| 摘要 |
<p>Surfactant compositions including end-capped hydrocarbyl polyalkoxylate and/or fatty acid polyalkoxylate and organopolysiloxane having one or more polyoxyalkylene side chains are good immediate and long term spreaders particularly on fibrous hydrophobic synthetic polymeric substrates such as spun-bonded, non-woven materials made e.g. form polyolefins, especially polypropylene, or PET. Particularly useful alkoxylates are of one of the formulae (Ia to Id): R?1O.(AO1)¿n.R2 (Ia); R3.CO2.(AO1)n.R2 (Ib); R14O.[EOi.POj].R15 (Ic); or R?14O.(AO2)¿k.(AO3)l.(AO2)m.R15 (Id), where the various substituents and indices have defined meanings and useful silicones include those of the formula (II): R43SiO.[R42SiO]x.{(R?4Si[(O.R5.(AO2)¿m.R6]O}y.SiR43, where the various substituents and indices have defined meanings. Usually the coating compositions will include specific active materials particularly lubricants especially alkoxylate lubricants. The compositions are water compatible (dispersible or soluble) and primarily biodegradable. The coated substrates find application as carpet backing and geotextiles. In carpet backing, the water compatibility of the compositions makes it possible to avoid tip frosting of carpet on subsequent dyeing.</p> |
