Zinc stannates, hydroxystannates flame retardants

Zinc hydroxystannate and zinc stannate are very effective flame-retardant synergists when incorporated at levels of 1-10% into... [Pg.207]

Cusack, P.A. and Hornsby, P.R., Zinc hydroxystannate/zinc stannate-coated fillers Novel flame retardants and smoke suppressants for polymeric materials, J. Vinyl Additive Technol., 5, 21-30, 1999. [Pg.184]

By far the most important tin-based fire retardants are the zinc stannates - zinc hydroxystannate (ZHS) and its anhydrous analog, zinc stannate (ZS). Originally developed at ITRI during the mid-1980s, these additives are now being marketed worldwide as non-toxic flame retardants and smoke suppressants for use in a wide range of polymeric materials. ... [Pg.340]

Work in Poland has shown that zinc stannate and zinc hydroxystannate are the most efficient ignition and smoke retardants for GRP laminates, with antimony trioxide also being a good smoke suppressant. This appeared to be irrespective of the presence of other flame retardant additives. The resin systems also contained halogen additive or retardant components on the polyester backbone. [Pg.76]

Interest in tin compoimds as flame retardants for plastics has grown over the past 15 years. More than a dozen substances have been tried with some success, but only three of them, namely zinc hydroxystannate, zinc stannate and zinc oxide, are currently important. They all have low toxicity. Zinc stannate is preferred for use in polymers processed at temperatures over... [Pg.58]

Stannates. Zinc stannate [12036-37-2], Alcan s FLAMTARD S, and zinc hydroxystannate [12027-96-2], FLAMTARD HS, are both white water-insoluble powders useful as smoke suppressants in PVC. They can partly replace antimony oxide as flame-retardant synergists in halogen-containing flame-retardant formulations, with reduced smoke (16,17). [Pg.3196]

Certain tin compounds, in particular, zinc hydroxystannate, zinc stannate and tin(iv) oxide, are effective flame retardants in a wide range of polymeric materials and offer several advantages over many of the available alternatives ... [Pg.351]

Keywords tin, tin oxide, zinc hydroxystannate, zinc stannate, organotin compounds, antimony trioxide, alumina trihydrate, magnesium hydroxide, titanium dioxide, molybdenum trioxide, iron oxide, zinc borate, alumina, halogenated flame retardants, metal halides, thermal analysis, Mossbauer spectroscopy, fire-retardant mechanism, ultrafine powders, coated fillers. [Pg.352]