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

Acrylic emulsion adhesive composition comprising nano sized latex particles having a mono-modal particle size distribution, and production method for same

An acrylic emulsion and acrylic technology, applied in the direction of film/sheet adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., can solve hardening, filtration problems, sticky High adhesive strength, high processability and productivity, and high sustainability can be achieved without problems such as reduced adhesion

Active Publication Date: 2015-07-08
LG CHEM LTD
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, there are stability issues with high solids latexes of various particle shapes
When latex stability is low, excess lumps are generated during polymerization, and therefore filtration after polymerization is problematic, and, when stored, the latex also has stability problems, and thus may harden
Therefore, further emulsifiers need to be added in order to improve stability, but it can be the cause of reduced adhesion

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
  • Acrylic emulsion adhesive composition comprising nano sized latex particles having a mono-modal particle size distribution, and production method for same
  • Acrylic emulsion adhesive composition comprising nano sized latex particles having a mono-modal particle size distribution, and production method for same
  • Acrylic emulsion adhesive composition comprising nano sized latex particles having a mono-modal particle size distribution, and production method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The acrylic emulsion PSA composition according to one embodiment of the present invention may be prepared through the following process.

[0051] To a 3L glass reactor equipped with a thermostat, a stirrer, a dropping funnel, a nitrogen injection tube and a reflux condenser, were added 360 g of distilled water and 5 g (30 wt %) of sodium laureth sulfate and 10 g of (30 wt%) Sodium Lauryl Sulfate. While stirring the resulting solution, the air inside the reactor was replaced with nitrogen, and the temperature therein was raised to 80° C. and maintained for 60 minutes in a nitrogen protective atmosphere.

[0052] Separately from the emulsion preparation process, to prepare a pre-emulsion, 50 g (30 wt%) sodium laureth sulfate, 15 g (60 wt %) dioctyl sodium sulfosuccinate, 2 g sodium carbonate, 2 g methylene A solution composed of sodium propylsulfonate and 300g distilled water and 330g butyl acrylate (BA) , 930g 2-ethylhexyl acrylate (2-EHA), 110g vinyl acetate, 76g acry...

Embodiment 2

[0057] An acrylic emulsion resin was prepared in the same manner as in Example 1, except that the amount of 30 wt% sodium lauryl sulfate was twice that used in the emulsion preparation process.

Embodiment 3

[0059] In addition to the amount of 30wt% sodium lauryl polyoxyethylene ether sulfate and 30wt% sodium lauryl sulfate in the surfactant is 30wt% sodium lauryl polyoxyethylene ether sulfate and 30wt% sodium lauryl sulfate used in the emulsion preparation process Except twice the amount of sodium alkyl sulfate, acrylic emulsion resin was prepared in the same manner as in Example 1.

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
particle diameteraaaaaaaaaa
diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The present invention relates to an acrylic emulsion adhesive composition which comprises latex particles wherein 3 or more different types of anionic emulsifiers cover polymer fine particles comprising (A) a main momoner consisting of a (meth)acrylic acid ester monomer having a C1-C14 alkyl group, (B) an auxiliary monomer consisting of one or more monomer selected from the group consisting of monomers comprising an alkyl ester, a vinyl ester, an unsaturated ester group or a mixture thereof and a cyano group, monomers comprising an amine group, and styrene-based monomers having a vinyl group,(C) a functional monomer consisting of a monomer having a carboxyl group and / or hydroxyl group, and (D) a crosslinking agent; and the composition has an outstandingly stable high-solids fraction in which the latex particles have a nano-sized mean particle size and monomodal form of particle size distribution. The present invention also relates to a production method for the acrylic emulsion adhesive composition.

Description

technical field [0001] The present invention relates to an acrylic emulsion pressure-sensitive adhesive composition having a high solid content and excellent coating performance, and a preparation method thereof, the acrylic emulsion pressure-sensitive adhesive composition comprising nanoscale latex particles. More particularly, the present invention relates to an acrylic emulsion pressure sensitive adhesive composition comprising latex particles having a high solid content and excellent coating properties and a method for preparing the same , in the latex particles at least three kinds of anionic emulsifiers cover the polymer particles, and the polymer particles include: (A) as the main monomer having C 1 -C 14 Alkyl (meth)acrylate monomers; (B) as auxiliary monomers selected from monomers with allyl ester groups, vinyl ester groups, unsaturated ester groups or combinations thereof, containing cyano groups, comprising At least one monomer of an amine-based monomer and a st...

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): C09J4/00C09J133/04C09J11/00
CPCC09J133/08C09J7/0217C09J4/00C08L2201/52C09J7/385C09J7/22C09J11/00C09J133/04C09J2301/302C09J2301/40C09J2301/312C09J2301/408C09J9/00C09J11/06
Inventor 河裁雄金英玟韩正燮宋公珠金美映李锦炯
Owner LG CHEM LTD
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