Oxazolidone ring-containing epoxy resin, method for producing the thereof, epoxy resin composition, cured product and application thereof

An oxazolidone ring, epoxy resin technology, applied in the application, other household appliances, chemical instruments and methods, etc., can solve the deterioration of adhesion, insufficient adhesion, deterioration of dielectric constant phosphorus content, etc. problems, to achieve the effects of excellent dielectric properties, good flame retardancy, and low dielectric constant

Active Publication Date: 2016-09-28
NIPPON STEEL CHEMICALL &MATERIAL CO LTD
View PDF15 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of the epoxy resins disclosed in any of the documents sufficiently satisfies the requirements of dielectric properties due to the recent high functionalization, and the adhesiveness is not sufficient.
[0007] Furthermore, the cured product of an epoxy resin composition containing a phosphorus-containing epoxy resin, a phosphorus-containing curing agent, and a phosphoru

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
  • Oxazolidone ring-containing epoxy resin, method for producing the thereof, epoxy resin composition, cured product and application thereof
  • Oxazolidone ring-containing epoxy resin, method for producing the thereof, epoxy resin composition, cured product and application thereof
  • Oxazolidone ring-containing epoxy resin, method for producing the thereof, epoxy resin composition, cured product and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0226] [Example]

[0227] Hereinafter, the present invention will be specifically described with examples and comparative examples, but the present invention is not limited to these examples. Unless otherwise specified, "parts" means parts by mass, and "%" means% by mass. In addition, the measurement method can be measured according to the following methods, respectively. The unit of equivalent is g / eq.

[0228] ·Epoxy equivalent: According to JIS K7236 standard.

[0229] ·Viscosity: According to JIS K7233 standard, single cylinder rotational viscometer method.

[0230] ·Softening point: Measured in accordance with JIS K7234 standard and ring and ball method. Specifically, an automatic softening point device (manufactured by Mintec Co., Ltd., ASP-MG4) was used.

[0231] Solvent solubility: visually judge the state when diluted with methyl ethyl ketone to a non-volatile content of 50%. The case where it was completely dissolved and transparent was regarded as "○", the case where it ...

Example Embodiment

[0242] Synthesis example 1

[0243] A glass separable flask was charged with 100 parts of 4,4'-(3,3,5-trimethylcyclohexylidene) diphenol (BisP-TMC), 358 parts of epichlorohydrin, 4 parts of The ion-exchanged water is heated to 50°C while stirring. After uniformly dissolving, 5.3 parts of 49% sodium hydroxide aqueous solution was charged and the reaction was performed for 3 hours. Next, after the temperature was raised to 64°C, the pressure was reduced to such an extent that water reflux was generated, 48 parts of 49% sodium hydroxide aqueous solution was added dropwise over 3 hours, and the refluxed water and epichlorine were separated and refluxed in this dropwise addition. Alcohol, the epichlorohydrin is returned to the reaction vessel, and the water is removed from the system to perform the reaction. After the completion of the reaction, the temperature was increased to 70°C to perform dehydration, and the temperature was set to 135°C to recover the remaining epichlorohydrin...

Example Embodiment

[0244] Synthesis Example 2

[0245] Except changing the amount of epichlorohydrin to 179 parts, the same operation was performed using the same apparatus as in Synthesis Example 1 to obtain the epoxy resin (a-2) represented by the formula (7). The epoxy equivalent of the obtained epoxy resin (a-2) was 227, the alcoholic hydroxyl equivalent was 3800, and m was 0.09.

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
Softening pointaaaaaaaaaa
Login to view more

Abstract

The invention provides an oazolidone ring-containing epoxy resin, a method for producing the thereof, an epoxy resin composition, a cured product and an application thereof. The oazolidone ring-containing epoxy resin is obtained by epoxy resin (a) of epoxy resin (a1) and an isocyanate compound represented by the following formula (3), the epoxide equivalent is 200-550g/eq.. The oazolidone ring-containing epoxy resin has good performances of heat resisting property, dielectric property, adhere property and the like and can be applied to purposes of stacking, moulding, casting, adhering and the like. The formula is as shown in the description. (X represents at least one selected from an alkyl group with carbon number of 1-4, an aryl group with carbon number of 6-10 and a cycloalkylene base with ring member number of 5-8 of substituent group of an aralkyl group with carbon number of 6-10. R represents a hydrogen atom, the alkyl group, a naphthene base, the aryl group or the aralkyl group, G represents a glycidyl group, and the average value of m is 0-5.).

Description

technical field [0001] The present invention relates to an epoxy resin containing an oxazolidone ring that provides a cured product excellent in low dielectric properties, high heat resistance, and high adhesiveness, a method for producing the epoxy resin, and the epoxy resin An epoxy resin composition as an essential component, and a cured epoxy resin obtained from the epoxy resin composition, a prepreg, an insulating sheet, an adhesive sheet, a laminate, a sealing material, and a casting material. Background technique [0002] Epoxy resins are used in various fields such as coatings, civil engineering bonding, casting, electrical and electronic materials, and film materials because of their excellent adhesiveness, flexibility, heat resistance, chemical resistance, insulation, and curing reactivity. In particular, in the use of printed wiring boards, one of electrical and electronic materials, epoxy resins are widely used by imparting flame retardancy. [0003] As one of t...

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): C08G59/14C08L63/00B32B15/092B32B15/20B32B27/04B32B27/18B32B27/26B32B27/38
CPCC08G59/1477C08L63/00B32B15/092B32B15/20B32B2307/206B32B2307/306B32B2307/3065B32B2262/101B32B2262/02B32B2262/0246B32B2262/0269B32B2260/021B32B2260/046B32B2262/0292B32B2262/0276B32B2250/40B32B2457/00B32B2457/08C08L2201/02C08L2205/025C08L2201/08
Inventor 冈崎有起高岛智行石原一男宗正浩
Owner NIPPON STEEL CHEMICALL &MATERIAL 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