Reactive and additive halogen-free phosphorus FRs for PC/ABS, epoxy laminates, PA66, and engineering thermoplastics.
Reactive and additive phosphorus-based flame retardants for engineering thermoplastics, PC/ABS blends, epoxy resins, and rigid foam. Flamisol supplies the FL-P product family covering DOPO derivatives, resorcinol-based oligomeric phosphates (RDP), and bisphenol-A diphosphate (BDP) for compounders and resin formulators.
CAS 35948-25-5. 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-oxide. Reactive halogen-free FR that incorporates covalently into epoxy networks, polyamides, and polyesters during processing. Widely used in epoxy laminates, printed circuit boards, and engineering plastics where halogen-free certification is required (IEC 61249-2-21, UL 94 V-0 without halogens).
| Property | FL-DOPO |
|---|---|
| CAS No. | 35948-25-5 |
| Phosphorus content | 14.3 wt% |
| Form | White crystalline powder |
| Melting point | 118–122°C |
| Purity | ≥98% |
| Mechanism | Reactive: covalent incorporation |
| Halogen content | None |
| Compatible resins | Epoxy, PA6, PA66, PET, PBT |
| TSCA status | Listed |
| Packaging | 25 kg bags / 200 kg drums |
CAS 57583-54-7. Oligomeric phosphate ester FR for PC/ABS, PPO/HIPS, and PC/PET blends. Non-halogen, low volatility, plasticizing action reduces processing temperature requirements. Excellent thermal stability to 300°C allows use in high-temperature compounding. Primary product for PC/ABS enclosure applications requiring UL 94 V-0 without halogen.
| Property | FL-RDP |
|---|---|
| CAS No. | 57583-54-7 / 125997-21-9 (RDP is an oligomeric mixture; both CAS numbers refer to the same commercial product) |
| Phosphorus content | 10.8 wt% |
| Form | Viscous liquid |
| Viscosity (25°C) | ~500–700 cP |
| Density | ~1.31 g/cm³ |
| Thermal stability | >300°C |
| Halogen content | None |
| Typical loading | 8–15 wt% in PC/ABS |
| TSCA status | Listed |
| Packaging | Drum / IBC |
CAS 181028-79-5. Oligomeric phosphate ester. Lower volatility than RDP with higher molecular weight and phosphorus content. Used in PC/ABS, PPO/HIPS, and engineering thermoplastic blends. Preferred over RDP in applications requiring lower blooming and higher heat distortion temperature retention.
| Property | FL-BDP |
|---|---|
| CAS No. | 181028-79-5 |
| Phosphorus content | 8.9 wt% |
| Form | Viscous liquid |
| Density | ~1.28 g/cm³ |
| Thermal stability | >300°C |
| Halogen content | None |
| Typical loading | 10–18 wt% in PC/ABS |
| TSCA status | Listed |
| Packaging | Drum / IBC |
FL-DOPO, FL-RDP, and FL-BDP are supplied DDP by a US-based supplier. SDS, TDS, and TSCA compliance letters on request. DDP pricing returned within one business day.
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