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

Curable composition and joint structure formed using the same

A curable composition and polymer technology, applied in building construction, other chemical processes, chemical instruments and methods, etc., can solve problems such as water leakage, cracking of cured products, and immersion of rainwater into building structures.

Active Publication Date: 2018-01-30
SEKISUI FULLER
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the conventional curable composition has the following problems: after curing, the rubber elasticity decreases and becomes hard after a period of time, and when the width of the seam portion changes, it is difficult to expand and contract following the change in the width of the seam portion. , peeling of the bonding interface or damage to the outer wall parts, or cracks (cracks) in the cured product of the curable composition, rainwater immersion into the building structure, causing water leakage

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
  • Curable composition and joint structure formed using the same
  • Curable composition and joint structure formed using the same
  • Curable composition and joint structure formed using the same

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0113] (Synthesis Example 1: Acrylic Polymer (B1))

[0114] 100 g of n-butyl acrylate (manufactured by Nippon Catalyst Co., Ltd.), 3-methacryloyloxypropylmethyl dimethyl was supplied and mixed into a 0.5 L separable flask equipped with a stirrer, a condenser, a thermometer, and a nitrogen inlet. Oxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name "KBM-502") 0.6 g, 3-mercaptopropylmethyldimethoxysilane (chain transfer agent, manufactured by Shin-Etsu Chemical Co., Ltd., trade name "KBM-802") ") 0.9g and ethyl acetate 100g to make a monomer mixed solution.

[0115] Nitrogen gas was bubbled in the monomer mixed solution for 20 minutes, thereby removing dissolved oxygen in the monomer mixed solution. Next, after replacing the air in the separable flask with nitrogen, the temperature was raised to reflux while stirring the monomer mixed solution.

[0116] 0.024 g of 1,1-bis(t-hexylperoxide)-3,3,5-trimethylcyclohexane was dissolved in 1 g of ethyl acetate to prepar...

Synthetic example 2

[0123] (Synthesis Example 2: Acrylic Polymer (B4))

[0124] 100 g of n-butyl acrylate (manufactured by Nippon Catalyst Co., Ltd.), 3-methacryloyloxypropylmethyl dimethyl was supplied and mixed into a 0.5 L separable flask equipped with a stirrer, a condenser, a thermometer, and a nitrogen inlet. Oxysilane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name "KBM-502") 0.9 g, 3-mercaptopropylmethyldimethoxysilane (chain transfer agent, manufactured by Shin-Etsu Chemical Co., Ltd., trade name "KBM-802") ”) 0.9g and ethyl acetate 100g to prepare a monomer mixed solution.

[0125] Polymerization was carried out in the same manner as in Synthesis Example 1 except that the above-mentioned monomer mixed solution was used. An ethyl acetate solution containing an acrylic polymer (B4) having a dimethoxymethylsilyl group was obtained.

[0126] Next, ethyl acetate was removed using an evaporator to obtain an acrylic polymer (B4). The obtained acrylic polymer (B4) had 1.85 dimethox...

Synthetic example 3

[0127] (Synthesis Example 3: Acrylic Polymer (B5))

[0128] 100 g of n-butyl acrylate (manufactured by Nippon Catalyst Co., Ltd.), 3-methacryloxypropylmethyl trimethoxyl were supplied and mixed into a 0.5 L separable flask equipped with a stirrer, a condenser, a thermometer, and a nitrogen inlet. Silane (manufactured by Shin-Etsu Chemical Co., Ltd., trade name "KBM-503") 0.6 g, 3-mercaptopropylmethyltrimethoxysilane (chain transfer agent, manufactured by Shin-Etsu Chemical Co., Ltd., trade name "KBM-803") 0.9 g and 100 g of ethyl acetate to prepare a monomer mixed solution.

[0129] Polymerization was carried out in the same manner as in Synthesis Example 1 except that the above-mentioned monomer mixed solution was used. An ethyl acetate solution containing an acrylic polymer (B4) having a dimethoxymethylsilyl group was obtained.

[0130] Next, ethyl acetate was removed using an evaporator to obtain an acrylic polymer (B5). The obtained acrylic polymer (B5) had an average of ...

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
viscosityaaaaaaaaaa
particle sizeaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The present invention provides a curable composition comprising: a polyoxyalkylene (A) having a hydrolyzable silyl group, an acrylic polymer (B) having a hydrolyzable silyl group, and an alkoxysilane oligomer ( C), the alkoxysilane oligomer (C) is a hydrolysis condensate of an alkylalkoxysilane and an aminoalkoxysilane, and the nitrogen atom content is more than 1% by weight.

Description

technical field [0001] The present invention relates to a curable composition that provides a cured product that is cured by moisture in the atmosphere and has excellent weather resistance, and a joint structure formed using the curable composition. Background technique [0002] Conventionally, a curable composition containing an oxyalkylene polymer having a crosslinkable hydrolyzable silyl group is known (for example, Patent Document 1). In the curable composition, the crosslinkable hydrolyzable silyl group is hydrolyzed by moisture contained in the atmosphere, followed by dehydration condensation, whereby a cured product having excellent adhesiveness is produced. [0003] The above-mentioned curable composition is filled, for example, between outer wall members such as mortar boards, concrete boards, ALC (Autoclaved Light-weight Concrete) boards, and metal boards in the outer walls of building structures. The joints (so-called "seams") are thereby used to bond the outer w...

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 Patents(China)
IPC IPC(8): C08L33/14C08L71/02C08L83/08C09K3/10
CPCC08G77/045C08G77/26C08L43/04C09K3/1006C08G65/336C09K3/1018C09K2003/1056C08F220/1804C08L71/02C08L83/04C08F230/085C09K2200/0476E04B1/6801
Inventor 池内拓人
Owner SEKISUI FULLER
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