Unlock instant, AI-driven research and patent intelligence for your innovation.

Polyurea paint formula and polyurea paint prepared by polyurea paint formula

A coating and polyurea technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of pigment wetting, lack of decoration, high price, etc., and achieve excellent adhesion, high cross-linking density, and good impact resistance The effect of toughness

Inactive Publication Date: 2013-12-11
ZHONGSHAN BRITE DAY COATING RAW MATERIALS
View PDF6 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Spray polyurea is a new material and new technology with excellent performance developed in recent years. From the first generation of aromatic to the second generation of aliphatic and then to the third generation of polyaspartate polyurea, each has its own advantages and disadvantages. There are also problems of too fast response, requiring expensive special spraying equipment, suitable for large-scale projects, requiring transitional coating to solve the problems of adhesion, pigment wetting and lack of decoration.

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
  • Polyurea paint formula and polyurea paint prepared by polyurea paint formula
  • Polyurea paint formula and polyurea paint prepared by polyurea paint formula
  • Polyurea paint formula and polyurea paint prepared by polyurea paint formula

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Preparation of component A

[0033] The first step is to prepare a prepolymer according to the molar ratio of functional groups -NCO / -OH=2:1: add 1.2mol H12MDI to a 4-necked bottle, stir nitrogen and raise the temperature to 45°C, add 0.6mol in batches with a water content lower than 0.05% 2,4-diethyl-1,5-pentanediol, after reacting at 45°C to 65°C for 4 hours, continuously measure the NCO content, stop the reaction and cool down when the mass percentage of NCO changes ≤0.05%, use Adjust the viscosity of DBE with a water content of less than 0.05%, and make it a solid content of 75%. The obtained prepolymer is a colorless and transparent liquid with a viscosity of 980mPa.s / 45°C and NCO=9.15%, sealed for use.

[0034] The second step is to prepare component A according to the molar ratio of functional groups -NH - / -NCO = 2:1: add 1.2mol Desmophen NH 1420 to a 4-necked bottle, stir and blow nitrogen and raise the temperature to 45°C, add 0.6mol first in batches The p...

Embodiment 2

[0044] 1) Preparation of component A

[0045] The first step is to prepare a prepolymer according to the functional group molar ratio -NCO / -OH=2:1: add 1.2mol IPDI to a 4-necked bottle, stir and blow nitrogen and raise the temperature to 45°C, add 0.6mol in batches with a water content lower than 0.05% 2-ethyl-1,3-hexanediol, after reacting for 4 hours between 45°C and 65°C, continuously measure the NCO group content, stop the reaction when the change of NCO mass percentage is ≤0.05%, and use water Adjust the viscosity with less than 0.05% DBE, and make the solid content to 75%. The obtained prepolymer is a colorless and transparent liquid with a viscosity of 1030mPa.s / 45℃, NCO=10.50%, sealed for use.

[0046]The second step is to prepare component A according to the molar ratio of functional groups -NH - / - NCO = 2:1: add 1.2mol Desmophen NH 1520 to a 4-necked bottle, stir nitrogen and raise the temperature to 45°C, add 0.6mol in batches in the first step The synthesized prep...

Embodiment 3

[0056] 1) Preparation of component A

[0057] The first step is to prepare a prepolymer according to the functional group molar ratio -NCO / -OH=2:1: add 1.2mol IPDI to a 4-necked bottle, stir and blow nitrogen and raise the temperature to 45°C, add 0.6mol in batches with a water content lower than 0.05% 1,4-butanediol, after reacting for 4 hours between 45°C and 65°C, continuously measure the NCO group content. When the change of NCO mass percentage is ≤0.05%, the reaction is stopped and the temperature is lowered, and the water content is lower than 0.05%. DBE adjusts the viscosity and makes the solid content 75%. The obtained prepolymer is a colorless transparent liquid with a viscosity of 1180mPa.s / 45°C and NCO=11.68%. It is sealed for use.

[0058] The second step is to prepare component A according to the functional group molar ratio -NH - / -NCO = 2:1: add 1.2mol Desmophen NH 1520 and an appropriate amount of DBE with a water content of less than 0.05% in a 4-necked bottle...

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
Impact resistanceaaaaaaaaaa
Hardnessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a polyurea paint formula, and polyurea paint prepared by the polyurea paint formula.The polyurea paint formula comprises a component A and a component B, wherein the component A is aliphatic polyurea resin with an active group of R-NH-R'; the component B is an isocyanate prepolymer with an active group of -NCO; and the functional group mole ratio (-NCO / -NH-) of the component A to the component B is (1.0-1.2):1.0. Compared with the prior art, the formula and the paint have the advantages that: 1) the polyurea paint can be brushed and rolled like the traditional polyurethane bicomponent paint, or constructed by common spraying equipment, and special spraying equipment and a transition coating are not required; 2) since the crosslinking density of a coating is high, a film former is free from unsaturated double bonds, benzene rings and ether bonds easily damaged by ultraviolet rays, and contains rich hydrogenation hexatomic rings, urea bonds, ammonia ester bonds and hydrogen bonds, so that the adhesion of the coating is excellent during film formation, and the coating has above 3H rigidity and good impact toughness; and 3) a coating material of the paint is applicable to base materials such as a tinplate plate, a stainless steel plate, a metal water pipe, glass, PVC (polyvinyl chloride), ABS (acrylonitrile butadiene styrene), polyester and concrete.

Description

technical field [0001] The invention relates to a polyurea coating formulation and a polyurea coating prepared by using the same. Background technique: [0002] Spray polyurea is a new material and new technology with excellent performance developed in recent years. From the first generation of aromatic to the second generation of aliphatic and then to the third generation of polyaspartate polyurea, each has its own advantages and disadvantages. There are also problems that the reaction speed is too fast, expensive special spraying equipment is required, it is suitable for large-scale projects, and a transitional coating is needed to solve the problems of adhesion, pigment wetting and lack of decoration. Contents of the invention [0003] The purpose of the present invention is to provide a polyurea coating formula, the polyurea coating prepared by using the formula can be applied like a traditional polyurethane two-component coating, without special spraying equipment and...

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
IPC IPC(8): C09D175/02C08G18/32C08G18/60C08G18/10
Inventor 李居圣
Owner ZHONGSHAN BRITE DAY COATING RAW MATERIALS
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com