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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. 1 fig.

Inventors:
Issue Date:
OSTI Identifier:
7180282
Patent Number(s):
5360828 A
Application Number:
PPN: US 8-215159
Assignee:
Univ. of California, Oakland, CA (United States) PTO; EDB-94-167950
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Patent File Date: 21 Mar 1994
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; FABRICATION; TENSILE PROPERTIES; THERMODYNAMIC PROPERTIES; FOAMS; THERMAL INSULATION; COLLOIDS; DISPERSIONS; MATERIALS; MECHANICAL PROPERTIES; PHYSICAL PROPERTIES; 360606* - Other Materials- Physical Properties- (1992-); 360601 - Other Materials- Preparation & Manufacture; 360603 - Materials- Properties

Citation Formats

Morrison, R.L. Biofoam II. United States: N. p., 1994. Web.
Morrison, R.L. Biofoam II. United States.
Morrison, R.L. Tue . "Biofoam II". United States.
@article{osti_7180282,
title = {Biofoam II},
author = {Morrison, R.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. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {11}
}