B - Operations – Transporting – 05 – C
Patent
B - Operations, Transporting
05
C
32/28, 117/34
B05C 11/02 (2006.01) B05D 5/00 (2006.01) D06M 13/282 (2006.01) D06M 13/46 (2006.01)
Patent
CA 1082054
ABSTRACT OF THE DISCLOSURE An improved apparatus and process for imparting durable flame retardancy to textile materials wherein said material is impregnated with a solution having a poly(hydroxymethyl) phosphonium cation con- tent of from about 10 to about 60 percent by weight, dried to a moisture content of from about 0 to about 8 percent, aerated by passing air through the dried material, cured by polymerizing the monomer on and in the cellulose material with exposure in an en- closed chamber to an atmosphere containing gaseous ammonia and thereafter contacting with water, the improvement comprising, impreg- nating said material with said solution containing poly(hydroxy- methyl) phosphonium cation having a pH of from about 2 to about 9, and after contacting said material with said water, further exposing said material to an atmosphere containing gaseous ammonia. - 1 -
264247
Hooker Chemicals And Plastics Corp.
Sherman
LandOfFree
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