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

Waterborne polyurethane dispersion body and preparation method thereof

A water-based polyurethane and dispersion technology, applied in polyurea/polyurethane coatings, polyurea/polyurethane adhesives, non-polymer adhesive additives, etc., can solve problems such as poor bonding ability of low surface energy materials, and achieve Wide substrate applicability, low cost effect

Inactive Publication Date: 2018-09-04
肇庆市华莱特复合新型材料有限公司
View PDF10 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that existing water-based polyurethane dispersions have poor bonding ability for low surface energy materials, need to use curing agent in combination to enhance thermal stability during use, and need to be treated in order to improve the bonding effect before use. Problems with surface pretreatment of target materials

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
  • Waterborne polyurethane dispersion body and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0033] Polyester polyol, 100 parts; Diisocyanate, 45 parts; Dimethylolpropionic acid, 2 parts; 1,4-Butanediol, 0.5 parts; Trimethylolpropane, 2 parts; Carbodiimide hydrochloride, 1 part; dopamine hydrochloride, 2 parts; triethylamine, 1.2 parts; deionized water, 144.3 parts.

specific Embodiment 2

[0034] Polyester polyol, 100 parts; Diisocyanate, 20 parts; Dimethylolpropionic acid, 6 parts; 1,4-Butanediol, 3 parts; Trimethylolpropane, 4 parts; Methylethylketoxime, 10 parts; Carbodiimide hydrochloride, 2 parts; dopamine hydrochloride, 4 parts; triethylamine, 1.8 parts; deionized water, 149.2 parts.

specific Embodiment 3

[0035] Polyester polyol, 100 parts; Diisocyanate, 32.5 parts; Dimethylolpropionic acid, 4 parts; 1,4-Butanediol, 1.75 parts; Trimethylolpropane, 3 parts; Carbodiimide hydrochloride, 1.5 parts; dopamine hydrochloride, 3 parts; triethylamine, 1.5 parts; deionized water, 145.25 parts.

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 discloses a waterborne polyurethane dispersion body and a preparation method thereof, wherein the waterborne polyurethane dispersion body is prepared from the following ingredients and raw materials in proportion: 100 parts of polyester polyol, 20 to 45 parts of diisocyanate, 2 to 6 parts of dimethylolpropionic acid, 0.5 to 3 parts of 1,4-butanediol, 2 to 4 parts of trimethylolpropane, 2 to 10 parts of methyl ethyl ketoxime, 1 to 2 parts of carbodiimide hydrochloride, 2 to 4 parts of 3-hydroxytyramine hydrochloride, 1.2 to 1.8 parts of triethylamine and 110 to 160 parts of deionized water. An adhesion unit containing catechol groups and polyurethane containing sealed isocyanate functional groups are combined; an adhesion material with high heat resistance, low cost and wide substrate applicability is obtained through preparation.

Description

technical field [0001] The invention relates to the technical field of coatings and shoe adhesives, in particular to an aqueous polyurethane dispersion and a preparation method thereof. Background technique [0002] At present, the common water-based polyurethane dispersions on the market need to be pre-treated with a treatment agent on the surface of the coated target material to achieve a good adhesion effect, and it is always necessary to add a curing agent to the water-based polyurethane dispersion before use during use. way to improve heat resistance. [0003] For example, the Chinese invention patent CN102617824A discloses a water-based polyurethane curing agent and a water-based polyurethane dispersion used in conjunction with the water-based polyurethane curing agent. The raw material formula of the water-based polyurethane consists of 70-73% isophorone Diisocyanate, 8-9% polyethylene glycol monobutyl ether, 0.1-0.5% 2,4,6-tris(dimethylaminomethyl)phenol and 18-21% ...

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): C08G18/66C08G18/42C08G18/32C08G18/34C08K5/18C09J175/06C09J11/06C09D175/06C09D7/63
CPCC08G18/3206C08G18/348C08G18/42C09D175/06C09J11/06C09J175/06C09D7/63C08K5/18
Inventor 陈应华曾广福
Owner 肇庆市华莱特复合新型材料有限公司
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