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US 11,447,613 B2Granted
Polymeric foam comprising low levels of brominated flame retardant and method of making same
AssigneeOwens Corning Intellectual Capital, LLC
InventorsBarbara A. Fabian, S. Thomas Brammer, Yadollah Delaviz, David R. Beatty, William James Ramsey, Troy N. Weyher
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Abstract
A composition and method for making polymeric foam is provided. The composition includes a flame retardant composition comprising brominated polymeric compounds. The resulting polymeric foams have a low bromine content of from about 0.01-0.5 wt. %, while maintaining acceptable flame retardant characteristics.
Claims18
A foamable polymeric mixture comprising:
- a polymer composition;
- a single blowing agent composition, wherein the single blowing agent composition consists of hydrocarbons, hydrofluoroolefins, hydrofluorocarbons, or mixtures thereof;
- and
- a flame retardant composition comprising a brominated polymeric compound, at least one of a synergist or a stabilizer, and a carrier resin, wherein the brominated polymeric compound comprises from 0.05 wt. % to 0.35 wt.% of the foamable polymeric mixture excluding the single blowing agent composition;
- wherein the foamable polymeric mixture comprises from 0.01 wt. % to 0.21 wt. % bromine,
- wherein the foamable polymeric mixture is devoid of additional blowing agents, and
- wherein the foamable polymeric mixture is capable of producing an extruded polymeric foam with a density from 1.0 pcf to less than 2.5 pcf.
4 more elements
An extruded polymeric foam comprising:
- a foamable polymeric material, the material comprising:
- a polymer composition;
- a flame retardant composition comprising a brominated polymeric compound, at least one of a synergist or a stabilizer, and a carrier resin;
- and
- a single blowing agent composition, wherein the single blowing agent composition consists of hydrocarbons, hydrofluoroolefins, hydrofluorocarbons, or mixtures thereof;
- wherein the foamable polymeric material is devoid of additional blowing agents,
- wherein the brominated polymeric compound comprises from 0.05 wt. % to 0.35 wt. % of the foamable polymeric material excluding the single blowing agent composition, and
- wherein the extruded polymeric foam comprises from 0.01 wt. % to 0.21 wt. % bromine, and
- wherein the extruded polymeric foam has a density from 1.0 pcf to less than 2.5 pcf.
6 more elements
An extruded polymeric foam comprising:
- a foamable polymeric material, the material comprising:
- a polymer composition;
- a flame retardant composition comprising a brominated polymeric compound, at least one of a synergist or a stabilizer, and a carrier resin;
- and
- a blowing agent composition consisting of one or more hydrofluorocarbons;
- wherein the foamable polymeric mixture is devoid of additional blowing agents,
- wherein the brominated polymeric compound comprises from 0.05 wt. % to 0.35 wt. % of the foamable polymeric material excluding the blowing agent composition, and
- wherein the extruded polymeric foam comprises from 0.01 wt. % to 0.21 wt. % bromine.
5 more elements
Dependencies are inferred from the claim text.