skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Biofoam II

Abstract

Biofoam is a rigid, microcellular organic foam made from organic materials derived from natural products and biological organisms. Starting materials include agar, agarose, gelatin, algin, alginates, gellan gum, and microcrystalline cellulose. The organic material is dissolved in a polar solvent, typically water, and the mixture is gelled. The water in the gel pores is replaced at least once with another solvent to reduce the pore size of the final biofoam. The solvent in the gel pores may be replaced several times. After the final replacement of solvent, the gel is frozen and freeze-dried to form a biofoam. Translucent biofoams are formed by selecting a final solvent that forms very small crystals. A variety of crystalline, fibrous, amorphous, or metallic additives may be incorporated into the foam structure to produce lightweight composite materials with enhanced strength and insulating properties.

Inventors:
 [1]
  1. (Modesto, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
869588
Patent Number(s):
5360828
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
biofoam; ii; rigid; microcellular; organic; foam; materials; derived; natural; products; biological; organisms; starting; agar; agarose; gelatin; algin; alginates; gellan; gum; microcrystalline; cellulose; material; dissolved; polar; solvent; typically; water; mixture; gelled; pores; replaced; reduce; pore; size; final; times; replacement; frozen; freeze-dried; form; translucent; biofoams; formed; selecting; forms; crystals; variety; crystalline; fibrous; amorphous; metallic; additives; incorporated; structure; produce; lightweight; composite; enhanced; strength; insulating; properties; materials derived; crystalline cellulose; polar solvent; starting material; composite materials; organic materials; pore size; composite material; starting materials; organic material; organic foam; typically water; insulating properties; microcrystalline cellulose; microcellular organic; composite mat; natural products; enhanced strength; foam structure; gellan gum; omposite materials; produce light; biological organisms; /521/106/

Citation Formats

Morrison, Robert L. Biofoam II. United States: N. p., 1994. Web.
Morrison, Robert L. Biofoam II. United States.
Morrison, Robert L. Sat . "Biofoam II". United States. https://www.osti.gov/servlets/purl/869588.
@article{osti_869588,
title = {Biofoam II},
author = {Morrison, Robert L.},
abstractNote = {Biofoam is a rigid, microcellular organic foam made from organic materials derived from natural products and biological organisms. Starting materials include agar, agarose, gelatin, algin, alginates, gellan gum, and microcrystalline cellulose. The organic material is dissolved in a polar solvent, typically water, and the mixture is gelled. The water in the gel pores is replaced at least once with another solvent to reduce the pore size of the final biofoam. The solvent in the gel pores may be replaced several times. After the final replacement of solvent, the gel is frozen and freeze-dried to form a biofoam. Translucent biofoams are formed by selecting a final solvent that forms very small crystals. A variety of crystalline, fibrous, amorphous, or metallic additives may be incorporated into the foam structure to produce lightweight composite materials with enhanced strength and insulating properties.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Patent:

Save / Share: