Method for providing a low density high strength polyurethane foam [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2013.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Additional Creators:: Sandia National Laboratories, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Disclosed is a method for making a polyurethane closed-cell foam material exhibiting a bulk density below 4 lbs/ft.sup.3 and high strength. The present embodiment uses the reaction product of a modified MDI and a sucrose/glycerine based polyether polyol resin wherein a small measured quantity of the polyol resin is "pre-reacted" with a larger quantity of the isocyanate in a defined ratio such that when the necessary remaining quantity of the polyol resin is added to the "pre-reacted" resin together with a tertiary amine catalyst and water as a blowing agent, the polymerization proceeds slowly enough to provide a stable foam body.

Report Numbers:

E 1.99:8,466,207
8,466,207

Subject(s):

Materials Science

Note:

Published through SciTech Connect.
06/18/2013.
"8,466,207"
"11/712,283"
Whinnery, Jr., Leroy; Goods, Steven; Skala, Dawn; Henderson, Craig; Keifer, Patrick.

Funding Information:

AC04-94AL85000

View MARC record | catkey: 24065488