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UNIPLEX M8M

                                        Melamine Molybdate

                                        CAS RN 65235-34-9

Description:                A fire and smoke suppressant additive for flexible and rigid PVC compounds.  This product may be also useful in a number of different polyolefin and polyamide applications as a synergist with melamine-based non-halogen flame retardants.

Applications:

                                    Rigid and Flexible PVC compounds

                                    Flexible halogenated alloys (e.g. PVC/PVDF)

                                    Non-halogen Polyolefinic compounds

                                    Non-halogen glass-filled Nylon compounds

Typical Properties:

            Molybdenum Content (%)                    45 min.

            Thermal Stability (5% Loss)                  >300°C

Solubility (g/100g Solvent at 25°C):

            Water                                                               Insoluble

            Acetone                                                           Insoluble

            Isopropanol                                                      Insoluble

            Xylene                                                              Insoluble

            Tetrahydrofuran                                                Insoluble

General Specifications:

Appearance                                                      Off-white Powder

Particle Size, D₉₇, Laser Diffraction                   5 microns max.

pH,5 % in Water                                              5 - 8    

Loss on Drying (2 hr, 135°C)                           0.5 max.

Health & Safety:        Refer to Material Safety Data Sheet (MSDS).

Application Data:

This product is useful in both rigid and flexible formulations of halogenated vinyl resins as a replacement for Ammonium octamolybdate as a smoke suppressant. Increased oxygen indices are also found indicating improved flame resistance.

Uniplex M8M was compounded into rigid PVC at 200°C with Geon 30 PVC, 2 phr Microthene 510 Lubricant, 2 phr Tin Thioglycolate Stabilizer and 2 phr Uniplex M8M. The compound was compression molded and subjected to various tests with the results tabulated in Table 1.

TABLE 1  RIGID PVC COMPOUNDS

Flexible PVC(Geon 30) compounds were prepared by dry blending additives with Geon 30 PVC and then compounding in a two roll mill at 160°C. The compounds were compression molded and tested. The results are tabulated in Table 2. The general purpose formula used was:

TABLE 2 FLEXIBLE PVC COMPOUNDS

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