Fire resistant laminar cushioning material

Details Fire resistant laminar cushioning material Fire resistant laminar cushioning material

1989-12-11

1990-08-14

Van Balen, William J.

Stock material or miscellaneous articles

Sheet including cover or casing

Foamed or expanded material encased

428 76, 428284, 428286, 428287, 4283166, B32B 326

Patent

active

049486489

ABSTRACT:
A composite fire resistant laminar cushioning material is disclosed. The material comprises a foamed polyphosphazene upper lamella and a foamed polyurethane lower lamella. The foamed polyphosphazene further comprises a lamelliform substantially unfoamed outer first layer and a substantially foamed second layer. The cushioning material is capable of passing the Cal-133 flammability test.

REFERENCES:
patent: 4536520 (1985-08-01), Mueller
patent: 4619860 (1986-10-01), Brown et al.
patent: 4870113 (1989-09-01), Mueller et al.

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