| abstract |
Use of a compound of general formula (1) as a slip agent in a PET polymer, wherein: R and R1 represent hydrocarbon moieties, each hydrocarbon moiety comprising 6 to 24 carbon atoms and wherein R and/or R1 may be linear, branched chain, saturated or contain one or more double a bonds; X represents one of the moieties (a), wherein A represents a hydrocarbon moiety comprising 2 to 36 carbon atoms and may be linear, branched chain, saturated or contain one or more double bonds. |