Flame retardant flexible foam

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

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521 79, 521 81, 521 94, 521143, 521149, 521907, 521 54, 523218, 523219, 523179, C08J 910

Patent

active

056504489

ABSTRACT:
A flexible closed cell polymeric foam contains expandable graphite as fire retardant. The foam is prepared by mixing a polymer, a curing agent, at least one blowing agent and an expandable graphite at a temperature of at least 100.degree. C. but below a temperature causing activation of the blowing agent to foam a foamable mixture and thereafter heating the foamable mixture to activate the blowing agent and cause foaming. The method of preparation may additionally include a curing step in which the foamable mixture is heated under pressure to activate simultaneously each of a curing agent, which is preferably a free radical curing agent, and a foaming agent. The foams are capable of meeting the US Federal Aviation Authority Standards, especially the oil burner test of FAR 25 Appendix F, part II.

REFERENCES:
patent: 3574644 (1971-04-01), Olstowski et al.
patent: 4698369 (1987-10-01), Bell
patent: 4722945 (1988-02-01), Wood et al.
patent: 5169876 (1992-12-01), Heitmann et al.
patent: 5192811 (1993-03-01), Heitmann et al.
patent: 5397643 (1995-03-01), von Bonin et al.
WPI Abstract Accession No.: 95-281016/37 & JP070179641 A, 18 Jul. 1995.
WPI Abstract Accession No.:95-203956/27 & JP070118435 A, 09 May 1995.
WPI Abstract Accession No.:93-039401/05 & JP040363341 A, 16 Dec. 1992.

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