market. Few companies on the market launch

Method used

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  • Oily polyurethane transparent primer for decoration and preparation method thereof
  • Oily polyurethane transparent primer for decoration and preparation method thereof
  • Oily polyurethane transparent primer for decoration and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A healthy type oily polyurethane transparent primer for decoration, including component A, component B and diluent, the ratio of parts by weight of component A to component B is 2:1;

[0046] Wherein, the first component includes the following raw materials calculated by weight percentage:

[0047] Modified low molecular weight polyol resin 64.5%, ester solvent 10.7%, dispersant 0.7%, grinding powder 3.0%, talcum powder 18%, defoamer 0.35%, leveling agent 0.15%, anti-settling agent 2.6%; The solid content of the first component is 66.2%.

[0048] The B component has a solid content of 55%, and includes the following raw materials calculated by weight percentage: 20% of toluene diisocyanate trimer, 60% of toluene diisocyanate adduct, and 20% of solvent.

[0049] Described diluent comprises following raw material calculated by weight percentage:

[0050] Ethyl acetate (EAC) 10%, n-butyl acetate (BAC) 85%, propylene glycol monomethyl ether propionate (PMP) 5%.

[0051] ...

Embodiment 2

[0059] A healthy type oily polyurethane transparent primer for decoration, including component A, component B and diluent, the ratio of parts by weight of component A to component B is 2:1;

[0060] Wherein, the first component includes the following raw materials calculated by weight percentage:

[0061] Modified low molecular weight polyol resin 70%, ester solvent 8.6%, dispersant 0.4%, grinding powder 4%, talcum powder 15%, defoamer 0.65%, leveling agent 0.05%, anti-settling agent 1.3%; The solid content of the first component is 68%.

[0062] The B component has a solid content of 52.5%, and includes the following raw materials calculated by weight percentage: 30% of toluene diisocyanate trimer, 50% of toluene diisocyanate adduct, and 20% of solvent.

[0063] Described diluent comprises following raw material calculated by weight percentage:

[0064] Ethyl acetate (EAC) 20%, n-butyl acetate (BAC) 70%, propylene glycol monomethyl ether propionate (PMP) 10%.

[0065] The ...

Embodiment 3

[0073] A healthy type oily polyurethane transparent primer for decoration, including component A, component B and diluent, the ratio of parts by weight of component A to component B is 2:1;

[0074] Wherein, the first component includes the following raw materials calculated by weight percentage:

[0075] Modified low molecular weight polyol resin 67%, ester solvent 10.4%, dispersant 0.5%, grinding powder 3.5%, talc powder 16%, defoamer 0.5%, leveling agent 0.1%, anti-settling agent 2%; The solid content of the first component is 66.4%.

[0076] The B component has a solid content of 53.75%, and includes the following raw materials calculated by weight percentage: 25% of toluene diisocyanate trimer, 55% of toluene diisocyanate adduct, and 20% of solvent.

[0077] Described diluent comprises following raw material calculated by weight percentage:

[0078] Ethyl acetate (EAC) 15%, n-butyl acetate (BAC) 77%, propylene glycol monomethyl ether propionate (PMP) 8%.

[0079] The m...

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Abstract

The invention relates to the technical field of paint, and in particular relates to an oily polyurethane transparent primer for decoration and a preparation method thereof. The oily polyurethane transparent primer comprises a component A, a component B and a diluting agent, wherein the weight part ratio of the component A to the component B is 2:1; the component A comprises modified low-molecular-weight polyol resin, an ester solvent, a dispersing agent, polishing powder, talcum powder, a defoaming agent, a flatting agent and an anti-precipitation agent. The oily polyurethane transparent primer maintains the advantages of the traditional polyurethane paint, such as good construction property, good water tolerance and high hardness; and simultaneously, tasteless effect can also be achieved after drying on the basis of low VOC (volatile organic compound).

Description

Technical field: [0001] The invention relates to the technical field of coatings, in particular to an oily polyurethane transparent primer for decoration and a preparation method thereof. Background technique: [0002] Generally, wood coating products can smell a large smell within one month after drying, which is mainly the smell of organic solvents, and these solvents are distributed in the atmosphere, causing serious pollution. my country is a big country in the production of coatings. Based on 10 years of statistics, the total production of wood coatings in China has exceeded 1 million tons. It is conceivable that a lot of organic solvents are volatilized into the air. In addition, there are still harmful compounds in the coatings. Pollution caused by the use of heavy metal pigments and pollution from harmful additives, etc. These pollutions cause damage to the ecological environment, pose a threat to human health, and are not conducive to the long-term development of th...

Claims

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Application Information

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IPC IPC(8): C09D175/06C09D175/14C09D7/12
Inventor 陈贺生
Owner 东莞大宝化工制品有限公司
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