Coating processes – Solid particles or fibers applied – Applying superposed diverse coatings or coating a coated base
Patent
1994-09-12
1995-10-03
Dudash, Diana
Coating processes
Solid particles or fibers applied
Applying superposed diverse coatings or coating a coated base
4273933, 427373, B05D 302, A62C 304, A62C 502
Patent
active
054550653
ABSTRACT:
A method for manufacturing fire retardant cellulose fibers. The method comprises mixing limestone with shredded cellulosic fibers, mixing an acidic agent with the fibers, and depositing water on the mixture of fibers, limestone and acidic agent. A chemical reaction results from the limestone and the acidic agent being combined in a sufficiently moist environment. The reaction liberates carbon dioxide gas which causes a mechanical foaming action, thereby breaking down and distributing the produced particles of the chemical reaction. The preferred acidic agent is ammonium sulfate combined with boric acid. The method preferably includes the application of an anti-static agent in the step that includes mixing the limestone with the fibers. The water deposited preferably comprises an amount substantially in a range from 6%-16% of the weight of the fibers.
REFERENCES:
patent: 3674540 (1972-07-01), Pergaminos
patent: 3676170 (1972-07-01), Kempthorne
patent: 4132655 (1979-01-01), Draganov
patent: 4182681 (1980-01-01), Gumbert
patent: 4184311 (1980-01-01), Rood
patent: 4645696 (1987-02-01), Rood
patent: 4990368 (1991-02-01), Johnson et al.
Dudash Diana
Foster Frank H.
LandOfFree
Treatment for improving cellulosic insulation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Treatment for improving cellulosic insulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Treatment for improving cellulosic insulation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1076237