Abstract:
Hard surfaces can be treated to improve soil resistance, particularly resistance to oily soils, by applying a composition of a quaternised, polyamine, polypropoxylate, polyethoxylate. The polyamine can be a polyethyleneimme, desirably having a molecular weight of from 10 to 50 kDa. The average length of the polypropylenoxy chains is desirably from 10 to 100 and the polyethylenoxy chains from 5 to 50 (each per NH group in the polyamine), particularly at a molar ratio of PO:EO of about 3:1. The degree of quaternization of the nitrogen atoms in the polyamine is desirably from 70 to 100%. The polymer will usually be used in solution in water or an aqueous formulation, which may include detergent and other detergent formulation components.
Abstract:
Polyethylene glycol esters and amides of polymerised fatty acids are useful dispersing agents for solids, particularly particulate solids, e.g. agrochemicals, oil drilling mud components, pigments, personal care formulants, ceramics, magnetic materials, extenders, fillers, optical brighteners, textile auxiliaries, or soil removed from clothes during cleaning, in aqueous media. Particular such agents are of the formula (I): [Pol]-(COX)m (I), where: Pol is the core residue of a polymerised fatty acid; m is 2 or 3; and each X is: OM; where M is H, a cationic salt forming species or a group -(AO)nR7; or a group —NR8-(AO)nR9; where AO is an alkylene oxide residue; n is from 1 to 100; and R7, R8 and R9 are as defined, from H, an anionic group, alkyl or alkenyl; provided that at least one X is a group of the formula -(AO)nR7 or —NR8-(AO)nR9.
Abstract:
Surfactant compounds which include an amine ended polyalkylene glycol hydrophile linked to C22 to C60 mainly hydrocarbyl, particularly composite hydrocarbyl, especially derived from a polymerised fatty acid and/or an aralkyl substituted phenol, hydrophobe, are useful in dispersing solids, particularly active agrochemicals, in aqueous media, or as adjuvants in agrochemical formulations, particularly of water soluble non-selective herbicides. In particular the hydrophobe is derived from polymerised fatty acids, such as dimer and, especially, trimer acids or from aralkyl substituted phenols. Aqueous dispersions using such surfactants can remain stable even with substantial concentrations of electrolyte e.g. in stable agrochemical dispersions including water soluble electrolyte agrochemical, such as glyphosate and/or ammonium sulphate.
Abstract:
Surfactant compounds which include an amine ended polyalkylene glycol hydrophile linked to C22 to C60 mainly hydrocarbyl, particularly composite hydrocarbyl, especially derived from a polymerised fatty acid and/or an aralkyl substituted phenol, hydrophobe, are useful in dispersing solids, particularly active agrochemicals, in aqueous media, or as adjuvants in agrochemical formulations, particularly of water soluble non-selective herbicides. In particular the hydrophobe is derived from polymerised fatty acids, such as dimer and, especially, trimer acids or from aralkyl substituted phenols. Aqueous dispersions using such surfactants can remain stable even with substantial concentrations of electrolyte e.g. in stable agrochemical dispersions including water soluble electrolyte agrochemical, such as glyphosate and/or ammonium sulphate.
Abstract:
The free radical initiated addition polymerization of ethylenically unsaturated, particularly acrylic monomers in which the dispersed phase is stabilised by a surfactant including at least one anionic surfactant compound of the formula (I): R1—(OA)n—X where R1 is C16 to C22 hydrocarbyl including at least two double bonds; OA is oxyalkylene group; n is from 2 to 60; and X includes at least one acidic H atom, and is particularly a phosphate ester group, or a salt thereof, is described. The use of the surfactants of the formula (I) enable efficient emulsification and thus polymerization at temperatures above those at which non-ionic unsaturated surfactants are effective. The polymer latex products give polymer films having good water resistance properties.
Abstract:
Hard surfaces can be treated to improve soil resistance, particularly resistance to oily soils, by applying a composition of a quaternised, polyamine, polypropoxylate, polyethoxylate. The polyamine can be a polyethyleneimme, desirably having a molecular weight of from 10 to 50 kDa. The average length of the polypropylenoxy chains is desirably from 10 to 100 and the polyethylenoxy chains from 5 to 50 (each per NH group in the polyamine), particularly at a molar ratio of PO:EO of about 3:1. The degree of quaternisation of the nitrogen atoms in the polyamine is desirably from 70 to 100%. The polymer will usually be used in solution in water or an aqueous formulation, which may include detergent and other detergent formulation components.
Abstract:
A compound of the formula R1.[(AO)n.—R2]m (I) where: R1 is the residue of a group having at least m active hydrogen atoms; AO is an alkylene oxide residue; each n is independently from 1 to 100; m is at least 2; and each R2 is independently H, a C1 to C21 hydrocarbyl, or an acyl group —OC.R3, where R3 is a C1 to C21 hydrocarbyl group, wherein on average greater than one of the R2 groups is or comprises a C4 to C21 hydrocarbyl group comprising at least two ethylenic double bonds. The compounds are particularly suitable for use in preparing aqueous emulsions or dispersions of resins and polymers, especially alkyd resins.
Abstract:
A method of making an oil-in-water emulsion is described in which an oil emulsifier and a polysaccharide emulsion stabiliser, which stabiliser comprises a Xanthan polysaccharide and a polyglucomannan polysaccharide, is dispersed in an oil. The oil-based dispersion so formed is then combined with water, preferably at low temperature and under low shear conditions, to form an oil-in-water emulsion. The polysaccharide emulsion stabiliser and optionally oil emulsifier may be dispersed directly into a relatively polar oil to form the oil-based dispersion or, alternatively, into a relatively polar non-aqueous liquid medium, which medium then being mixed with the oil before it is combined with the water to form the emulsion. The oil-in-water emulsions are particularly useful in personal care and cosmetic applications such as sprays, body moisturisers, sun screens and wet wipes for cosmetic or personal hygiene cleaning uses.
Abstract:
Cleaning media based on liquid CO2 and including from 0.01 to 5% by weight of the formulation of a cleaning additive which is at least one C6 to C24 hydrocarbyl ester of a multi-carboxylic acid can be used in dry cleaning of textiles. Desirable cleaning additives are of the formula (I): R1(CO2R2)n where R1 is the residue of a C1 to C10 hydrocarbyl group from which n hydrogen atoms have been removed, R2 is a C6 to C24 hydrocarbyl, particularly alkyl or alkenyl, group; and n is from 2 to 5; particularly C12 to C18 adipate esters.