Abstract:
Carbamido alkyl phosphinic acid alkyl esters are obtained by reacting alkyl phosphonic acid mono alkyl esters with amides of unsaturated carboxylic acids. The products are useful as insecticides and as additives for plastics which render said plastics flame retardant.
Abstract:
FIBROUS MATERIALS ESSENTIALLY CONSISTING OF MIXTURE OF POLYESTERS AND CELLULOSE ARE RENDERED FIRE-PROOF BY TREATMENT WITH THE AMMONIUM SALT OF BIS-(HYDROXYMETHYL)PHOSPHINIC ACID. THIS TREATMENT IMPROVES, FURTHERMORE, THE SOFT HANDLE OF THE GOODS.
Abstract:
Detergent mixtures comprising a) an alkylsulfonic acid deriving from a light petrol and containing a sulfonic acid group per 7 carbon atoms at most, b) a low-molecular oxalkylation product of a lower alkyl amine and c) a phosphate of alkanols of 4 to 8 carbon atoms are useful as wetting agents for alkaline baths.
Abstract:
CELLULOSE FIBER MATERIASL ARE RENDERED FLAME PROOF AND FAST TO WASHING BY (A) IMPREGNATION WITH AQUEOUS BATH CONTAINING PHOSPHORIC ACID ESTERS WITH N-METHYLOL GROUPS AND, OPTIONALLY, AMINOPLAST PRECONDENSATES AND/OR AMINOPLAST CONDENSATION CATALYSTS, AND (B) SUBSEQUENT HEAT TREATMENT.
Abstract:
A process is provided for the catalytic preparation of tertiary methylphosphine oxides which comprises mixing hydroxymethylalkylphosphines with at least 1 weight % of carbon tetrachloride or carbon tetrabromide at a temperature of from -10* to +120*C, and, after the reaction is complete, isolating the tertiary methylphosphine oxide by distilling off the carbon tetrahalide.
Abstract:
A process is provided for the catalytic preparation of bis(hydroxymethyl)-methylphosphine oxide, which comprises mixing tris-(hydroxymethyl)-phosphine with at least 1 weight % of carbon tetrachloride or carbon tetrabromide at temperatures of from 10* to +120*C, and, after completed reaction, isolating the bis(hydroxymethyl)-methylphosphine oxide so obtained by distilling off the carbon tetrahalide.
Abstract:
A process is provided for the catalytic preparation of tertiary methylphosphine oxides, which comprises mixing hydrohydroxymethyl-alkylphosphines with at least 1 weight % of a carbon tetrahalide of the formula C(Hal1)(Hal2)(Hal3), Hal4, where Hal1 is fluorine, chlorine or bromine, and Hal2, Hal3 and Hal4 each is chlorine or bromine, only three of the radicals Hal1 to Hal4 being the same at temperatures of from -10* to +120*C and, after completed reaction, isolating the methylphosphine oxide of formula (I) so obtained by distilling off the carbon tetrahalide.
Abstract:
Production of tertiary methylphosphine oxides of the general formula (I) in which R and R' each stand for identical or different, alkyl groups other than a hydroxymethl group, having from 1 to 6 carbon atoms. The compounds are produced by subjecting tertiary hydroxymethylphosphines of the general formula (II) in which R and R1 have the meanings given above, to a thermal rearrangement reaction at temperatures higher than about 90.degree.C or, in the presence of BF3.etherate as catalyst, at temperatures within the range -10 and.250.degree.C.
Abstract:
1364700 Derivatives of urethanoalkyl phosphonic acid esters FARBWERKE HOECHST AG 25 Aug 1971 [29 Aug 1970] 39846/71 Addition to 1311906 Heading C2P [Also in Division D1] Novel compounds of the general formula wherein each of R, R 1 and R 11 are alkyl, preferably C 1 -C 4 alkyl, and Y is H or a methylol group, are obtained by reacting a compound of the formula with formaldehyde. The products are useful as flame-proofing agents for cellulosic fibrous materials. The compounds (II) may be obtained by reacting a compound with phosgene to form and then treating the latter with ammonia, or by reacting III with chlorosulphonyl isocyanate and then hydrolysing the main reaction product.