Patent ID: 6225387
Filing Date: 2001-05-01
Classification: C08K

Abstract:
A stabilized, flame retarded polymer composition comprising:(a) a polymer selected from the group consisting of high density polyethylene; low density polyethylene; polypropylene; general-purpose polystyrene; impact-modified polystyrene; medium-impact polystyrene; high-impact polystyrene; acrylonitrile/styrene resins; butadiene/styrene resins; acrylonitrile/butadiene/styrene resins; acrylic resins; methacrylic resins; and a mixture thereof;(b) an effective amount of halogenated flame retardant;(c) an acid scavenger selected from the group consisting of a hydrotalcite; an amorphous basic aluminum magnesium carbonate; and a mixture thereof, in an amount of about 0.2% to about 6.0% by weight, based on the total weight of aliphatic halogen content in the composition;(d) an organotin heat stabilizer in an amount of about 1.0% to about 20% by weight, based on the total weight of aliphatic halogen content in the composition; and(e) a polyhydroxy aliphatic costabilizer in an amount of about 0.1% to about 2.5% by weight, based on the total weight of aliphatic halogen content in the composition.