Hooker Chemicals & Plastics Corporation

Occidental Chemical Corporation

Daniel J Scharf

Charles S Ilardo

Howard A Chamberlin

Willis T Schwartz

Gideon Salee

George M Wagner

Paul Zwaenepoel

Li-Chung Chao

Guido Strzelbicki

Polyamides, flame retarded with a halogenated derivative and blended with a polymer blend resin being at least partially incompatible and having a lower melt viscosity than the polyamide, to improve the arc tracking resistance of the polyamide, are disclosed. The polyamides are particularly useful in the manufacture of flame retarded electrical components.

Fire retardant polyamide

Nylon polymer compositions are rendered flame retardant by incorporating therein an effective flame retardant amount of a salt of 2,5-dimercapto-1,3,4-thiadiazole and a metal from the group consisting of Zn, Mn, Ba, Ni, Co, Fe, Cu, Mo, and Cr.

Flame retardant polyamide compositions

Polyolefins such as polyethylene, polypropylene, and the like are rendered flame retardant by incorporating therein about 2-60 percent of a combination of (1) a Diels-Alder adduct of a chlorinated cyclopentadiene and a polyunsaturated cycloaliphatic compound and (2) a brominated aromatic compound.

Flame retardant polymer compositions

An improved fire retardant polyester polymer system and composition comprising an interpolymer of a reaction product of hexachlorocyclopentadiene, a polyhydric alcohol, a carboxylic acid containing aliphatic carbon-to-carbon unsaturation, a styrene-type monomer, maleic acid or anhydride and a copolymerizable brominated neopentylacrylate comonomer.

Flame retardant polymer systems and polymer compositions

A process is disclosed for sequestering metal ions by treating said ions with a compound of the formula: ##STR1## wherein R' is selected from the group consisting of .sup.- OH, alkyloxy and aryloxy; and R is selected from the group consisting of ##STR2## wherein Z is .sup.- OH, alkyl, aryl, alkoxy and aryloxy.

Process for sequestering metal ions

Brominated carbamoyl derivatives of the structure:

Brominated carbamoyl derivatives

Compounds of the formula: ##STR1## wherein R' is selected from the group consisting of .sup.- OH, alkyloxy and aryloxy; and R is selected from the group consisting of ##STR2## wherein Z is .sup.- OH, alkyl, aryl, alkoxy and aryloxy, provided when R' is .sup.- OH, ##STR3## are disclosed, having utility as metal ion sequestrants and flame retardant additives.

Phosphonomethyl compounds

A process is disclosed for sequestering metal ions by treating said ions with a compound of the formula: ##EQU1## wherein R' is selected from the group consisting of .sup.-OH, alkyloxy and aryloxy; and R is selected from the group consisting of ##EQU2## wherein Z is .sup.-OH, alkyl, aryl, alkoxy and aryloxy.

Described are brominated carbamoyl derivatives of the structure: (X.sup.1) (X.sup.2) C -- CH.sub.2 -- (R.sup.2).sub.n -- O -- C(O)N(R) (R.sup.1)                         (X) wherein:

Brominated carbamoyl derivatives useful to impart flame retarding

Compounds of the formula: ##EQU1## wherein R' is selected from the group consisting of .sup.-OH, alkoxy and aryloxy; and R is selected from the group consisting of ##EQU2## wherein Z is .sup.-OH, alkyl, aryl, alkoxy and aryloxy, provided when R' is .sup.-OH, ##EQU3## are disclosed, having utility as metal ion sequestrants and flame retardant additives.

Growing community of inventors

East Amherst, NY, United States of America

Daniel J Scharf