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

Moisture-permeable waterproof film, composite material, and processes for producing these

一种透湿防水、制造方法的技术，应用在薄料处理、化学仪器和方法、纺织品和造纸等方向，能够解决耐久性没有、膜强度降低、没有发现实用性能等问题

Inactive Publication Date: 2006-01-18
TORAY IND INC
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of using a solvent-based resin, there is no technology that satisfies both moisture permeability and water resistance, and no prior art that has practical performance has been found.
In addition, there is no technology that has not only practical performance but also durability of materials.
[0004] In the case of water-based resin, the so-called method of introducing a hydrophilic part into the polymer chain and mixing a high moisture-permeable hydrophilic resin with a low-moisture-permeable resin like a solvent-based resin will cause a decrease in film strength. Significantly lower, it is extremely difficult to achieve both good material performance and material durability

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0167] Using "Lezamin D2060" (trade name manufactured by Dainichi Seika Co., Ltd.) whose main component is self-emulsifying polyurethane and a water-soluble resin whose main component is water-soluble polyurethane containing a silanol group as a crosslinkable terminal functional group, These were respectively mixed in an equal weight of solid content to prepare a mixed resin having a solid content of 27 wt%. Among them, the water-soluble resin with water-soluble polyurethane as the main component uses 4,4'-methylene bis(cyclohexyl isocyanate) as the polyisocyanate component, and uses 0.248mmol / g as the dihydroxyalkyl fatty acid relative to the solid content of the resin. 2,2-Dimethylolpropionic acid, synthesized by using polyethylene glycol with a number average molecular weight of 1000 at a ratio of 67.2 wt% to the resin solid content as a polyalkylene glycol component, and self-emulsifying polyurethane "Lezamin D2060" as the main component uses 4,4'-methylene bis(cyclohexyl ...

Embodiment 2

[0173] Using a resin whose main component is self-emulsifying polyurethane and a water-soluble resin whose main component is water-soluble polyurethane containing a silanol group as a crosslinkable terminal functional group, they are respectively mixed with equal weights of solid components to prepare A mixed resin with a solid content of 27 wt%, in which the water-soluble resin containing water-soluble polyurethane as the main component uses 4,4'-methylene bis(cyclohexyl isocyanate) as the polyisocyanate component, and the solid content of the resin is 0.248mmol 2,2-Dimethylolpropionic acid / g was synthesized as a dihydroxyalkyl fatty acid, and polyethylene glycol having a number average molecular weight of 1000 as a polyalkylene glycol component was 67.2% by weight relative to the resin solid content. The resin mainly composed of self-emulsifying polyurethane is 2,2-dihydroxy Methylbutyric acid was synthesized as a dihydroxyalkyl fatty acid, poly(1,4-butylene glycol) having a...

Embodiment 3

[0179] Except that no crosslinking agent was added, the same operation as in Example 1 was carried out to obtain the film of the present invention. The film thickness was 20 μm.

[0180] As shown in Tables 1 and 2, because the water-based resin has good moisture permeability and water resistance, it is a moisture-permeable waterproof film with less organic solvent discharge and less environmental pollution than the existing technology.

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
coating thicknessaaaaaaaaaa
water pressureaaaaaaaaaa
coating thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a moisture-permeable waterproof film characterized by comprising a resin layer which comprises two or more resins made up of monomer units comprising bishydroxyalkylfatty acid units and polyalkylene glycol units, the content of the bishydroxyalkylfatty acid units in each resin being 0.08 to 0.5 mmol per gram of the resin on a solid basis and the content of the polyalkylene glycol moieties in each resin being 40 to 80 wt.% on a solid basis, and by having a moisture permeability of 3*10<3> to 200*10<3> g / m<2>24 h as measured by the potassium acetate method (method B-1) in accordance with JIS L-1099 when the film has an average thickness of 20 micron; and a moisture-permeable waterproof composite material which comprises a base and the film disposed at least on one side thereof and has a moisture permeability of 1*10<3> to 50*10<3> g / m<2>24 h as measured by the potassium acetate method (method B-1) in accordance with JIS L-1099. Polymers which are excellent in moisture permeability, waterproofness, and durability and can be produced in the form of a water-compatible resin are used. Because of this, the moisture-permeable waterproof film and composite material can be produced by a process in which the burden to be imposed on the environment is lessened.

Description

technical field [0001] The present invention relates to a moisture-permeable waterproof film and a composite material that can be manufactured with less environmental pollution by using a water-compatible polymer with excellent moisture permeability, water resistance, and material durability. More specifically, the present invention relates to outdoor products such as fishing and mountaineering clothing, ski clothing, Windproof outerwear, sporting goods, golf equipment, tennis equipment, raincoats, travel coats, clothing for outdoor work, gloves and shoes, clothing materials, so-called wallpaper and building materials such as roof waterproof sheets and tiles, so-called Moisture-permeable waterproof films and their composite materials in the field of non-clothing materials for electronic machinery and equipment components such as film substrates for dehumidifiers. Background technique [0002] In the past, in order to obtain moisture-permeable waterproof films and composite ...

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): C08J5/18B32B27/12D06M15/37B32B27/40D06M15/564C08L75/04C08G18/08C08G18/32C08G18/44C08G18/48C08J7/043C08J7/046C08J7/056C08K3/36C08L67/00C09D175/04
CPCC08G18/4854C09D175/04C08J2475/00C08G18/3212C08J2367/02C08J2377/00C08G18/4833C08G18/44C08K3/36C08L75/04B32B27/12C08G18/0823C08L67/00C08J7/047Y10T428/1331Y10T442/674Y10T428/31551C08J7/0427C08J7/043C08J7/046C08J7/056C08L2666/18C08L2666/16C08L2666/54C08L2666/20C08J5/18B32B2437/00B32B27/10B32B7/12B32B2607/02B32B27/08B32B2307/724B32B2307/7265B32B2419/00B32B5/022
Inventor 竹田惠司小出现
Owner TORAY IND INC
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