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US 5,399,600 AGranted
Stabilized, flame resistant polycarbonate moulding compounds
AssigneeBayer Aktiengesellschaft
InventorsHans-Josef Buysch, Gerd Fengler, Gerhard Fennhoff, Klaus Horn
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Abstract
The present invention provides blends of polycarbonates and triphenylphosphane sulphonates and optionally fluorinated polyolefins and/or further customary additives, together with a process for the production of the blends according to the invention.
Claims4
Blends of thermoplastic, aromatic polycarbonates and
- a) triphenylphosphane sulphonates of the formula (I) ##STR3## in quantities of 0.001 wt. % to 1 wt. %, related to the weight of polycarbonate, in which "R.sup.1, R.sup.2 and R.sup.3 " are identical or different and may be H, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, F, Cl, carboxy or --CN,
- "X" is hydrogen or --SO.sub.3 (Y/n), and n=1 if "Y" is an alkali cation and n=2 if "Y" is an alkaline earth cation,
- wherein the sulphonate groups are in m- or p-position relative to the phosphorus and the residues R.sup.1, R.sup.2 and R.sup.3 are in o-, m- and p-position relative to the phosphorus, and optionally
- b) fluorinated polyolefins in quantities of 0.001 wt. % to 1 wt. %, again related to the weight of polycarbonate.
1 more element
Dependencies are inferred from the claim text.