| 摘要 |
<p>1533359 Antistatic coating compositions E I DU PONT DE NEMOURS & CO 13 May 1977 [14 May 1976] 20293/77 Heading C3V [Also in Divisions B2 and C5] A coating composition which, when applied on a fibrous monomer sheet of polyolefin and dried provides a sheet having antistatic properties, high water barrier and antislip properties, comprises an aqueous dispersion of: (a) an effective amount of a water-insoluble wax, the wax being dispersable in water at a concentration of 10% by weight based on the total weight of wax and water and requiring for dispersion in water only from 15 to 100% by weight based on the weight of wax of a nonionic surfactant having a hydrophilic-lipophilic balance of from 6 to 10; (b) an effective amount of an antistat which is a compound of formula M n R 3-n PO 4 (wherein M is a lithium, sodium, potassium or ammonium ion, R represents an alkyl group containing from 3 to 5 carbon atoms and n is 1 or 2) or mixtures thereof, (c) from 15 to 100% by weight based on the weight of wax of a nonionic surfactant having a hydrophilic-lipophilic balance of from 6 to 10; and (d) a waterinsoluble binder resin capable of wetting the polyolefin sheet, the binder resin having a glass transition temperature of from 20‹ to 50‹ C. and which, in the form of an aqueous dispersion, does not coagulate in the presence of the antistat and the surfactant; the solids being present in the composition in an amount of from 10 to 40% by weight.</p> |
