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

Process for scratch- and abrasion-resistant coating and physical matting of plastics substrates, more particularly polymethyl methacrylate, with nanocomposite coating material

A technology of methyl acrylate and nano-composite, which is applied to the device for coating liquid on the surface, thin material processing, coating, etc., can solve the problems that cannot be achieved, and achieve improved chemical resistance, good substrate adhesion, and good mechanical properties. performance effect

Inactive Publication Date: 2013-03-20
EVONIK ROEHM GMBH
View PDF9 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Deeply matted PMMA surfaces with good transparency, with very high abrasion and scratch resistance, excellent resistance to chemicals, weathering and UV, hitherto not achievable with all known coating and application methods combination of properties, good wettability and pleasant haptics

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
  • Process for scratch- and abrasion-resistant coating and physical matting of plastics substrates, more particularly polymethyl methacrylate, with nanocomposite coating material
  • Process for scratch- and abrasion-resistant coating and physical matting of plastics substrates, more particularly polymethyl methacrylate, with nanocomposite coating material
  • Process for scratch- and abrasion-resistant coating and physical matting of plastics substrates, more particularly polymethyl methacrylate, with nanocomposite coating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] The following examples serve for illustration and better understanding of the invention, but this does not limit its scope or field of application in any way.

[0035] Next, semi-finished products coated with nanocomposite coatings of the present invention were compared with Evonik PLEXIGLAS from GmbH The samples were compared as comparative examples. Here, the composition of the PMMA semi-finished product is the same as its dimensions.

[0036] The coatings were applied by screen printing.

[0037] Two nanocomposite coatings with the same matrix composition (as shown in Table 1, which differ only in the proportion of thickening additives) were applied using a 120-34Y screen at an average layer thickness of 7-9 μm to Sample plates at 60°C or 90°C, where preliminary structures are produced. After a residence time of not more than one minute, by the method of the present invention according to figure 1 The surface of the coating was micro-wrinkled after being induc...

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
sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a process for the surface-finishing of plastics substrates, preferably polymethyl methacrylate (abbreviated hereinafter to PMMA), by coating with a clear coating material comprising nanoparticles (hereinafter nanocomposite coating material) and irradiating the same with vacuum UV light of wavelength 172 nm from an Xe* excimer lamp. This process leads to excellent adhesion of the coating substance on the substrate. It is moreover possible to give the coating surface a topography. The mechanical and chemical properties and performance characteristics of uncoated substrate are substantially exceeded when a substrate is coated in this way.

Description

technical field [0001] The present invention relates to plastic substrates, especially polymethyl methacrylate (hereinafter referred to as PMMA) by coating with nanoparticle-containing coatings, preferably transparent coatings, (hereinafter referred to as nanocomposite coatings) and using 172nm wavelength from A method of surface modification by irradiating it with vacuum UV light from a Xe* excimer lamp. This approach results in excellent adhesion of the coating to the substrate. In addition, it is possible to achieve a surface topography that produces a matt appearance and a pleasing haptic of the coated surface. Such coated substrates greatly outperform uncoated substrates in mechanical, chemical and application-technical properties. Background technique [0002] Like other thermoplastics, PMMA cannot meet all requirements due to its inherent properties. It is susceptible to stress cracking, especially after prior contact with solvents such as acetone or aliphatic alco...

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): C08J7/06C08K9/06C09D183/04C08J7/043C08J7/046
CPCC08L2312/06C09D133/14C08J7/06C08K2201/011C08J7/047C08J2483/04C08J2333/10C09D183/04B05D5/02C08L33/08Y10T428/24446C08J7/0427C08J7/043C08J7/046
Inventor D·梅因哈德R·舒伯特E·比尔兹S·里默斯
Owner EVONIK ROEHM GMBH
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