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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:
; ; ; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1084087
Patent Number(s):
8466207
Application Number:
11/712,283
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Classifications (CPCs):
C - CHEMISTRY C08 - ORGANIC MACROMOLECULAR COMPOUNDS C08G - MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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}
}

Works referenced in this record:

Thermally stable and high impact resistant structural polyurethane foam
patent, September 1987


Reactive amine catalysts for use in polyurethane polymers
patent, June 2000


Low density energy management urethane foam
patent, February 1980


Energy-attenuating polyurethanes
patent, February 1988


Impact energy-absorbing urethane foam
patent, September 1978


Polyurethane prepolymer compositions, foams made therefrom and methods of making each thereof
patent, October 1999


Polyurethane foam product for an impact absorber
patent, July 1980