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

Poly(vinyl acetate) dispersion, and paint formulation comprising thereof

一种分散体、单体的技术，应用在涂层等方向，能够解决不善于提供竞争性可洗性和早期抗粉化性、油漆稳定性问题等问题

Active Publication Date: 2017-05-10
DOW GLOBAL TECH LLC +1
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not good at providing competitive washability and early chalking resistance, especially in paints above 60% PVC
[0003] Research has been done and it has been found that phosphorous monomers such as phosphoethyl methacrylate (PEM) can greatly improve paint washability, but unfortunately present paint stability issues

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
  • Poly(vinyl acetate) dispersion, and paint formulation comprising thereof
  • Poly(vinyl acetate) dispersion, and paint formulation comprising thereof
  • Poly(vinyl acetate) dispersion, and paint formulation comprising thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] The preparation of paint formulations involves the process of selecting and mixing the appropriate paint ingredients in the correct proportions to provide a paint with specific processing and handling characteristics and a final dried paint film with the desired properties.

[0040] The paint formulations can be applied by conventional application methods such as brushing, rolling and spraying methods such as air atomized spray, air assisted spray, airless spray, high volume low pressure spray and air assisted airless spray .

[0041] Suitable substrates for paint application include concrete, cement board, medium density fiberboard (MDF) and particle board, gypsum board, wood, stone, metal, plastic, wallpaper, and textiles, among others. Preferably, all substrates are pre-coated with a water-based or solvent-based primer.

example

[0043] I. Raw materials

[0044] abbreviation Chemical material BA Butyl acrylate VA vinyl acetate IA itaconic acid SVS Sodium vinyl sulfonate AMPS Sodium 2-acrylamido-2-methyl-1-propanesulfonate SPS sodium persulfate t-BHP tert-butyl hydroperoxide IAA isoascorbic acid EDTA Ethylenediaminetetraacetic acid

[0045]

[0046]

[0047] II. Test procedure

[0048] 1. Washability

[0049] Panels were scraped with paint starting from the fixed end of the panel using a 175um film caster. The paint drawdowns were then air dried horizontally for 7 days in a constant temperature room (CTR). The brushes were submerged in soapy water overnight prior to use and then placed in the holder with the bristle side of the brush down to begin the test. The wiping medium is a 0.5% soap solution. More soap solution can be added to paint scrapers as needed. The number of cycles used to completely remove the paint...

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
refractive indexaaaaaaaaaa
refractive indexaaaaaaaaaa
Login to View More

Abstract

The present invention provides a polymer dispersion comprising by dry weight based on total dry weight of the polymer dispersion, a) from 60% to 95% a vinyl acetate monomer, b) from 0.2% to 2.5% a phosphorus-containing allylic monomer; and c) from 0.2% to 2.5% an itaconic acid monomer;wherein the total amount of monomers b) and c) is from 0.5% to 2.5% by dry weight based on total dry weight of the polymer dispersion, and the dry weight ratio of monomer b) to monomers b) and c) is from 0.2 to 0.6. The present invention further provides a paint formulation of PVC higher than 60% comprising the polymer dispersion.

Description

technical field [0001] The present invention relates to a poly(vinyl acetate) dispersion. In particular, the present invention relates to a high pigment volume concentration (PVC) paint formulation comprising a poly(vinyl acetate) dispersion. Background technique [0002] Poly(vinyl acetate) dispersions are used in the paint industry because they are cost-effective and environmentally friendly compared to other polymer dispersions commonly used in the industry, and thus provide better hiding efficiency to paint formulations middle. However, it is not good at providing competitive washability and early chalking resistance, especially in paints above 60% PVC. [0003] Research has been conducted and it has been found that phosphorous containing monomers such as phosphoethyl methacrylate (PEM) can greatly improve paint washability, but unfortunately cause paint stability problems. [0004] There is thus a need in the paint industry for polymer dispersions which provide paint...

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): C09D143/02C09D131/04C09D135/00C08F18/08C08F22/02C08F30/02C08F218/08C08F222/02C08F230/02C08F2/16
CPCC08F2/24C08F218/08C09D131/04C08F220/1804C08F228/02C08F222/02C08F230/02C09D7/65C09D4/00C09D127/06
Inventor 许建明W·崔张庆伟L·李D·马
Owner DOW GLOBAL TECH LLC
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