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Thin, transparent and flash anti-shrinkage top-coat as well as preparation method and use method of thin, transparent and flash anti-shrinkage top-coat

An anti-shrinkage, clear topcoat technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve problems such as poor stability, affecting transparency and gloss retention, organic matter escape, etc., to achieve excellent gloss and hardness, Excellent transparency and gloss retention, environmental protection and health optimization effect

Pending Publication Date: 2022-07-29
上海君子兰新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Publication number is that the Chinese invention patent of CN111978833A discloses a kind of highly transparent, high-heavy coating matte clear topcoat, through alkyd resin, saturated polyester resin, dispersant, leveling agent, n-butyl acetate , thixotropic resin, anti-settling pulp, propylene glycol methyl ether ester, quarter nitrocellulose pulp, aldehyde and ketone resin pulp, high boiling point flow aid, methyl isobutyl ketone to prepare a highly transparent, high recoating However, in the published patent, propylene glycol methyl ether is a flammable and explosive liquid. During use, if it is exposed to strong light or exposed to high temperature, it may cause organic matter to escape, resulting in Explosive vapor / air mixture, affects clarity and gloss retention, poor stability

Method used

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  • Thin, transparent and flash anti-shrinkage top-coat as well as preparation method and use method of thin, transparent and flash anti-shrinkage top-coat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A thin, transparent, anti-shrinkage clear topcoat, the preparation raw materials include A component and B component, and the weight ratio of A component and B component is 1:0.5;

[0073] The raw materials for the preparation of the A component, by weight percentage, include: 40% of acrylic resin, 20% of cellulose organic acid ester, 12% of auxiliary agents, 3% of fillers, and solvent supplementary balance to 100%.

[0074] The raw materials for the preparation of the B component, in terms of weight percentage, include: 30% solvent, 0.5% dehydrating agent, and curing agent supplementary balance to 100%.

[0075] Described acrylic resin is hydroxy acrylic resin, model 7313-1-60, purchased from Changxing, Taiwan, China;

[0076] Described cellulose organic acid ester is cellulose acetate;

[0077] The filler is silica, the porosity of the silica is 1.8mL / g, model: ED-2, purchased from Grace Company;

[0078] The auxiliary agent includes a dispersant, a defoaming agent,...

Embodiment 2

[0095] A thin, transparent, anti-shrinkage clear topcoat, the preparation raw materials include A component and B component, and the weight ratio of A component and B component is 1:0.5;

[0096] The raw materials for the preparation of the A component, by weight percentage, include: 35% of alkyd resin, 15% of cellulose organic acid ester, 8% of auxiliary agents, 3% of fillers, and solvent supplementary balance to 100%.

[0097] The raw materials for the preparation of the B component, in terms of weight percentages, include: 25% solvent, 0.2% dehydrating agent, and curing agent supplementary balance to 100%.

[0098] Described alkyd resin model 3807-B-65 was purchased from Changxing, Taiwan, China;

[0099] Described cellulose organic acid ester is cellulose acetate;

[0100] The filler is silica, the porosity of the silica is 1.8mL / g, model: ED-2, purchased from Grace Company;

[0101] The auxiliary agent includes a dispersant, a defoaming agent, a leveling agent, and a ha...

Embodiment 3

[0115] A thin, transparent, anti-shrinkage clear topcoat, the preparation raw materials include A component and B component, and the weight ratio of A component and B component is 1:0.2;

[0116] The raw materials for the preparation of the A component, by weight percentage, include: 45% of acrylic resin, 25% of cellulose organic acid ester, 15% of auxiliary agents, 8% of fillers, and solvent supplementary balance to 100%.

[0117] The raw materials for the preparation of the B component, in terms of weight percentage, include: 35% solvent, 0.8% dehydrating agent, and curing agent supplementary balance to 100%.

[0118] Described acrylic resin is hydroxy acrylic resin, model 7313-1-60, purchased from Changxing, Taiwan, China;

[0119] Described cellulose organic acid ester is cellulose acetate;

[0120] The filler is silica, the porosity of the silica is 1.8mL / g, model: ED-2, purchased from Grace Company;

[0121] The auxiliary agent includes a dispersant, a defoamer, a leve...

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Abstract

The invention belongs to the technical field of C09D coatings, and particularly relates to a thin, transparent and flash anti-shrinkage top-coat as well as a preparation method and a use method thereof. The invention relates to a thin, transparent and flash anti-shrinkage top-coat, which is prepared from the following raw materials: a component A and a component B, the weight ratio of the component A to the component B is 1: (0.1-0.5); in the preparation process of the thin, transparent and flash anti-shrinkage varnish prepared by the invention, through the mutual synergistic effect of the dispersing agent, the defoaming agent, the flatting agent and the hand feeling additive, the problem of bubbles possibly occurring in the preparation process can be solved, and the problems of construction difficulty and possible pinhole phenomenon on the surface of solid wood in the construction process are solved; the thin, transparent and flash-proof shrinkage varnish provided by the invention has excellent stability, especially has excellent transparency and gloss retention in the long-time placement and use process, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of CO9D coatings, and more particularly relates to a thin, transparent and flash-proof shrink-proof clear topcoat and a preparation method and application method thereof. Background technique [0002] With the advancement of technology and people's higher and higher pursuit of quality of life, there are stricter requirements in terms of decoration personalization or quality, among which there are higher requirements in terms of decoration furniture design or selection. [0003] Therefore, high-end solid wood furniture has become a frequently used material in modern high-end customization because of its excellent light and natural texture. However, the general requirements for high-end wood are high permeability, no subsidence, no odor, thin paint film, etc., and the safety and environmental protection of the paint used on the surface of solid wood also has high requirements. The Chinese invention patent wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D175/06
CPCC09D175/04C09D175/06
Inventor 王海军汪启发易文强邓文根
Owner 上海君子兰新材料股份有限公司
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