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Title: Method for providing a low density high strength polyurethane foam

Abstract

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.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
SNL-A (Sandia National Laboratories, Albuquerque, NM (United States))
Sponsoring Org.:
USDOE
OSTI Identifier:
1084087
Patent Number(s):
8,466,207
Application Number:
11/712,283
Assignee:
Sandia Corporation (Albuquerque, NM) SNL-A
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Whinnery, Jr., Leroy L., Goods, Steven H., Skala, Dawn M., Henderson, Craig C., and Keifer, Patrick N. Method for providing a low density high strength polyurethane foam. United States: N. p., 2013. Web.
Whinnery, Jr., Leroy L., Goods, Steven H., Skala, Dawn M., Henderson, Craig C., & Keifer, Patrick N. Method for providing a low density high strength polyurethane foam. United States.
Whinnery, Jr., Leroy L., Goods, Steven H., Skala, Dawn M., Henderson, Craig C., and Keifer, Patrick N. Tue . "Method for providing a low density high strength polyurethane foam". United States. https://www.osti.gov/servlets/purl/1084087.
@article{osti_1084087,
title = {Method for providing a low density high strength polyurethane foam},
author = {Whinnery, Jr., Leroy L. and Goods, Steven H. and Skala, Dawn M. and Henderson, Craig C. and Keifer, Patrick N.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {6}
}

Patent:

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