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Composition comprising a polymer based on epoxide compounds

A technology of epoxy compounds and polyepoxides, applied in the field of compositions containing epoxy compound-based polymers, can solve problems such as inability to improve fracture toughness

Active Publication Date: 2017-12-15
HEXION GERMANY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it has been found that the use of such compositions does not increase the fracture toughness to the desired level

Method used

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  • Composition comprising a polymer based on epoxide compounds
  • Composition comprising a polymer based on epoxide compounds
  • Composition comprising a polymer based on epoxide compounds

Examples

Experimental program
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Embodiment Construction

[0059] The invention will be explained in more detail with the aid of the following examples.

[0060] Table 1

[0061]

[0062] Preparation of component a) of the composition (2) according to the invention:

[0063] to 100 parts by weight of epoxy resin 861 Add 1.5 parts by weight of polypropylene glycol and homogenize for about 0.5 hours at room temperature (23° C.). Then the addition of quartz powder is carried out.

[0064] Preparation of component b) of the composition (2) according to the invention:

[0065] In 95 parts by weight anhydride curing agent In 871, 6 parts by weight of W35 dissolved for 1-2 hours. in will After complete dissolution of W35, the solution was cooled to room temperature (23°C).

[0066] Components a) and b) were mixed with one another at room temperature and cured at 160°C. Test samples for determination of fracture toughness were cut from the cured compositions (Table 2).

[0067] The preparation of comparative compositions (...

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Abstract

The invention relates to a composition comprising components a), b) and c), to a process for the preparation thereof, and to the use thereof. In one embodiment, a composition is provided which comprises the following components a), b) and c): a) from 75 to 99.5% by weight of a polymer based on epoxide compounds, from 0.5 to 25% by weight of at least one polyhydric alcohol, and optionally additives, b) from 80 to 99% by weight of a curing agent which is suitable for curing the polymer based on epoxide compounds, from 1 to 20% by weight of a polycaprolactone-polysiloxane block copolymer, optionally an accelerator, and optionally additives, and c) optionally an accelerator.

Description

technical field [0001] The present invention relates to compositions comprising epoxy-based polymers, processes for their preparation and uses thereof. Background technique [0002] Polymers based on epoxy compounds are mainly reaction products of polyfunctional hydroxyl compounds and epichlorohydrin. The crosslinking of the polymer matrix takes place by polyaddition via epoxide groups with corresponding curing agents. Use them for different types of applications. They are processed as casting resins (reactive resins), molding compounds (reactive resin materials) or as prepregs. [0003] As casting resins, they have a wide range of electrotechnical applications, e.g. for the production of components for electric motors, high-voltage bushings, insulators or capacitors or also in the construction industry as lacquers and coatings for surface protection, concrete structures Bonding of components or as a high-strength, chemical-resistant finish. Casting resins based on epoxy...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L77/10C08L71/02C08K3/36
CPCC08L63/00C08L2205/03C08L77/10C08L71/02C08K3/36C08K5/053C08L83/10C08G59/62C08G77/445C08G59/42C08G59/50C08G59/4014C08G59/245C08G59/4238C08L2205/06
Inventor G·库尔曼C·朔伊尔P·萨尔塔皮达斯T·德雷森
Owner HEXION GERMANY GMBH
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