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

Non-stick coating and method for production thereof

A technology of non-stick coating and covering layer, applied in the direction of coating, special materials for cooking utensils, etc., can solve the problems affecting non-stick performance, etc., and achieve the effect of good wear resistance, good non-stick effect and good wear resistance.

Pending Publication Date: 2021-02-23
工业漆股份公司
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unburned acrylate residues also negatively affect non-stick properties

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
  • Non-stick coating and method for production thereof
  • Non-stick coating and method for production thereof
  • Non-stick coating and method for production thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] A non-stick coating was examined which consisted of a cover layer with a dry film thickness of 35 to 40 μm and a base layer with a dry film thickness of approximately 15 μm. The cover layer in this example comprises about 99.3% by weight PTFE based on the total solids content of the cover layer, of which about 5.5% by weight is a polymeric modified PTFE comprising less than 1% by weight Perfluoropropyl vinyl ether (PPVE) was used as a modifying comonomer and obtained by emulsion polymerization, and had an average particle size of about 200 nm. In addition, about 0.4% by weight of effect pigments (mica), based on the total solids content of the cover layer, and about 0.2% by weight of carbon black pigments are included.

[0046] The adhesion promoter layer in this example consists of about 32.5% by weight alumina, 18.4% by weight polyamideimide, 13.7% by weight silicon carbide, 27.1% by weight PTFE based on the total solids content of the adhesion promoter layer , 5.5% ...

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
Average particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a non-stick coating for an article, having at least one bonding agent layer (V) applied to a surface of the article and a top layer (D), disposed over the bonding agent layer,wherein the bonding agent layer has a dry film layer thickness of 5 to 25 mum, and the top layer has a dry film layer thickness of 10 to 65 mum. In order to obtain an improved combination of non-stick effect and abrasion resistance, according to the invention the top layer contains 95 to 100 wgt.-% PTFE and, as applicable, up to 5 wgt.-% pigments, relative to the total solids content of the top layer, and is free of fluoropolymers which can be melt-processed, and the PTFE contained comprises between 100 wgt.-% of a high-molecular modified PTFE, which contains < 1 wgt.-% perfluoro propyl vinylether (PPVE) as a modified co-monomer and was obtained by emulsion polymerization. In a method for applying the non-stick coating, the bonding agent layer is applied in liquid form as a first aqueousdispersion to the surface of the article and then heat-dried, then the top layer is applied in the form of a second aqueous dispersion and the layers are bonded by subsequent drying and fusion to each other and to the surface of the article, wherein the second dispersion is free of fluoropolymers which can be melt-processed and is free of low-molecular PTFE.

Description

technical field [0001] The present invention relates to a PTFE non-stick coating with improved non-stick properties after intense abrasion, an article with such a non-stick coating, a method for the manufacture of the non-stick coating and the use of the non-stick coating in the manufacture of cooking equipment , frying equipment and kitchen equipment or other applications requiring non-stick effect and high wear resistance. Background technique [0002] Organic fluoropolymer coatings show good non-stick properties due to their lower surface energy and higher heat resistance due to higher C-F bonding energy. These coatings are widely used especially as non-stick coatings for kitchen appliances. [0003] Nonstick coatings made of fluoropolymers are mostly applied to the substrate in multiple layers. Multilayer fluoropolymer coatings generally include an adhesion promoter layer and a cover layer, and optionally include one or more intermediate layers. [0004] Multilayer no...

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): A47J36/02C09D127/18C09D179/08C09D181/06C08L27/18
CPCC08G73/14C08L2205/025C09D127/18C09D179/08C08L27/18C08K3/013C08L79/08
Inventor J.布兰德H.G.盖泽尔S.莱施
Owner 工业漆股份公司
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