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| FR-222 |
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| Dibromoneopentyl Glycol (DBNPG);2,2-Bis (bromomethyl)-1,3-propanediol |
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FR-522, dibromoneopentyl glycol (DBNPG), a reactive flame retardant compound, contains 60% aliphatic bromine.
Its high degree of homogeneity (the material is typically 99% diol), is of benefit to the formulator. Thermosetting polyester resins can be formulated over a wide range of compositions to provide a broader selection of resin properties than those available with anhydride flame retardants.
Resins formulated with FR-522 have high chemical and flame resistance, minimal thermal colour instability and excellent light stability. FR-522 can also be used with polyurethane foams or elastomers. |
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Appearance: White, crystalline powder
Assay, GLC, % minimum: 98.5
Melting point, C minimum: 109.0
Melt colour, Gardner scale, maximum: 4
Bromine content, % minimum: 60.0
Hydroxyl content, % minimum: 12.8
Moisture, Karl Pischer, % maximum: 0.10
MW 261.94 - Br: 61.0% |
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