LOW VAPOR PRESSURE ISOCYANATES FOR HIGH RESILIENT URETHANE FOAM

A flexible urethane foam has been developed for automotive seating uses which avoids use of toluene diisocyanate (TDI), a respiratory toxin. A polymeric isocyanate at 100 index with a triol mixture at 2.6 pph water without fluorocarbon and fixed catalysts/surfactant provided the best balance of properties for the material. Tear strength in these parts tended to be almost as high as the high water, high index parts. At lower water levels and indices, a significant softening of the foam was seen in 65% indentation load deflection values. The compression sets were not significantly affected by water level. Without fluorocarbon, however, the density and hardness remain higher than current foams made with TDI.

• Supplemental Notes:
  • Presented at the SAE Congress and Exposition, Detroit, 27 February-3 March 1978.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Davis, C C
  • Zimmerman, P M
• Publication Date: 1978

Media Info

• Features: References;
• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Automobiles; Seats; Strength of materials; Urethane
• Uncontrolled Terms: Fluorocarbons
• Subject Areas: Safety and Human Factors;

Filing Info

• Accession Number: 00395651
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: SAE 780324, HS-025 421U
• Files: HSL, USDOT
• Created Date: Jun 30 1985 12:00AM