Methods, systems and compositions for fire retarding substrates

Details Methods, systems and compositions for fire retarding substrates Methods, systems and compositions for fire retarding substrates

2007-05-01

2007-05-01

Cameron, Erma (Department: 1762)

Coating processes

Centrifugal force utilized

C427S365000, C427S393300, C427S394000, C427S396000, C106S015050, C106S018110, C106S018130, C106S018140, C106S018150, C106S018160, C106S018170, C106S018180, C106S018210, C106S018220, C106S018230, C106S018260, C106S018300, C106S018310, C106S018320, C106S018330, C106S018340

Reexamination Certificate

active

10723828

ABSTRACT:
A closed-loop system and process is used for applying fire retardant chemicals to fibers. Fibers are preferably positioned in a vessel such as a dye machine which circulates the fire retardant chemicals. After absorption of the fire retardant composition, non-absorbed fire retardant chemicals are recovered and re-used on subsequent batches of fibers. Recovery can be achieved by directing the non-absorbed fire retardant composition into a second dye machine containing additional fibers, or by extracting the fire retardant composition by centrifugation or other means, or by a combination of the two processes. The process is environmentally friendly, and allows for higher throughput on impregnating fibers with fire retardant chemicals.

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International Search Report Dated May 18, 2004, For WO 2004/050980.

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