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

Polyurethane foam material

A polyurethane foam, polyurethane technology, applied in the field of polyurethane materials, can solve the problems of poor performance, high price, single performance, etc., and achieve the effects of improving mechanical properties, improving service life, and improving moisture absorption performance.

Inactive Publication Date: 2020-12-15
BEIJING UNIV OF CHEM TECH +3
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented new type of plastic called Polyurea Foamed Material (PFO) was developed by researchers working on an improved version that overcomes previous issues with older types like Ethylene Vinyl Acetate (EVM). PFO uses special polymer made from vinyl acrylate monomers mixed together without any odor or flavors. These modified resins have better physical strength than regular ones but still maintain their effectiveness even when exposed to humid environments. They also improve water vapor transmission compared to other alternatives due to its ability to absorb more liquid relative to traditional rubber products.

Problems solved by technology

This patented technical solution involves creating new types of insole that can absorb perspiration without causing any bad smell when worn over long periods of time due to their high absorption capacity compared to traditional EVAs. Additionally, these existing solutions use expensive chemical agents like zinc oxide which may be harmful if ingested by humans.

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 foam material
  • Polyurethane foam material
  • Polyurethane foam material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A kind of polyurethane foam material, composition is as follows by mass ratio:

[0052] 16 parts of polyol components;

[0053] 32 parts of isocyanate component;

[0054] 4 parts of chain extender;

[0055] 0.2 part of organometallic compound catalyst;

[0056] 0.3 part of amine catalyst;

[0057] 0.5 parts of foam stabilizer;

[0058] 2 parts foaming agent;

[0059] 4 parts of antibacterial agent.

[0060] Wherein, the polyol component is a mixture of castor oil polyol (f=2.7, hydroxyl value 163mgKOH / g) and pentaerythritol (mass ratio 4:1);

[0061] The isocyanate component is liquid MDI;

[0062] The chain extender is 1,4-butanediol;

[0063] The organometallic compound catalyst is dibutyltin oxide;

[0064] The amine catalyst is 4-methoxyethylmorpholine;

[0065] The foam stabilizer is U.S. Momentive high resilience silicone oil Y-10366;

[0066] Described whipping agent is calcium bicarbonate;

[0067] The antibacterial agent is (trimethoxysilylpropyl) o...

Embodiment 2

[0073] A kind of polyurethane foam material, composition is as follows by mass ratio:

[0074] 20 parts of polyol component; 40 parts of isocyanate component; 0.8 part of chain extender; 0.3 part of organometallic compound catalyst; 0.3 part of amine catalyst; 2 parts of foam stabilizer; 2 parts of foaming agent; 6 parts of antibacterial agent.

[0075] Wherein, the polyol component is a blend of castor oil polyol (f=2.7, hydroxyl value 163mgKOH / g) and polyethylene glycol (mass ratio 5:1);

[0076] The isocyanate component is TDI;

[0077] The chain extender is 1,6-hexanediol;

[0078] The organometallic compound catalyst is stannous octoate;

[0079] The amine catalyst is two-(2-dimethylaminoethyl) ether;

[0080] The foam stabilizer is U.S. Momentive high resilience silicone oil Y-10366;

[0081] The whipping agent is water;

[0082] Described antibacterial agent is (trimethoxysilyl propyl) octadecyl dimethyl ammonium chloride;

[0083] The preparation of polyurethane ...

Embodiment 3

[0088] A kind of polyurethane foam material, composition is as follows by mass ratio:

[0089] 25 parts of polyol component; 50 parts of isocyanate component; 5 parts of chain extender; 0.2 part of organic metal compound catalyst; 0.2 part of amine catalyst; 1.7 parts of foam stabilizer; 1.7 parts of foaming agent; 7 parts of antibacterial agent.

[0090] The polyol component is a blend of castor oil polyol (f=2.7, hydroxyl value 163mgKOH / g) and 1,4-butanediol (mass ratio 5:1);

[0091] The isocyanate component is polymeric MDI;

[0092] The chain extender is 1,4-butanediol;

[0093] The organometallic compound catalyst is isopropyl titanate;

[0094] The amine catalyst is N,N-dimethylcyclohexylamine;

[0095] The foam stabilizer is U.S. Momentive high resilience silicone oil Y-10366;

[0096] The whipping agent is water;

[0097] Described antibacterial agent is (trimethoxysilyl propyl) octadecyl dimethyl ammonium chloride;

[0098] The preparation of polyurethane foam ...

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
Hydroxyl valueaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a polyurethane foam material, which is prepared from a polyurethane composition, and the polyurethane composition comprises the following components by mass: 15-25 parts of a polyol component; 30-50 parts of an isocyanate component; 0.2-5 part of a chain extender; 0.1-0.5 part of an organic metal compound catalyst; 0.2-1 part of an amine catalyst; 0.2-5 part of a foam stabilizer; 1-5 parts of a foaming agent; and 1-8 parts of a bacteriostatic agent. The environment-friendly foaming technology is adopted, the material is odorless, the mechanical property is improved, the service life is prolonged, the antibacterial property of the material is greatly improved while the moisture absorption property is improved, and the problems of sweaty feet and smelly feetare fundamentally solved.

Description

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

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
Owner BEIJING UNIV OF CHEM TECH
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