C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
6/14, 403/9
C09D 5/18 (2006.01) C07D 251/70 (2006.01) C09K 21/10 (2006.01) C09K 21/12 (2006.01) D06M 15/673 (2006.01)
Patent
CA 1112402
ABSTRACT There is provided a process for preparing an intumescent com- position comprising a cyclic nitrogen compound, an acid selected from the group consisting of phosphorous acid, phosphoric acid, and mixtures thereof, water, and a hydroxy-containing organo-phosphorus compound, wherein: a. said cyclic nitrogen compound is Image wherein a, b, and c are the integers 1 or 2, a plus b plus c equals from 3 to 6, and X, X', and X" are hydrogen or -CH3; b. said hydroxy-containing organo-phosphorus compound is selected from the group consisting of Image and Image and mixtures thereof, wherein d is an integer of from 0 to 2, e is an integer of from 0 to 2, f is an integer of from 1 to 3, and d plus e plus f equals 3, z is an integer of 0 to 1; x is an integer of 1 to 2, y is an integer of 1 to 2, and x plus y plus z equals 3; R1, R2, and R3 are alkyl radicals containing from 1 to 6 carbon atoms or haloalkyl radicals containing from 2 to 6 carbon atoms, provided that when R3 is haloalkyl it contains at least 3 carbon atoms; R4 and R5 are hydrogen, alkyl radicals, or haloalkyl radicals, wherein said radicals contain from l to 6 carbon atoms; and the total number of carbon atoms in the R1, R2, R3, R4, and R5 groups does not exceed about 14.
333825
Nicholson Richard R.
Shukla Jayendra G.
Smith Ray E.
Macrae & Co.
Velsicol Chemical Corporation
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