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| Omicure U-415 |
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| 10097-09-3 |
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OMICURE U-415, an aromatic substituted urea, is intended for use as a latent accelerator for the dicyandiamide cure of epoxy resins. The addition of OMICURE U-415 to epoxy/ dicy formulations produces shelf stable one part products which cure in shorter times and/or at lower temperatures. U-415 is a lower cost mixed isomer version of OMICURE U-52.
Of the CVC substituted ureas, methylene bis (phenyl dimethyl urea) provides the best combination of acceleration, long shelf life and maintenance of cured properties in dicy cured DGEBA. However, formulations containing U-415 have shorter room temperature shelf lives and cure somewhat slower than those containing OMICURE U-52.
Suggested use levels of OMICURE U-415 in DGEBA/DICY are < 5 phr. At these levels curing can be accomplished in about eighty minutes at 100¡ÆC and in less than five minutes at temperatures > 150'C. Cure times and shelf lives are dependent on the composition of the formulated product and your particular end application. Some of the factors which can effect shelf life areformulation ingredients and compounding parameters. Ingredients in which OMICURE U-415 is ins oluble at processing and storage temperatures will enhance overall storage stability. OMICURE U-415 can be incorporated into your formulation concurrent with the dicy addition.
* APPLICATIONS
As a latent accelerator in the dicyandiamide cure of epoxy resins used in:
- Adhesives
- Powder Coatings
- Prepregs
- Encapsulation
- Reinforcements |
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Appearance : Clean powder
Color : Off white
Odor : Ammoniacal
Melting Point, 'C : 190 - 210
Moisture Content, max % : 0.7
Particle size, min. % through a 325 mesh screen : 80
Particle size, U-415M (micronized) min. % through a 325 mesh screen : 95 |
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| There are no existing companies to distribute selected chemical product |
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