October 1990 Additives for Polymers

us 4,925,887 LATENT HARDENER FOR MELAMINE RESINS Ciba-Geigy Priority Date: 8 April, 1988.

3-chloro-1,2-propanediol.

us 4,925@38

us 4,925,889

us 4,925,903

US 4,927,869

US 4,92’7,873

US 4,927,874 FILLERS

STABLIZERS FOR POLYURETHANES BASF AG priority Date: 21 October 1987

Mixture of an amine, benzotiazoles and a-tocopherol.

STABILIZED CARBON BLACK FILLED POLYOLEFINES Uniroyal Chemical Co. Priority Date: 26 October, 1988.

N-phenyl-N’- (p-toluene sulphonyl)-p-phenylene diamine as the stabilizer and 4,4’-bis- (alpha, alpha dimethyl benzyl) diphenylamine as the second stabilizer.

POLYMERS CONTAINING HAL‘S Pennwalt Corp. Priority Date: 18 September, 1989.

A process for making a polymer containing hindered amine light stabilizing groups and polymers made thereby.

GLASS FIBRES FOR REINFORCING POLYMERS PPG Industries Inc. Priority Date: 15 September, 1988.

Surface treated with an aqueous chemical composition.

FIRE RETARDANTS FOR POLYPHENYL ETHER RESINS Pennwalt Corp. Priority Date: 25 March, 1988.

Halophenyl esters.

Cyprus Mines Corp. Priority Date: 23 September, 1988.

Benefkiated talcs.

US 4,929,652 LIGHT STABILIZERS FOR POLYOLEFINES Ciba-Geigy

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