Accession Number : AD0020716


Title :   LOW-TEMPERATURE LUBRICATING ENGINE OIL ADDITIVES


Descriptive Note : Final rept.


Corporate Author : IIT RESEARCH INST CHICAGO IL


Personal Author(s) : Gavlin, Gilbert ; Swire, Edwin A ; Jones, Sam P , Jr


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/020716.pdf


Report Date : Apr 1953


Pagination or Media Count : 372


Abstract : The structural requirements of pour-point depressants as fixed by studies of acrylic polymers are indicated to be an alkyl side chain length of at least 12 carbons and a degree of polymerization commensurate with suitable over- all physical properties. Polyhexadecylene phthalate was prepared which was capable of lowering the pour point of an untreated MIL-L-6082A AN-)-* 1100 grade oil 30 F. Light microscopical and x-ray diffraction studies of the action of additives on blends of synthetic n-paraffin waxes in dewaxed oil support the theory that pour-point depressants do not enter the crystal lattice but act by means of a surface phenomenon. A review of the literature and an evaluation of commericial additives are given.


Descriptors :   *LUBRICANT ADDITIVES , X RAY DIFFRACTION , ACRYLIC RESINS , OILS , LOW TEMPERATURE LUBRICANTS


Subject Categories : Lubricants and Hydraulic Fluids


Distribution Statement : APPROVED FOR PUBLIC RELEASE