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TRIGON Chemie Datasheet


Methyltetrahydrophthalic anhydride with BTEAC pre-catalysed
Tetrahydromethylphthalic anhydride, Benzyltriethylammonium chloride
Structural formula of  MTHPA-EG/6K
11070-44-3 (MTHPA) /56-37-1 (BTEAC)
EC no.:
234-290-7 (MTHPA) /200-270-1 (BTEA)
Appearance:yellow to brown liquid
Purity(%):min. 99.0
Colour (Gardner):max. 10
Free acid (%):max. 1.0
Characteristic properties:
Viscosity at 25°C (cP):50 - 80
Methyltetrahydrophthalic anhydride (MTHPA-EG) is a versatile low cost liquid anhydride hardener. MTHPA-EG/6K is one of several pre-catalysed versions of MTHPA-EG. It contains 1-2% BTEAC (N-Benzyl-N, N,N-triethylammonium chloride). This product is specially formulated to remain liquid during the winter season (typical pour point -20°C to -15°C). It provides unique characterisics to epoxy cured materials such as high volatage and temperatur resistance.

It finds use in the coating of wind mill blades and in reinforced plastics, filament winding products, construction and sport equipment, laminated sheets as well as in the production of electrical parts such as capacitors, resistors, transformers, ignition coils.

Specific applications include filament winding, adhesive, potting, casting, encapsulation and vaccumimpregnation.

Typical formulation:

Epoxy: . . . . . . . . . . Bisphenol-A type, epoxy equivalent 190
Cure temperatur: . . 100°C (app. 25 minutes gel time)

Mix compositon:
Epoxy equivalent/anhydride equivalent = 1
Epoxy: . . . . . . . . . 100 phr
Anhydride: . . . . . . 87 phr
200 kg metal drums, 1000 kg IBCs, 1200 kg IBCs
HS Taric-no.:
2917 35 00
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09/2012 PR

Suggestions for processing and use of our products correspond to our best knowledge and are always given without obligation. There is no liability for incorrect formulations and mixing recommendations. Each processor of our products is liable for compliance with all legal regulations, including those in the field of patent law.

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