Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-03-10
1978-10-24
Jacobs, Lewis T.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
106 15FP, 106 85, 106 90, 106104, 260 37N, 260 40R, 260 4213, C08L 6302
Patent
active
041220595
ABSTRACT:
Compositions of matter are provided by the invention herein which compositions may be in liquid or solid forms depending upon their projected uses, all of which provide fire retardancy in said uses which generally involve shaped articles such as coatings or moldings. The fire retardancy objective is accomplished by locking water into or available to the shaped article by the provision of an inorganic salt hydrate, such as aluminum sulfate hydrate or ferrous sulfate hydrate and by providing also a hydraulic cement, such as Portland cement. The powdered mixture of the salt hydrate and cement may also preferentially contain an alumina silica material which preferably is in fibrous form having fibers in it that have lengths of about 0.25 to about 2.0 inch. Also present in said powder may be an iron oxide and a manganese oxide, such as ferric oxide and manganous oxide, respectively. In certain instances graphite is incorporated into the mixtures, as in the case when epoxy polymers are used. It is preferred that the graphite be in fibrous form (0.25 to 0.5 inch), and while it can be used in amounts of about 1% to about 10%, the amount of 5% by weight is generally preferred.
While the powders may be applied as a coating to a surface of many substrates, the greatest resistance to fire is effected by uniformly distributing said mixtures of this invention into the material from which the shaped article is to be prepared and then shaping said article. The powders when exposed to flame or heat convert to refractory substances. Water from the hydrate is driven off into contact with the cement with the resultant setting of the cement and the production of refractory substances which make the shaped articles non-combustible and self-extinguishing. An outstanding advantage of the compositions of this invention is their ability to eliminate or very extensively reduce the production of smoke by the shape articles on their exposure to flame.
REFERENCES:
patent: 931884 (1909-08-01), McCormick
patent: 2307270 (1943-01-01), Hodge
patent: 3782991 (1974-01-01), Burge
patent: 3972723 (1976-08-01), Balle et al.
Jacobs Lewis T.
Mortenson C. W.
World Chemical Industry, Inc.
LandOfFree
Refractory compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Refractory compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refractory compositions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2335627