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Urethane foams from animal fats I. Oxyethylated 9, 10‐dihydroxystearic acid
Author(s) -
Saggese E. J.,
Zubillaga Marta,
Wrigley A. N.,
Ault W. C.
Publication year - 1965
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02540102
Subject(s) - prepolymer , polyol , ethylene oxide , polyurethane , mixing (physics) , viscosity , isocyanate , oxide , polymer chemistry , materials science , chemistry , organic chemistry , composite material , polymer , copolymer , physics , quantum mechanics
Abstract Threo ‐ and erythro ‐9,10‐dihydroxystearic acids were reacted with 2, 4, 6 and 8 moles of ethylene oxide. The oxyethylated polyols from the threo acid, adjusted to equivalent weight 100 with triisopropanolamine, were converted to satisfactory rigid foams by mixing with corresponding amts of isocyanate‐terminated oxypropylated sorbitol prepolymers of three viscosities. Typical foam properties had maxima for the tetra‐ or hexaoxyethylene polyol, and most properties paralleled prepolymer viscosity.