C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/06 (2006.01) C08L 23/08 (2006.01) C08L 33/02 (2006.01)
Patent
CA 2246546
Ionomer and their precursor olefin/unsaturated acid copolymers are rendered antistatic by the inclusion of alcohol polyalkoxylate(s), particularly ethoxylates or ethoxylate/propoxylates. Especially useful alcohol polyalkoxylates are of the formula (I): R1.(OA)n.OR1 where R1 is C6 to C22 alkyl or alkenyl; R2 is hydroxyl; OA is oxyalkylene, preferably oxyethylene, oxypropylene or a combination of oxyethylene and oxypropylene; and n is from 2 to 50. The antistatic effect is good even in the presence of slip agents such as fatty acid amides.
On rend antistatiques les ionomères et leurs copolymères oléfine/acide insaturé précurseurs, par inclusion d'un ou plusieurs polyalcoxylates d'alcool, et notamment d'éthoxylates ou d'éthoxylate/propoxylates. Les polyalcoxylates d'alcool tout particulièrement intéressants répondent à la formule (I): R?1¿.(OA)¿n?.OR?1¿, dans laquelle R?1¿ représente alcényle ou alkyle C¿6-22?; R?2¿ représente hydroxyle; OA représente oxyalkylène, de préférence oxyéthylène et/ou oxypropylène; et n est compris entre 2 et 50. L'effet antistatique est satisfaisant même en présence d'agents glissants tels que des amides d'acide gras.
Gowling Lafleur Henderson Llp
Imperial Chemical Industries Plc
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