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P.A. Cusack

Tin-based flame retardants and smoke suppressants for unsaturated polyester resins (in English)

Polimery 1995, No 11-12, 650

DOI: dx.doi.org/10.14314/polimery.1995.650


Author's work has been reviewed on the modification of selected halogenated and halogen-free unsaturated polyester resins with inorganic tin compounds intended to impart the flame-retardant and smoke-suppressing properties and conducted at the Laboratories of the International Tin Research Institute (ITRI), Uxbridge, UK. Two commercial products were used: zinc stannate, ZnSnO3 (ZS) and zinc hydroxystannate, ZnSn(OH)6 (ZHS). The halogenated unsaturated polyester resins were synthesized with the aid of various chlorine and bromine compounds such as: tetrachlorophthalic anhydride (TCPA), tetrabromophthalic anhydride (TBPA), dibromotetrahydrophthalic anhydride (DBTHPA), chlorendic anhydride (CA), and dibromoneopentyl glycol (DBNPG). Halogen-free unsaturated polyester resins containing halogenated additives such as chlorinated paraffin wax Cereclor 70 (C70) and decabromodiphenyl oxide (DBDPO), were also investigated.

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