Solvent-blown rigid urethane foams from castor-based polyols View Full Text


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Article Info

DATE

1961-05

AUTHORS

C. K. Lyon, Vilma H. Garrett, Leo A. Goldblatt

ABSTRACT

The preparation of trichlorofluoromethane-blown rigid urethane foams using toluenediisocyanate and castor oil-derived polyols was investigated. The castor-based polyols included castor oil, hydroxylated castor oil, technical glycerol-, penta-erythritol-, and sorbitol monoricinoleates, and N,N-bis(2-hydroxyethyl) ricinoleamide.The last of these yielded the best foams when used as the sole polyol component added to the prepolymer. However better foams were obtained by using, as the polyol component, a mixture of a castor oil-derived polyol and a lower-molecular-weight polyol with a higher hydroxyl content. These polyol mixtures yielded more highly cross-linked polymers and hence foams with higher compressive strengths and less tendency to shrink after foaming.The effect of catalyst, silicone surfactant, and trichlorofluoromethane content was also investigated. An empirical relationship between density and compressive strength in a given foam system was derived. More... »

PAGES

262-266

References to SciGraph publications

  • 1959-04. Castor polyols for urethane foams in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1959-01. Preparations and properties of castor oil urethane foams in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1959-11. The preparation and properties of some urethane foams from castor oil and elaidinized castor oil in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf02636773

    DOI

    http://dx.doi.org/10.1007/bf02636773

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1012910741


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