Brominated syndiotactic polystyrene and the use thereof

Details Brominated syndiotactic polystyrene and the use thereof Brominated syndiotactic polystyrene and the use thereof

1997-04-11

1999-03-16

Anthony, Joseph D.

Compositions

Fire retarding

For solid synthetic polymer and reactants thereof

524464, 524469, 525355, 525357, 525356, C09K 2108, C08F 822

Patent

active

058825517

ABSTRACT:
The present invention provides a new flame-retardant additive comprising brominated syndiotactic polystyrene. The additive has a melting temperature in excess of about 325.degree. C. and it displays a noncrystalline order. The additive also has less than 1500 ppm halogen located on the backbone of the syndiotactic polystyrene as measured in HBr equivalents. The additive provides for better color and improved thermal stability as compared to the use of conventional brominated polystyrene.

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