Unlock instant, AI-driven research and patent intelligence for your innovation.

Adducts based on divinylarene oxides

A divinylarene and dioxide technology, applied in the field of amine and/or hydroxyl functional adducts, can solve the problems of undisclosed polyamine adducts, undisclosed epoxy/NH group equivalent ratio, etc., to achieve High heat resistance, low viscosity effect

Inactive Publication Date: 2012-08-22
BLUE CUBE IP
View PDF17 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The '389 patent does not disclose polyamine adducts useful for further crosslinking with other epoxy resins, and does not disclose having an epoxy / NH group equivalent ratio such that the adduct composition does not form a crosslinked polymer Adduct composition of

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
  • Adducts based on divinylarene oxides
  • Adducts based on divinylarene oxides
  • Adducts based on divinylarene oxides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4 and comparative example A-B

[0097] DVBDO and D.E.H. 20 grade diethylenetriamine were reacted in the proportions indicated in Table 1 at 90°C for 1 hour to achieve complete conversion of the epoxy groups. Table I shows the amine / epoxide molar and equivalent ratios and the adduct AEW values ​​and viscosities.

[0098] Table I - Adduct Rheology

[0099]

[0100] Notes to Table 1:

[0101] (1) The number of moles of m=DEH 20 / the number of moles of DVBDO;

[0102] {2) e=amine hydrogen equivalent / epoxy equivalent;

[0103] (3) AEW=amine hydrogen equivalent weight (calculated value);

[0104] (4) Viscosity at 25°C, frequency = 10s ″1 .

Embodiment 5-8 and comparative example E

[0110] The examples shown in Table I were cured with stoichiometric BADGE to produce g thermosetting material.

[0111] Table II - Adduct Thermosets

[0112] Example

[0113] The adducts of the present invention are less viscous than prior art divinylarene dioxide adducts without significantly lowering the T of the derived thermoset g .

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
temperatureaaaaaaaaaa
Login to View More

Abstract

A polyamine adduct including the reaction product of (a) a divinylarene dioxide, and (b) an excess of a polyamine to provide an adducted polyamine composition; a process for making the adduct; a curable epoxy resin composition including (i) the adduct derived from divinylbenzene such as divinylbenzene dioxide (DVBDO), (ii) at least one epoxy resin, and (iii) optionally, a co-curing agent and / or a catalyst; and a cured product made from said curable epoxy resin composition. The cured product made from the curable epoxy resin composition is thermally stable and offers improved properties such as a low viscosity and a high heat resistance.

Description

[0001] Background of the invention technical field [0002] The present invention relates to adducts based on divinylarene dioxide. More specifically, the present invention relates to amine and / or hydroxyl functional adducts comprising the reaction product of a divinylarene dioxide and a polyamine to provide an adducted polyamine. Background technique [0003] In various applications using epoxy resin formulations, adducts of polyamines with small amounts of epoxy resins are used to improve the compatibility of polyamines in epoxy resin formulations and to adjust the reactivity of polyamines. For example, US Patent No. 2,901,461 ("the '461 patent") describes compositions comprising adducts of polyamines and polyglycidyl ethers; and the use of such adducts in epoxy resin formulations and compositions. However, the formation of the adducts described in the prior art leads to a distinctly unwanted increase in viscosity compared to unmodified polyamines. [0004] For example,...

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): C08G59/18C08L63/00C08G59/50
CPCC08G59/184C08G59/50C08L63/00C08L79/02C08K5/04
Inventor M·J·马克斯
Owner BLUE CUBE IP