LOW-TEMPERATURE LUBRICATING ENGINE OIL ADDITIVES

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.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1953
Accession Number
AD0020716

Entities

People

  • Edwin A. Swire
  • Gilbert Gavlin
  • Sam P. Jones Jr.

Organizations

  • IIT Research Institute

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alkanes
  • Alkenes
  • Chemical Synthesis
  • Chemistry
  • Crystal Structure
  • Indexes
  • Materials
  • Materials Laboratories
  • Oils
  • Organic Chemistry

Readers

  • Organic Chemistry
  • Petroleum Engineering
  • Systems Analysis and Design