Velsicol Chemical Corporation

Great Lakes Chemical Corporation

Veesicol Chemical Corporation

Jayendra G Shukla

Ray E Smith

Richard R Nicholson

Kenneth J Sienkowski

An intumescent composition containing a cyclic nitrogen compound, a hydroxy-containing organo-phosphorus compound, an organo-phosphorus acid, and water, wherein:

Novel intumescent composition and flame retardant articles treated

A compound of the formula ##STR1## wherein a, b, c, d, and n are integers; a is from 1 to 3; b and c are independently selected from the group consisting of 0 and 1; d and n are independently selected from the group consisting of 1 and 2; R.sup.1 and R.sup.4 are independently selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and haloalkyl of 1 to 4 carbon atoms and 1 to 2 halogen atoms; and R.sup.2 and R.sup.3 are independently selected from the group consisting of haloalkyl containing 1 to about 4 carbon atoms and 1 to about 2 halogen atoms selected from the group consisting of chlorine, bromine, and mixtures thereof. The use of this compound with specified amounts of a certain methylated methylol melamine and water allows one to produce an intumescent composition which is substantially superior to prior art intumescent compositions.

Intumescent composition

Novel phosphoric acid

Disclosed is a flame retardant article comprised of an article treated with a flame-retardingly effective amount of an intumescent composition comprising a cyclic nitrogen compound, a phosphorous polyol, a phosphorous acid and water.

Flame retardant article

There is provided an intumescent composition comprising a cyclic nitrogen compound, a phosphorus polyol, a phosphorus acid, and water.

Novel intumescent composition

2,2-Bis(haloalkyl)-3-hydroxy-1-propyl phosphoric acids

An intumescent composition comprising a cyclic nitrogen compound, an acid selected from the group consisting of phosphorous acid, phosphoric acid, and mixtures thereof, water, and an hydroxy-containing organo-phosphorus compound, wherein:

Intumescent composition comprising cyclic nitrogen compound and

An intumescent composition comprising a hydroxyalkyl amino alkyl phosphonic acid, a cyclic nitrogen compound, and water, wherein said phosphonic acid is selected from the group consisting of ##STR1## wherein x, y, and n are integers independently selected from the group consisting of 1 and 2, q is an integer selected from the group consisting of 1, 2, and 3, z is an integer selected from the group consisting of 0 and 1, R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, alkyl radicals containing from about 1 to about 6 carbon atoms, and haloalkyl radicals containing from about 1 to about 6 carbon atoms, and R.sup.3 is selected from the group consisting of alkyl radicals containing from about 1 to about 6 carbon atoms and haloalkyl radicals containing from about 3 to about 6 carbon atoms, provided that the total number of carbon atoms in the R.sup.1, R.sup.2, and R.sup.3 groups does not exceed about 14; and wherein said cyclic nitrogen compound is ##STR2## wherein a, b, and c are integers selected from the group consisting of 1 and 2, a plus b plus c equal about 3 to 6, and X, X', and X' are independently selected from the group consisting of hydrogen and --CH.sub.3.

There is provided a flame-retarded non-woven material which contains a mixture of flame retardant and vinyl chloride latex, wherein said flame retardant is selected from the group consisting of ##STR1## wherein a and b are integers independently selected from the group consisting of 1, 2, 3, 4 and 5, a plus b is from about 6 to about 10, c is an integer of from 1 to 4, and alkylene is a straight chain carbon group having from one to six carbon atoms; and wherein more than 50 percent (by weight) of said flame retardant consists of particles with a diameter of from about 2 to about 25 microns.

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Ann Arbor, MI, United States of America

Jayendra G Shukla