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

Surface treatment process and treated article

A main surface, polysilazane technology, applied in the field of surface treatment and treated products, can solve problems such as poor compatibility of manufacturing processes, and achieve the effect of improving the convenience of cleaning

Inactive Publication Date: 2012-05-23
3M INNOVATIVE PROPERTIES CO
View PDF19 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this requires the use of multiple process steps (and often requires the use of expensive materials), resulting in additional time, additional expense and / or poor compatibility with existing manufacturing processes
[0005] Finally, the various fluorine-containing surface treatments differ in their ease of application to the substrate (due to differences in viscosity and / or solvent solubility, for example), their necessary curing conditions (for example, some require relatively high temperature and for a relatively long time), their level of repellency, their ease of cleaning, their optical clarity, their chemical resistance and / or their resistance to solvents

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
  • Surface treatment process and treated article
  • Surface treatment process and treated article
  • Surface treatment process and treated article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0117] Objects and advantages of this invention are further illustrated by the following examples, but the particular materials and amounts thereof recited in these examples, as well as other conditions and details, should not be construed to unduly limit this invention. These examples are for illustrative purposes only and are not intended to limit the scope of the appended claims.

[0118] Material

[0119] All solvents were of standard reagent grade obtained from commercial sources and were used without further purification unless otherwise noted.

[0120]

[0121] A 2-liter 3-neck flask equipped with a mechanical stirrer, dry ice (ie, solid carbon dioxide) / acetone condenser, and ammonia inlet tube was charged with hexane (800 mL), methyldichlorosilane (57.7 g, obtained from Alfa Aesar, Ward Hill, MA) and vinylmethyldichlorosilane (17.4 g, available from Alfa Aesar, Ward Hill, MA). Ammonia (obtained from Matheson Tri Gas, Baking Ridge, NJ) was then slowly bubbled int...

example 1

[0153] Will (0.2 g; prepared as described above) and polysilazane PS1 (2 g; prepared as described above) in xylene (2 g) was heated to 130° C. for 4 hours. When the resulting homogeneous solution cooled to room temperature, two layers formed. The solution was diluted with 12 g of ethyl acetate. Then, 0.0136 g of dicumyl peroxide was added to 5 g of this solution, and the resulting solution was applied on an aluminum plate and cured at 150° C. for 18 hours.

example 2

[0155] Example 2 is carried out in substantially the same manner as Example 1, except that Use 0.2g (prepared as above) instead.

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

A surface treatment process comprises (a) providing at least one substrate having at least one major surface; (b) combining (1) at least one curable oligomeric or polymeric polysilazane comprising at least one chemically reactive site, and (2) at least one fluorochemical compound comprising (i) at least one organofluorine or heteroorganofluorine moiety that comprises at least about six perfluorinated carbon atoms, and (ii) at least one functional group that is capable of reacting with the polysilazane through at least one of the chemically reactive sites; (c) allowing or inducing the polysilazane and the fluorochemical compound to react to form at least one curable organofluorine-modified polysilazane; (d) applying the curable organofluorine-modified polysilazane or its precursors to at least a portion of at least one major surface of the substrate; and (e) curing the curable organofluorine-modified polysilazane to form a surface treatment.

Description

technical field [0001] The present invention relates to a method for treating a substrate, especially a substrate having a hard surface, such as ceramic or glass, to render the surface water-repellent, oil-repellent, stain-repellent and / or scale-repellent, and in another aspect, the present invention Involves the substrate thus treated. Background technique [0002] There are a number of fluorochemical compositions that have been used as coating compositions supplied to substrates (e.g. hard surface substrates and fibrous substrates) to impart low surface energy properties such as oil repellency and / or water repellency (oleophobicity and / or hydrophobicity). However, when used in coatings or films, many fluorine-containing materials tend to diffuse to the surface of the coating or film and degrade over time (eg, due to repeated cleaning of the surface). [0003] This has led to the use of fluoroderivatives with reactive or functional groups such as fluoropolyetherthiols t...

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): C09D183/16
CPCC08L83/04C08G77/62B05D2202/25B05D3/0254C08G77/24C08L83/16B05D5/083C08L83/00
Inventor 杨宇乔治·G·I·莫尔托马斯·P·克伦
Owner 3M INNOVATIVE PROPERTIES CO
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