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

Polyurethane coating roller and manufacture method thereof

A technology of coating rollers and polyurethane, applied in the direction of household components, etc., to ensure the effect of repeated use and grinding, uniform mixing, and guaranteed pouring time

Inactive Publication Date: 2009-09-02
BAOSHAN IRON & STEEL CO LTD
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no precedent for applying it to coating rollers of home appliance products in color coating units

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
  • Polyurethane coating roller and manufacture method thereof
  • Polyurethane coating roller and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] The following describes the present invention in more detail through the embodiments and in conjunction with the accompanying drawings.

[0056] 1. Main raw and auxiliary materials

[0057] A. Polyester diol

[0058] Scientific name: polyethylene adipate propylene glycol ester

[0059] Appearance: white waxy solid or colorless transparent viscous liquid

[0060] Molecular weight: 1400~2000 (number average)

[0061] Moisture content: ≤0.02%

[0062] Hydroxyl value: 60~80(mgKOH / g)

[0063] Acid value: 1~3(mgKOH / g)

[0064] Addition amount is 60~60%.

[0065] B. Toluene diisocyanate (TDI) (Mitsui, Japan or BASF, USA)

[0066]Appearance: Colorless to light yellow transparent liquid

[0067] Purity: ≥98%

[0068] Hydrolyzed chlorine: 0.01~0.06%

[0069] Adding amount is 20-30%

[0070] C. Prepolymer: the model 218 product produced by Takeda Corporation of Japan, the addition amount is 7-10%.

[0071] D. Curing agent: Type II curing agent produced by Japan Takeda ...

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 polyurethane coating roller comprises a glue layer which comprises 50 percent to 60 percent of polyester dibasic alcohol, 20 percent to 30 percent of toluene di-isocyanate, 7 percent to 10 percent of prepolymer and 8 percent to 15 percent of curing agent. The manufacture method of the glue layer comprises the steps of: a) prepolymerization step, carrying out dehydration on the polyester dibasic alcohol, adding the toluene di-isocyanate to be mixed with the dehydrated polyester dibasic alcohol, carrying out prepolymerization reaction by adding the prepolymer, and then adding melted curing agent for mechanical mixing; b) pouring step, pouring the mixture on the roller core surface coated with adhesive; and c) post-treatment step, curing and machining the poured mixture. Therefore, the obtained polyurethane coating roller has stable glue roller hardness, excellent physical and mechanical properties such as tensile resistance, rebound and the like and excellent solution resistance property.

Description

technical field [0001] The invention relates to equipment for producing colored steel plates, in particular to a polyurethane coating roller for a color coating unit and a manufacturing method thereof. Background technique [0002] Color steel plate products are mainly used in the field of building materials. The surface quality requirements of products for home appliances are much higher than those for construction products. Since the coating roller is the key and core component that affects the coating quality of the steel plate surface, its excellent and stable performance directly determines the quality of the paint film coating on the surface of the home appliance board. [0003] During the use of the existing home-made home appliance coating rollers, streaky defects will occur on the surface of the home appliance and thickening will also occur on the edge of the strip, which seriously affects the quality of the home appliance. Low-hardness polyurethane coating roller...

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): C08L75/06C08G18/76C08G18/42C08G18/10C08J3/24B29C39/10B29C39/22B29D31/00
Inventor 蒋国强郝仁官刘博任玉苓谢旼
Owner BAOSHAN IRON & STEEL CO 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