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Title: Method for epoxy foam production using a liquid anhydride

Abstract

An epoxy resin mixture with at least one epoxy resin of between approximately 50 wt % and 100 wt %, an anhydride cure agent of between approximately 0 wt % and approximately 50 wt %, a tert-butoxycarbonyl anhydride foaming agent of between proximately 0.1-20 wt %, a surfactant and an imidazole or similar catalyst of less than approximately 2 wt %, where the resin mixture is formed from at least one epoxy resin with a 1-10 wt % tert-butoxycarbonyl anhydride compound and an imidazole catalyst at a temperature sufficient to keep the resin in a suitable viscosity range, the resin mixture reacting to form a foaming resin which in the presence of an epoxy curative can then be cured at a temperature greater than 50.degree. C. to form an epoxy foam.

Inventors:
 [1]
  1. Albuquerque, NM
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
1055723
Patent Number(s):
8,193,256
Application Number:
12/555,251
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Celina, Mathias. Method for epoxy foam production using a liquid anhydride. United States: N. p., 2012. Web.
Celina, Mathias. Method for epoxy foam production using a liquid anhydride. United States.
Celina, Mathias. 2012. "Method for epoxy foam production using a liquid anhydride". United States. doi:. https://www.osti.gov/servlets/purl/1055723.
@article{osti_1055723,
title = {Method for epoxy foam production using a liquid anhydride},
author = {Celina, Mathias},
abstractNote = {An epoxy resin mixture with at least one epoxy resin of between approximately 50 wt % and 100 wt %, an anhydride cure agent of between approximately 0 wt % and approximately 50 wt %, a tert-butoxycarbonyl anhydride foaming agent of between proximately 0.1-20 wt %, a surfactant and an imidazole or similar catalyst of less than approximately 2 wt %, where the resin mixture is formed from at least one epoxy resin with a 1-10 wt % tert-butoxycarbonyl anhydride compound and an imidazole catalyst at a temperature sufficient to keep the resin in a suitable viscosity range, the resin mixture reacting to form a foaming resin which in the presence of an epoxy curative can then be cured at a temperature greater than 50.degree. C. to form an epoxy foam.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2012,
month = 6
}

Patent:

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