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

Low-density composite material for rapid demoulding shoes

A low-density, demoulding technology, used in applications, shoe soles, insoles, etc., can solve the problems of long mold opening time, low unsaturation, and low production efficiency, and achieve short demoulding time, high production efficiency, and mildew resistance. handy effect

Inactive Publication Date: 2017-05-17
SHANDONG INOV POLYURETHANE
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN200710113879.0 discloses a polyether-type insole material, using polyether with high activity and low unsaturation to improve performance, but there are problems of long mold opening time and low production efficiency; CN200710134369.1 discloses a low-density insole material , the foaming agent chooses water and HCFC-141b, of which 141b has the problem of not being environmentally friendly and is being gradually replaced

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
  • Low-density composite material for rapid demoulding shoes
  • Low-density composite material for rapid demoulding shoes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Component A: Weigh 100 kg of polyester polyol (PE2515, produced by Shandong Yinuowei Polyurethane Co., Ltd.) with a functionality of 2 and a number average molecular weight of 1500, 3 kg of ethylene glycol, and silicone foam stabilizer DC193 (USA Gas Chemical Products Co., Ltd.) 0.3kg, glycerin 0.8kg, water 0.65kg, RHA-DM-3 0.3kg, put the above raw materials in a mixing kettle, after mixing evenly, discharge the material, and seal it for storage;

[0035] Component B: Weigh 40kg of polyether polyol (SD-820, produced by Shanghai Dongda Chemical Co., Ltd.), keep the temperature at 55°C, add 54kg of 4,4-diphenylmethane diisocyanate, 2g of phosphoric acid, and heat up to Insulate and react at 77°C for 1.2h, add 6kg of carbodiimide-modified MDI, stir for 0.5h, take a sample and test, the mass content of -NCO is 19%±0.2, cool down to 40°C and discharge, sealed and stored;

[0036] When in use, add 1kg of ethylene glycol solution with triethylenediamine accounting for 35wt% to...

Embodiment 2

[0038] Component A: Weigh 100 kg of polyester polyol (PE2520, produced by Shandong Yinuowei Polyurethane Co., Ltd.) with a functionality of 2 and a number average molecular weight of 2000, 4 kg of ethylene glycol, and silicone foam stabilizer DC2525 (USA Gas Chemical Products Co., Ltd.) 0.2kg, DC193 0.3kg, diethanolamine 0.5kg, RHA-DM-3 0.4kg, XD-104 0.5kg, water 0.6kg, put the above raw materials in the mixing kettle, after mixing evenly, Discharging, sealed and preserved;

[0039] Component B: Weigh 30kg of polyether polyol (SD-820, produced by Shanghai Dongda Chemical Co., Ltd.), keep the temperature at 55°C, add 60kg of 4,4-diphenylmethane diisocyanate, 3g of phosphoric acid, and heat up to Insulate and react at 77°C for 1.2h, add 10kg of carbodiimide-modified MDI, stir for 0.5h, take a sample and test, the mass content of -NCO is 22.5%±0.2, cool down to 40°C and discharge, sealed and stored;

[0040] When in use, add 2kg of ethylene glycol solution with triethylenediamin...

Embodiment 3

[0042] Component A: Weigh 100 kg of polyester polyol (PE2515, produced by Shandong Yinuowei Polyurethane Co., Ltd.) with a functionality of 2 and a number average molecular weight of 1500, 5 kg of ethylene glycol, 2 kg of diethylene glycol, and silicone Foam stabilizer DC2525 (produced by American Gas Chemical Products Co., Ltd.) 0.6kg, glycerin 0.5kg, RHA-DM-3 0.5kg, XD-104 0.4kg, water 0.5kg, put the above raw materials in a mixing kettle, mix well , discharged, sealed and stored;

[0043] Component B: Weigh 30kg of polyether polyol (SD-820, produced by Shanghai Dongda Chemical Co., Ltd.), SD560118kg, 2g of phosphoric acid, keep the temperature at 55°C, add 58kg of 4,4-diphenylmethane diisocyanate, Heat up to 77°C and keep it warm for 1.2h, add 4kg of carbodiimide-modified MDI, stir for 0.5h, take a sample for detection, the mass content of -NCO is 19.9%±0.2, cool down to 40°C, discharge, and seal it for storage;

[0044] When in use, add 1.2kg of ethylene glycol solution w...

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

The invention relates to a low-density composite material for rapid demoulding shoes and belongs to the technical field of polyurethane synthesis. The low-density composite material is prepared from a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight: 100 parts of polyester polyol, 3 to 7 parts of a chain extender, 0.5 to 1 part of a crosslinking agent, 0.4 to 0.8 part of a foam stabilizer, 0.3 to 0.7 part of a foaming agent, 0.3 to 0.8 part of a mildew-proof aid and 1 to 2 parts of an amine catalyst; the component B is prepared from the following raw materials in parts by weight: 30 to 40 parts of polyether polyol and / or polyester polyol, 60 to 70 parts of isocyanate and 10 to 30 ppm of a storage stabilizer. Excellent performance of polyester and low-temperature flexibility and hydrolysis resistance of polyether are combined, so more comfortable elasticity and more durable service life are given to shoe pads and insoles; the mildew-proof aid is added, a convenient storage mode is given to the shoe pads and the insoles and the low-density composite material is more suitable for hostile environment and weather.

Description

technical field [0001] The invention relates to a low-density composite material for fast demoulding shoes, which belongs to the technical field of polyurethane synthesis. Background technique [0002] Polyurethane products have the advantages of good wear resistance, high strength, and excellent elasticity. At the same time, they can be made into products with different densities and hardnesses, which greatly meet the individual needs of the market. They are widely used in shoe soles, midsoles, and insoles. . [0003] With the increase of people's requirements for the comfort of shoes, the requirements for insoles and midsoles are also getting higher and higher: light weight, good dimensional stability, high strength, good cushioning, sweat absorption, deodorization, mildew resistance, etc., the existing The polyester product has good wear resistance and tear resistance, and the polyether type has the characteristics of hydrolysis resistance and low temperature flexibility...

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): C08G18/79C08G18/76C08G18/66C08G18/48C08G18/42C08G18/32C08G18/10C08K3/00C08K5/00C08J9/08A43B13/04A43B17/14C08G101/00
CPCA43B13/04A43B17/14C08G18/10C08G18/425C08G18/4825C08G18/4829C08G18/721C08G18/7671C08G18/797C08G2410/00C08K5/0058C08K3/015C08G2110/0083C08G18/664C08G18/6644C08G18/6655
Inventor 孙清峰王翠甘经虎李海朝
Owner SHANDONG INOV POLYURETHANE
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