Flame-retarded styrene-containing formulations
OwnerYaniv Hirschsohn, Eyal Edeninventors
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Abstract
A composition comprising: an impact modified styrene-containing polymer; at least one bromine-containing flame retardant; at least one dialkyl phosphinic acid metal salt M1n+(R1R2PO2)n wherein M1 is a metal cation with valence n and R1, R2 are alkyl groups which may be the same or different; at least one anti-dripping agent, wherein the total concentration of the bromine-containing flame retardant and the dialkyl phosphinic acid metal salt is less than 28% by weight based on the sum of all components in the composition, wherein said composition is free of antimony and meets UL-94 V-1/1.6 mm or UL-94 V-0/1.6 mm test requirements.
Claims23
A composition comprising:
- an impact modified styrene-containing polymer;
- wherein the impact modified styrene-containing polymer is selected from the group consisting of acrylonitrile-butadiene-styrene (ABS) and high impact polystyrene (HIPS);
- at least one bromine-containing flame retardant;
- at least one metal hypophosphite salt Mq+(H2PO2)q, wherein M indicates a metal cation with valence q;
- and
- at least one anti-dripping agent,
- wherein the total concentration of the bromine-containing flame retardant and the metal hypophosphite is less than 28% by weight based on the sum of all components in the composition, wherein the bromine concentration of the composition is from 9.5 to 15.5% by weight based on the total weight of the composition, wherein the composition is antimony-free and meets UL-94 V-1/1.6 mm or UL-94 V-0/1.6 mm test requirements.
Dependencies are inferred from the claim text.