Flame retardant Composition
AssigneeBromine Compounds Ltd.
InventorsGelmont Mark, Michael Peled, Dina Alon, Ron Frim, Yoav Bar-Yaakov
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Abstract
A liquid flame retardant composition having one or more flame retarding agents, which are the epoxides obtainable by reacting tetrabromobisphenol A with epichlorohydrin and their end-capped derivatives represented by Formula (1), is provided. The liquid composition is especially useful in the preparation of rigid polyurethane foams.
Claims26
A liquid flame retardant composition which comprises:
- A) One or more flame retarding agents represented by Formula (1):
- wherein n, the degree of polymerization, is an integer in the range of 0 to 5 and R1 and R2 are independently selected from the group consisting of the following monovalent radicals:
- and
- B) one or more liquids selected from the group consisting of polyols and esters of phosphoric acid.
A process for preparing flame-retarded rigid polyurethane foams, which comprises reacting a polyol component and a diisocyanate component in the presence of one or more flame retardant agents represented by Formula 1:
- wherein n, the degree of polymerization, is an integer in the range of 0 to 5 and R1 and R2 are independently selected from the group consisting of the following monovalent radicals:
- and at least one blowing agent, at least one catalyst and optionally at least one surfactant.
Dependencies are inferred from the claim text.