Urethane foams from animal fats: V. Flame resistant foams from hypohalogenated glycerides View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1970-05

AUTHORS

F. Scholnick, E. J. Saggese, A. N. Wrigley, G. R. Riser

ABSTRACT

A series of urethane foams has been prepared using hypohalogenated derivatives of triolein, monoolein, lard and tallow as the polyol ingredient. Two-step hypohalogenation was achieved by epoxidation of the glyceride, followed by treatment with HX. One step hypohalogenation was effected by direct addition of hypochlorous acid (from calcium hypochlorite) or hypobromous acid (from N-bromoacetamide). The polyols, which varied from viscous liquids to semi-solids, were adjusted in equivalent weight with triisopropanolamine. Urethane foams were prepared from the adjusted polyols using polymeric polyisocyanate as the isocyanate, triethylene diamine catalyst and Freon 11 as blowing agent. Additional foams were made with 2% antimony oxide as an added fire retardant. Rigid foams were obtained from each glyceride polyol. Fire retardant properties were measured using a modification of ASTM Method D1692-59T. In each case, the foams exhibited greater flammability resistance than those obtained from polyols containing no halogen atoms. It was noted that the presence of antimony oxide was necessary in order to attain nonburning foams but was accompanied by a lowering of compressive strength. More... »

PAGES

180-182

References to SciGraph publications

  • 1965-06. Urethane foams from animal fats I. Oxyethylated 9, 10-dihydroxystearic acid in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1967-01. Urethane foams from animal fats. III. Oxypropylated dihydroxystearic acids in rigid foams in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1967-01. Urethane foams from animal fats. II. Reaction of propylene oxide with fatty acids in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
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    http://scigraph.springernature.com/pub.10.1007/bf02638748

    DOI

    http://dx.doi.org/10.1007/bf02638748

    DIMENSIONS

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