Fire retardant powders and methods
OwnerGlenn A. Pearsoninventor
Life of this patent
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Abstract
Fire retardant compositions in the form of a powder are produced from the following components: ______________________________________ Component Parts by Weight ______________________________________ Aldehyde 70-140 Ammonium phosphate 50-250 Ammonium, alkali metal or 50-250 alkaline earth metal compound or salt Urea reactant 70-190 Hydroxy reactant 20-60 Phosphoric acid 150-250 ______________________________________ Also provided are retardant compositions containing the powder and methods for treating substrates, such as paper or wood, as well as cotton, wool, and synthetic textiles to impart fire retardant properties thereto.
Claims24
An article of manufacture comprising a substrate coated with a fire retardant composition comprising a powder resin which is the reaction product of the following components:
- (a) about 70-140 parts by weight of an aldehyde, (b) about 50-250 parts by weight of an ammonium phosphate, (c) about 50-250 parts by weight of ammonium, alkali metal or alkaline earth metal compound or salt, (d) about 70-190 parts by weight of a urea reactant, (e) about 20-60 parts by weight of hydroxy reactant, and (f) about 150-250 parts by weight of phosphoric acid, components (a), (b), (c), (d), and (e) having been mixed together and heated at temperatures of about 160.degree.-200.degree. F., the phosphoric acid then being added to the mixture of the other components.
An article of manufacture comprising a substrate coated with a fire retardant powder composition comprising about 243 parts of 37 percent formaldehyde, about 100 parts of diammonium phosphate about 100 parts of ammonium sulfate, about 100 parts of urea, about 30 parts of ethylene glycol, and about 200 parts of 85 percent phosphoric acid, the phosphoric acid being added to a mixture of the other ingredients.
A fire retardant plastic composition, said plastic composition containing as a filler a fire retarding amount of a powder resin which is the reaction product of the following components:
- (a) about 70-140 parts by weight of an aldehyde, (b) about 50-250 parts by weight of an ammonium phosphate, (c) about 50-250 parts by weight of ammonium, alkali metal or alkaline earth metal compound or salt, (d) about 70-190 parts by weight of a urea reactant, (e) about 20-60 parts by weight of hydroxy reactant, and (f) about 150-250 parts by weight of phosphoric acid, components (a), (b), (c), (d), and (e) having been mixed together and heated at temperatures of about 160.degree.-200.degree. F., the phosphoric acid then being added to the mixture of the other components.
A paper composition, said paper composition containing as a filler a fire retarding amount of a powder resin which is the reaction product of the following components:
- (a) about 70-140 parts by weight of an aldehyde, (b) about 50-250 parts by weight of an ammonium phosphate, (c) about 50-250 parts by weight of ammonium, alkali metal or alkaline earth metal compound or salt, (d) about 70-190 parts by weight of a urea reactant, (e) about 20-60 parts by weight of hydroxy reactant, and (f) about 150-250 parts by weight of phosphoric acid, components (a), (b), (c), (d), and (e) having been mixed together and heated at temperatures of about 160.degree.-200.degree. F., the phosphoric acid then being added to the mixture of the other components.
A paint composition, said paint composition containing as a filler a fire retarding amount of a powder resin which is the reaction product of the following comonents:
- (a) about 70-140 parts by weight of an aldehyde, (b) about 50-250 parts by weight of an ammonium phosphate, (c) about 50-250 parts by weight of ammonium, alkali metal or alkaline earth metal compound or salt, (d) about 70-190 parts by weight of a urea reactant, (e) about 20-60 parts by weight of hydroxy reactant, and (f) about 150-250 parts by weight of phosphoric acid, components (a), (b), (c), (d), and (e) having been mixed together and heated at temperatures of about 160.degree.-200.degree. F., the phosphoric acid then being added to the mixture of the other components.
An article of manufacture comprising cotton or wool containing a fire retarding amount of a fire retardant powder, said powder being contained on the yarns or threads of the cotton or wool, said fire retardant powder being a resin powder which is the reaction product of the following components:
- (a) about 70-140 parts by weight of an aldehyde, (b) about 50-250 parts by weight of an ammonium phosphate, (c) about 50-250 parts by weight of ammonium, alkali metal or alkaline earth metal compound or salt, (d) about 70-190 parts by weight of a urea reactant, (e) about 20-60 parts by weight of hydroxy reactant, and (f) about 150-250 parts by weight of phosphoric acid, components (a), (b), (c), (d), and (e) having been mixed together and heated at temperatures of about 160.degree.-200.degree. F., the phosphoric acid then being added to the mixture of the other components.
Dependencies are inferred from the claim text.