Aqueous aromatic urethane elastomer and its preparation method

A polyurethane elastomer and aromatic technology, applied in the field of water-based aromatic polyurethane elastomer and its manufacturing, can solve the problems of easy cracking, user allergies, high price, etc., achieve good antistatic properties, easy penetration or detachment , the effect of saving energy loss

Active Publication Date: 2006-07-26
IND TECH RES INST
View PDF1 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Natural latex gloves are one of the most commonly used protective gloves, but the ingredients in latex gloves (such as: protein) may cause allergies or irritant contact dermatitis to contacts, and the chemicals added in the glove production process can also cause allergies
In order to prevent the harm caused by natural latex gloves, there have been many related attempts, such as reducing the amount of natural latex, or preparing gloves without potentially allergenic polymer elastomers, but many polymer elastomer gloves currently known It gives people a wearing feeling different from natural latex gloves. It is usually uncomfortable, not close-fitting, and may be difficult to wear. In addition, the inside of the glove is covered with powder or the surface of the glove is treated with halogen. Although it helps to increase slip, It is easy to wear, but if the powder on the medical gloves enters the wound, it is easy to increase the risk of infection and inflammation of the patient, and the gloves containing powder are not good for elect...

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
  • Aqueous aromatic urethane elastomer and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 (making of PU-A elastomer)

[0036] First, preparation of an aqueous aromatic polyurethane dispersion is carried out. 10.36 grams of dimethylol butionic acid (Dimethylol butionic acid, DMBA) and 17.39 grams of acetone were placed in a reaction tank protected by nitrogen and stirred evenly. When the above-mentioned raw materials were in a homogeneous phase, 40.28 grams were mixed in a mixing ratio of 80:20 2,4- and 2,6-cresyl diisocyanate (Toluene diisocyanate, TDI) was added to the reaction tank, and reacted at 60 degrees Celsius for 1.5 hours, after that, 119.49 grams of polytetramethylene glycol ( Polytetramethylene Glycol, PTMEG) (Mn = 2,000) and 29.87 grams of polypropylene glycol (Polypropylene glycol, PPG) (Mn = 2,000), continue to react at 60 degrees Celsius for 4 hours, and then reduce the temperature of the reaction tank to 50 degrees Celsius And add 7.07 grams of triethylamine (Triethylamine, TEA) and carry out neutralization reaction 20 minutes,...

Embodiment 2

[0038] Embodiment 2 (making of PU-B elastomer)

[0039] First, preparation of an aqueous aromatic polyurethane dispersion is carried out. 10.36 grams of dimethylol butionic acid (Dimethylol butionic acid, DMBA) and 17.39 grams of N-methyl pyrrolidone (N-methyl pyrrolidone, NMP) were placed in a reaction tank with nitrogen protection and stirred evenly, and the above When the raw materials are in a homogeneous phase, add 38.05 grams of 2,4- and 2,6-toluenediisocyanate (TDI) with a mixing ratio of 80:20 into the reaction tank, and react at 60 degrees Celsius for 1.5 hours , after that, add 121.27 grams of polytetramethylene glycol (Polytetramethylene Glycol, PTMEG) (Mn=2,000) and 30.32 grams of polypropylene glycol (Polypropyleneglycol, PPG) (Mn=2,000), continue to react at 60 degrees Celsius for 4 hours, then , the temperature of the reaction tank was lowered to 50 degrees Celsius and 7.07 grams of triethylamine (Triethylamine, TEA) was added for neutralization reaction for 20...

Embodiment 3

[0041] Embodiment 3 (making of PU-C elastomer)

[0042] First, preparation of an aqueous aromatic polyurethane dispersion is carried out. 93.24 grams of dimethylol butionic acid (Dimethylol butionic acid, DMBA) and 156.52 grams of N-methyl pyrrolidone (N-methyl pyrrolidone, NMP) were placed in a reaction tank with nitrogen protection and stirred evenly, and the above When the raw material is in a homogeneous phase, add 362.51 grams of 2,4- and 2,6-toluenediisocyanate (TDI) with a mixing ratio of 80:20 into the reaction tank, and react at 60 degrees Celsius for 1.5 hours , after that, add 1034.04 grams of polytetramethylene glycol (Polytetramethylene Glycol, PTMEG) (Mn=2,000) and 310.21 grams of polypropylene glycol (Polypropyleneglycol, PPG) (Mn=2,000), continue to react at 60 degrees Celsius for 4 hours, then , the temperature of the reaction tank was lowered to 50 degrees Celsius and 63.63 grams of triethylamine (Triethylamine, TEA) was added for neutralization reaction for...

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
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention provides an aqueous aromatic urethane elastomer which is made by dispersion of aqueous aromatic urethane elastomer; the dispersion is made by polyurethane prepolymer which is synthesized by whole aromaticdiisocyanate. The invention also provides a Manufacturing method of this elastomer. The glove work made by this invention is easy to pull on or pull off; the handle is fine when dressing. Its resistance's testing value is generally between 108-1010OMEGA, hasing good antistatic property. Furthermore, in the glove technics aspect, it has the superiority of timesaving, laborsaving and spaacesaving, even more saving the energy loss of electric power and gas heating.

Description

technical field [0001] The invention relates to an elastomer, in particular to a water-based aromatic polyurethane elastomer and a manufacturing method thereof. Background technique [0002] Natural latex gloves are one of the most commonly used protective gloves, but the ingredients in latex gloves (such as: protein) may cause allergies or irritant contact dermatitis to contacts, and the chemicals added in the glove production process It can also cause allergic reactions in users. In order to prevent the harm caused by natural latex gloves, there have been many related attempts, such as reducing the amount of natural latex, or preparing gloves without potentially allergenic polymer elastomers, but many polymer elastomer gloves currently known It gives people a wearing feeling different from natural latex gloves. It is usually uncomfortable, not close-fitting, and may be difficult to wear. In addition, the inside of the glove is covered with powder or the surface of the glo...

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): C08G18/76C08G18/10C08L75/04
Inventor 陈瑞鑫陈治贞陈哲阳张义和张凯文
Owner IND TECH RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap