Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Solvent-free polyurethane self-leveling floor topcoat and preparation process thereof

A solvent-free polyurethane and solvent-free technology, applied in the field of coatings, can solve the problems of difficult drying, easy discoloration, chalking, and limiting the use range of floors, and achieve excellent drying performance, eliminate surface bubbles, and improve the effect of anti-settling stability.

Active Publication Date: 2020-08-07
石家庄市油漆厂
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the floors in the market are mainly epoxy floors. Epoxy floors have high hardness and poor flexibility, and are prone to discoloration and powdering under ultraviolet radiation, and are difficult to dry at low temperatures. The scope of use of the floor

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
  • Solvent-free polyurethane self-leveling floor topcoat and preparation process thereof
  • Solvent-free polyurethane self-leveling floor topcoat and preparation process thereof
  • Solvent-free polyurethane self-leveling floor topcoat and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0040] The weight composition of solvent-free hydroxy alkyd resin raw materials is shown in the following table:

[0041]

[0042] The solvent-free hydroxy alkyd resin of embodiment 1-3 is prepared by the following steps:

[0043] Step a: Add castor oil into the reaction kettle, stir and heat up to 200°C, stop stirring and add catalyst, when stirring continues to heat up to 210°C, stop stirring and add glycerin, start stirring and heat up to 225±2°C, keep the temperature for 1h;

[0044] Step b: Cool down to 160°C, stop stirring, add adipic acid and petroleum xylene, and fill the water separator with petroleum xylene;

[0045] Step c: raise the temperature to 225±2°C, measure the acid value after 3 hours of heat preservation, and vacuumize when the acid value drops below 1;

[0046] Step d: vacuumize and cool down when the solid content reaches 99% or more, cool down to 60°C and filter with 120-mesh silk cloth to obtain a solvent-free hydroxy alkyd resin.

[0047] The sol...

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

No PUM Login to View More

Abstract

The invention provides a solvent-free polyurethane self-leveling floor finish, comprising component A and component B, wherein component A is composed of the following raw materials in parts by weight: 40-60 parts of solvent-free hydroxy alkyd resin, dispersant 0.4-1.0 parts, 0.8-1.7 parts of defoamer, 3-5 parts of titanium dioxide, 0.1-1 parts of carbon black, 0.1-0.5 parts of fumed silica, 0.5-1 parts of organic bentonite, 3-10 parts of powdered molecular sieves, Silica powder 20-30 parts, wherein component B is: aliphatic isocyanate polymer. The solvent-free polyurethane self-leveling floor finish has excellent strength, weather resistance and wear resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a solvent-free polyurethane self-leveling floor finish, and at the same time, the invention also relates to a preparation process of the coating. Background technique [0002] At present, the floors in the market are mainly epoxy floors. Epoxy floors have high hardness and poor flexibility, and are easy to change color and pulverize under the irradiation of ultraviolet rays, and are difficult to dry at low temperatures. This is a serious limitation. The scope of use of the floor. Polyurethane floor not only has excellent elasticity and weather resistance, but also can be dried at low temperature. Contents of the invention [0003] The invention provides a solvent-free polyurethane self-leveling floor finish, which has excellent elasticity, dryness, impact resistance, abrasion resistance and weather resistance. [0004] A solvent-free polyurethane self-leveling floor finish, ...

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 Patents(China)
IPC IPC(8): C09D175/06C09D7/61C09D7/65C08G18/42C08G63/49
CPCC08G18/4288C08G63/48C08K3/04C08K3/346C08K3/36C08K2003/2241C09D175/06
Inventor 祁佩杨宁王勋韩小鹏何路杨左万杰
Owner 石家庄市油漆厂
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com