Process for flame retarding cellulosics

Details Process for flame retarding cellulosics Process for flame retarding cellulosics

1976-09-02

1978-10-31

Gwinnell, Harry J.

Coating processes

With post-treatment of coating or coating material

Chemical agent applied to treat coating

427342, 427353, 428276, 428921, C09K 328, B05D 304

Patent

active

041235746

ABSTRACT:
An improved process for imparting durable flame retardancy to textile materials wherein said material is impregnated with a solution having a poly(hydroxymethyl) phosphonium cation content 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 enclosed chamber to an atmosphere containing gaseous ammonia and thereafter contacting with water, the improvement comprising, impregnating said material with a poly(hydroxymethyl) phosphonium cation containing solution and a basic catalyst, said solution 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.

REFERENCES:
patent: 2772188 (1956-11-01), Reeves et al.
patent: 3096201 (1963-07-01), Contes et al.
patent: 3310419 (1967-03-01), Wagner
patent: 3607356 (1971-09-01), Beninate et al.
patent: 3919439 (1975-11-01), Perkins et al.
patent: 4068026 (1978-01-01), Wagner

Affiliated with

Also associated with

Rating

Process for flame retarding cellulosics does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for flame retarding cellulosics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for flame retarding cellulosics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1835879