| 摘要 |
Concentrated liquid and solid lubricating compositions having superior compatibility with synthetic polymeric packaging materials, such as polyethylene terephthalate (PET), linear high density polyethylene (LHDPE), polystyrene, polymeric coated papers, and the like, can include 1 to 50 wt% of a fatty acid diamine salt having the formula ((R1)(R2)N(R5)NH(R3)(R4)!+(R6COO)- or ¢(R1)(R2)NH(R5)NH(R3)(R4)!++(R6COO)2wherein R1 is a C10-18 aliphatic group; R2, R3, and R4 are independently hydrogen or an alkoxy group containing one to five alkylene oxide units; R5 is a C1-5 alkylene group; and R6 is a C10-18 aliphatic group. The lubricating compositions are particularly useful on the load bearing surfaces of conveyor belts used in the bottling of carbonated beverages in polyethylene terephthalate bottles.
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