Two-component polyurethane paint and preparation method thereof

A two-component polyurethane and one-component technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of paint film loss, yellowing, and expansion tank foam, etc., and achieves convenient operation, simple preparation process, wide range of effects

Inactive Publication Date: 2020-11-10
CHINA PAINT MFG CO SHENZHEN
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of this application is to provide a two-component polyurethane paint and its preparation method, aiming to solve the problem that the two-component polyurethane paint in the prior art is prone to loss of gloss, yellowing and foaming in the tank

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Two-component polyurethane paint and preparation method thereof
  • Two-component polyurethane paint and preparation method thereof
  • Two-component polyurethane paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0062] Second aspect, the present invention provides a kind of preparation method of two-component polyurethane paint, comprises the steps:

[0063] S01. Carrying out the first mixing treatment of alkyd resin, filler, dispersant, defoamer, matting powder, and butyl acetate to obtain the first mixture;

[0064] S02. The first mixture is subjected to a second mixing treatment with the dustproof agent, leveling agent, and dehydrating agent containing -NCO-groups to obtain the first component;

[0065] S03. An inert atmosphere is provided, and the butyl acetate and the dehydrating agent containing -NCO-groups are subjected to a third mixing treatment to obtain a second mixture;

[0066] S04. Perform a fourth mixing treatment on the second mixture and the curing agent to obtain the second component.

[0067] In the preparation method of the two-component polyurethane paint, the components of the first component and the components of the second component are respectively mixed to p...

Embodiment 1

[0077] Two-component polyurethane paint

[0078] The two-component polyurethane paint comprises a first component and a second component, wherein the first component comprises the following components in the following parts by weight:

[0079]

[0080] The second component includes the following components in the following parts by weight:

[0081] 69 parts of curing agent;

[0082] 30 parts of butyl acetate;

[0083] 1 part of dehydrating agent containing -NCO- group.

[0084] Wherein, the alkyd resin is selected from soybean oil alkyd resin with an oil degree≤40%, a solid content of 70%, and an acid value of 12 mg KOH / g;

[0085] The dehydrating agent containing -NCO-group is selected from p-toluenesulfonyl isocyanate;

[0086] The filler is selected from calcium carbonate;

[0087] The dispersant is selected from unsaturated polycarboxylic acid polymers;

[0088] Defoamer is selected from polysiloxane defoamer;

[0089] The matting powder is selected from silica-...

Embodiment 2

[0100] Two-component polyurethane paint

[0101] The two-component polyurethane paint comprises a first component and a second component, wherein the first component comprises the following components in the following parts by weight:

[0102]

[0103] The second component includes the following components in the following parts by weight:

[0104] 61 parts of curing agent;

[0105] 35 parts of butyl acetate;

[0106] 4 parts of dehydrating agent containing -NCO- group.

[0107] Wherein, the alkyd resin is selected from soybean oil alkyd resin with an oil degree≤40%, a solid content of 70%, and an acid value of 12 mg KOH / g;

[0108] The dehydrating agent containing -NCO-group is selected from p-toluenesulfonyl isocyanate;

[0109] The filler is selected from calcium carbonate;

[0110] The dispersant is selected from unsaturated polycarboxylic acid polymers;

[0111] Defoamer is selected from polysiloxane defoamer;

[0112] The matting powder is selected from silica...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
acid valueaaaaaaaaaa
acid valueaaaaaaaaaa
Login to view more

Abstract

The invention provides a two-component polyurethane paint, which comprises a first component and a second component. The first component comprises the following components by weight: 45-55 parts of alkyd resin; 20-30 parts of a filling material; 0.5-4 parts of a dehydrating agent containing -NCO- group; 0.5-1 part of a dispersing agent; 0.2-0.5 part of an antifoaming agent; 0.1-6 parts of extinction powder; 10-20 parts of butyl acetate; 2-4 parts of an anti-settling agent; and 0.2-0.5 part of leveling agent. The second component comprises the following components in parts by weight: 60-70 parts of a curing agent; 30-35 parts of butyl acetate; and 0.5-4 parts of a dehydrating agent containing an NCO group. The two-component polyurethane paint provided by the invention is excellent in waterremoval effect, and does not have the yellowing problem in the use process.

Description

technical field [0001] The application belongs to the technical field of coatings, and in particular relates to a two-component polyurethane paint and a preparation method thereof. Background technique [0002] Coatings are widely used in buildings, all kinds of hardware, decoration of industrial products, machinery, means of transportation and other fields, and are indispensable materials for daily production and protection of infrastructure. With the continuous development of society, people's demand for coatings continues to increase, and the functional requirements for coatings are also getting higher and higher. More and more coating products are used in high-performance fields. [0003] There are various types of coatings, which are classified according to the type of film formation. Coatings include natural resin paints, phenolic paints, alkyd paints, amino paints, nitro paints, epoxy paints, chlorinated rubber paints, Various types of acrylic paints, polyurethane pa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/14C08G18/71
CPCC08G18/711C08K2003/265C08L2205/035C09D175/14C08L83/04C08L77/00C08L35/00C08K3/26C08K3/36
Inventor 罗成王泽继
Owner CHINA PAINT MFG CO SHENZHEN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap