Coating agent composition and use thereof

a technology of coating agent and composition, applied in the field of coating agent composition, can solve the problems of poor yellowing resistance of coating film, change in color, and difficulty in obtaining a coating film which retains laundering durability and sweat deterioration resistance, and achieves good mechanical properties such as tensile strength, elongation and abrasion resistance, and sufficient moisture permeability. , the effect of reducing the degree of swelling with water

Inactive Publication Date: 2007-12-13
ASAHI GLASS CO LTD
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0020] According to the coating agent composition of the invention, a coating film or film is obtained which is excellent in mechanical properties such as tensile strength, elongation, and abrasion resistance while retaining sufficient moisture permeability, has a low degree of swelling with water, has laundering durability, and has such sweat deterioration resistance that it neither swells nor deteriorates with sweat components, and which retains excellent yellowing resistance over a long period even when exposed to sunlight or NOx and contains no organotin compounds.
[0021] Furthermore, t...

Problems solved by technology

However, the coating films obtained from the related-art coating agent compositions have a problem that they change in color to yellow by the action of sunlight or NOx because an aromatic polyisocyanate was used as a raw-material isocyanate compound for the isocyanate-group-containing prep...

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

example 1

[0071] Into a 1-L separable flask equipped with a thermometer and a stirrer were introduced 306.4 parts of T-1000-100, 321.3 parts of T-3500-80, 372.3 parts of IPDI (isocyanate index=285), and 0.03 parts (30 ppm) of bismuth octylate (trade name, Nikka Octics Bismuth 25%; manufactured by Nihon Kagaku Sangyo Co., Ltd.). The contents were reacted at 75-85° C. for 2 hours in a dry nitrogen stream to obtain an isocyanate-group-containing prepolymer.

example 2

[0072] An isocyanate-group-containing prepolymer was obtained in the same manner as in Example 1, except that the mixing ratio of T-1000-100 and T-3500-80 and the isocyanate index were changed to the values shown in Table 1.

example 3

[0073] An isocyanate-group-containing prepolymer was obtained in the same manner as in Example 1, except that the mixing ratio of T-1000-100 and T-3500-80 and the isocyanate index were changed to the values shown in Table 1.

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
Fractionaaaaaaaaaa
Percent by massaaaaaaaaaa
Percent by massaaaaaaaaaa
Login to view more

Abstract

The invention relates to a coating agent composition comprising an isocyanate-group-containing prepolymer obtained by reacting a polyol comprising a polyoxyalkylene polyol having 2-4 hydroxyl groups on average, an oxyethylene group content of 85-100% by mass based on all oxyalkylene groups (100% by mass), and an arithmetic-average molecular weight of 800-2,500 with an alicyclic isocyanate and/or an aliphatic isocyanate in the presence of an organic acid bismuth salt catalyst, the isocyanate(s) being used in such an amount as to result in an isocyanate index of 150-300. The invention can provide a coating agent composition which forms a coating film or film having moisture permeability, excellent in mechanical properties and yellowing resistance, having laundering durability and resistance to sweat deterioration, and containing no organotin compounds.

Description

TECHNICAL FIELD [0001] The present invention relates to a coating agent composition, an article having a coating film obtained from the coating agent composition, and a film obtained from the coating agent composition. BACKGROUND ART [0002] A moisture-permeable material which comprises a porous base, e.g., a fabric, having a substantially non-porous layer of a hydrophilic polyurethane resin on a surface thereof and which is suitable for use as a material for garments, etc. is known. The layer of a hydrophilic polyurethane resin absorbs moisture from the high-humidity side and releases moisture to the low-humidity side. The layer thus functions to transmit moisture. [0003] The main raw materials for the layer of a hydrophilic polyurethane resin comprise a polyol having high hydrophilicity and an isocyanate compound. In many cases, a two-pack type coating agent composition comprising a combination of an isocyanate-group-containing prepolymer obtained by reacting a polyol having high h...

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): C08G18/81
CPCC08G18/12C08G18/4808C08G18/4812C08G18/227C09D175/08C08G18/755C08G18/307Y10T428/31551C09D175/00C08G18/48C08G18/75
Inventor WADA, HIROSHIOHORI, TOMEYOSHI
Owner ASAHI GLASS CO LTD
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