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

Isocyanate composition, aqueous dispersion of isocyanate composition, production method therefor, coating composition, and coating film

An isocyanate and isocyanate-based technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of reduced number of functional groups and reduced drying properties, and achieve the effect of excellent appearance of the coating film

Active Publication Date: 2019-06-04
ASAHI KASEI KK
View PDF33 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these techniques, drying properties may decrease due to a decrease in the number of isocyanate functional groups

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
  • Isocyanate composition, aqueous dispersion of isocyanate composition, production method therefor, coating composition, and coating film
  • Isocyanate composition, aqueous dispersion of isocyanate composition, production method therefor, coating composition, and coating film
  • Isocyanate composition, aqueous dispersion of isocyanate composition, production method therefor, coating composition, and coating film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0340] Hereinafter, the present invention will be described in more detail based on examples and comparative examples, but the present invention is not limited to the following examples at all. In addition, unless otherwise specified, "part", "%" and "ppm" mean "parts by mass", "% by mass" and "ppm by mass", respectively.

[0341]

[0342] The NCO content (mass %) was determined by back titration with 1N hydrochloric acid after neutralizing the isocyanate groups in the measurement sample with an excess of 2N amine.

[0343]

[0344] Using the isocyanate composition as a sample, the average number of y was determined by proton nuclear magnetic resonance (NMR) using the following apparatus and conditions. Here, the average number of the alkylene glycol repeating units y in the isocyanate composition is obtained by correlating the integral value corresponding to the relative intensity of the alkylene group with the integral value corresponding to the relative intensity of the...

manufacture example 1

[0460] (Production Example 1) Synthesis of LTI

[0461] Put 122.2 g of ethanolamine, 100 mL of o-dichlorobenzene, and 420 mL of toluene into a four-neck flask equipped with a stirrer, a thermometer, and a gas inlet tube, and introduce ice-cooled hydrogen chloride gas to convert ethanolamine into hydrochloride. Next, 182.5 g of lysine hydrochloride was added, the reaction liquid was heated to 80° C. to dissolve ethanolamine hydrochloride, and hydrogen chloride gas was introduced to prepare lysine dihydrochloride. Furthermore, hydrogen chloride gas was passed through at a rate of 20 to 30 mL / min, the reaction solution was heated to 116° C., and the temperature was maintained until no more water was distilled out. The resulting reaction mixture was recrystallized from a mixture of methanol and ethanol to obtain 165 g of lysine β-aminoethyl ester trihydrochloride. Suspend 100 g of this lysine β-aminoethyl ester trihydrochloride in the form of a fine powder in 1200 mL of o-dichlor...

manufacture example 2

[0462] (Production Example 2) Synthesis of GTI

[0463] Put 275g of glutamic acid hydrochloride, 800g of ethanolamine hydrochloride, and 150mL of toluene into a four-necked flask equipped with a stirrer, a thermometer, and a gas inlet tube, and heat and reflux at 110°C for 24 hours while blowing hydrogen chloride gas. until the water is no longer azeotropic. The resulting reaction mixture was recrystallized from a mixture of methanol and ethanol to obtain 270 g of bis(2-aminoethyl)glutamate trihydrochloride. Suspend 85 g of the bis(2-aminoethyl) glutamate trihydrochloride in 680 g of o-dichlorobenzene, heat up the reaction solution while stirring, and start at a speed of 0.8 mol / hour when it reaches 135° C. Phosgene was blown in and maintained for 13 hours, and the reaction product was filtered, concentrated under reduced pressure, and purified by a thin film evaporator to obtain 54 g of GTI. The NCO content was 39.8% by mass.

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
particle sizeaaaaaaaaaa
acid valueaaaaaaaaaa
wavelengthaaaaaaaaaa
Login to View More

Abstract

The isocyanate composition has a balance of low viscosity, water dispersion properties, drying properties and water resistance, and contains an isocyanate compound represented by general formula (I).In general formula (I), A is a residue containing a structure from the reaction of an active hydrogen-containing hydrophilic compound and an isocyanate group, and the sum (m + n) of the average numberof m and the average number of n is 3. m is an integer of 1 or more. R is a group represented by general formula (II).

Description

technical field [0001] The present invention relates to an isocyanate composition, an aqueous dispersion of the isocyanate composition, a method for producing the same, a coating composition, and a coating film. [0002] This application claims priority based on Japanese Patent Application No. 2016-203142, Japanese Patent Application No. 2016-203096, Japanese Patent Application No. 2016-203143 and Japanese Patent Application No. 2016-203091 filed in Japan on October 14, 2016, the contents of which are incorporated herein by reference . Background technique [0003] A coating film formed from a coating composition comprising a combination of polyisocyanates obtained from aliphatic diisocyanate and alicyclic diisocyanate exhibits excellent properties such as weather resistance, chemical resistance, and abrasion resistance. substance as a curing agent. [0004] In recent years, due to the increase in global environmental protection, technical development for reducing the visc...

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): C08G18/08C08G18/00C08G18/28C08G18/78C08G18/80C09D175/04
CPCC09D175/04C08G18/0823C08G18/0828C08G18/288C08G18/771C08G18/792C08G18/7837C08G18/283C08G18/2825C08G18/8064C08G18/725C08G18/3885C08G18/8054C08G18/6225C08G18/8083C08G18/8096C08G18/807C08G18/0866C08G18/285C08G18/8045
Inventor 福地崇史三轮祐一
Owner ASAHI KASEI KK
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