Polyolefin Compositions with Durable Hydrophilic Properties
Publication Date: 2003-May-20
The IP.com Prior Art Database
Certain ethoxylated aliphatic alcohols provide durable hydrophilic effects to polyolefin compositions. The ethoxylated aliphatic alcohol additives can be incorporated into the polyolefin in the melt, for example via melt extrusion. Alternatively, the additives may be topically applied. The incorporation of the additives of the disclosure and optional further components into the polymer can also be carried out by other known methods such as wet mixing in the form of solutions, dispersions or suspensions for example in an inert solvent, water or oil. The additives of the disclosure and optional further additives may also be incorporated, for example, before or after extrusion process or by applying the dissolved or dispersed additive or additive mixture to the polymer material, with or without subsequent evaporation of the solvent or the suspension/dispersion agent such as fiber finish or topical treatment processes. Provided are not only durable hydrophilic properties, but also antistat, antidust, antifriction, antifog, dyeability and printability properties. The ethoxylated aliphatic alcohols are for example of the formula R1(OCH2CH2)xOH where x is 2, 3, 4, 5, 6, 7, 8, 9 or 10 and R1 is for example a straight or branched chain alkyl of 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39 or 40 carbon atoms. The polyolefin compositions may also advantageously comprise other commercial ethoxylated aliphatic alcohols such as Atmer® 502, a 2 mole ethoxylated stearyl alcohol, C18H37(OCH2CH2)2OH, CAS #9005-00-9. Atmer® is a trademark of Uniqema.