Patent GB-1159478-A (GB)
Title: Production of Nonionic Surfactant Compositions
IPC: C11D11/02
Filed: 1966-08-11
Abstract: 1,159,478. Nonionic surfactant composition. UNION CARBIDE CORP. 11 Aug., 1966 [11 Aug., 1965], No. 35955/66. Heading C5D. A composition in the form of an aqueous slurry suitable for spray-drying to produce a dry particulate detergent formulation comprise (a) from 5 to 20 parts by weight of a nonionic surfactant of the formula X-(OC 2 H 4 ) n -OH, wherein X is the hydrophobic residue of a straight chain monohydric alcohol or monohydric ether alcohol formed by removal of the hydroxyl group of the alcohol and n has a value such that the adduct has surface active properties; (b) from 20 to 60 parts by weight of an alkali metal salt of a condensed phosphate; (c) from 5 to 20 parts by weight of an alkali metal silicate; (d) from 0À5 to 5 parts by weight of a soil redeposition inhibitor; (e) a diluent in amount sufficient to provide 100 parts by weight of components (a) to (e) combined; and (f) a smoke-inhibiting amount of one or more of (A), (B) or (C), where (A) is a phenolic compound of the general formula wherein R is hydrogen, hydroxyl, halogen or hydrocarbyl free from non-benzenoid unsaturation of up to 10 carbon atoms; R<SP>1</SP> is hydrogen, alkyl of from 1 to 10 carbon atoms, alkoxy of from 1 to 10 carbon atoms, alkanoyloxy of from 2 to 10 carbon atoms or aryloxy of from 7 to 10 carbon atoms; R<SP>2</SP> is hydrogen, hydroxyl, carboxyl, alkyl of from 1 to 10 carbon atoms, alkoxy of from 1 to 10 carbon atoms, alkexyalkyl of from 2 to 10 carbon atoms, dialkylaminoalkyl of from 3 to 10 carbon atoms, alkoxycarbonyl of from 2 to 15 carbon atoms or a hydrocarbyl, substituted hydrocarbyl, hydrocarbylthio or substituted hydrocarbylthio radical free from non-benzenoid unsaturation containing a hydroxyl-substituted benzene ring and having up to 20 carbon atoms, R<SP>3</SP> is hydrogen, hydroxyl, alkyl of from 1 to 10 carbon atoms, aroyl of up to 10 carbon atoms or a hydrocarbyl, substituted hydrocarbyl, hydrocarbylthio or substituted hydrocarbylthio radical free from non-benzenoid unsaturation containing a hydroxyl-substituted benzene ring and having up to 20 carbon atoms; and R and R<SP>1</SP>, when taken together, form a divalent 1,4-butadienylene radical or a monoalkyl-substituted 1,4-butadienylene radical of up to 15 carbon atoms; (B) is an aromatic amine of the general formula R<SP>17</SP>Ar-NR<SP>18</SP>R<SP>19</SP>, wherein Ar is an aromatic nucleus of up to 10 carbon atoms; R<SP>17</SP> is hydrogen, amino, or mono- or di-substituted amino of up to 15 carbon atoms; R<SP>18</SP> is hydrogen or alkyl of up to 10 carbon atoms; R<SP>19</SP> is hydrogen, hydrocarbyl of up to 10 carbon atoms free from non-benzenoid unsaturation or arylaminoalkyl wherein the aryl group is phenyl or naphthyl and the alkyl group contains 2 or 3 carbon atoms; and R<SP>17</SP> and R<SP>18</SP>, when taken together, form a divalent radical which, when taken together with - ArNR<SP>19</SP>, forms a 5- or 6-membered fused ring bonded to Ar through adjacent carbon atoms; and (C) is a condensation product of (i) an aromatic amine which is aniline, α-napthylamine; diphenylamine or N-phenylnaphthylamine and (ii) a carbonyl compound which is aldol, acetaldehyde, butyraldehyde or acetone. The amount of (A), (B) or (C) is from 100 parts per million to one per cent, preferably from 500 to 5,000 parts per million, based on the weight of the detergent. The usual common additives may also be employed in the composition, which is sprayed as an aqueous slurry in a heated gas stream at a temperature from 200‹ to 750‹ F.