IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0461087
(1995-06-05)
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발명자
/ 주소 |
- Unger Peter D. (Convent Station NJ) Rohrbach Ronald P. (Flemington NJ)
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| 출원인 / 주소 |
- AlliedSignal Inc. (Morris Township NJ 02)
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| 인용정보 |
피인용 횟수 :
67 인용 특허 :
0 |
초록
▼
A process for making a crosslinked, highly porous body derived from a water-soluble, hydrogel polymer, wherein the porous body is characterized in that it has an open-celled 3-dimensional lattice structure, a density of less than about 1.0 g/cm3, a surface area of equal to or greater than about 30 m
A process for making a crosslinked, highly porous body derived from a water-soluble, hydrogel polymer, wherein the porous body is characterized in that it has an open-celled 3-dimensional lattice structure, a density of less than about 1.0 g/cm3, a surface area of equal to or greater than about 30 m2/g, and a compression strength of equal to or less than about 75% yield at 300 psi.
대표청구항
▼
A process for making a crosslinked, highly porous body comprising the steps of: a) dissolving a hydrogel polymer in a gelling solvent, said hydrogel polymer selected from the group consisting of alginates, gums, starch, dextrins, agar, gelatins, casein, collagen, polyvinyl alcohol, polyethylenimine,
A process for making a crosslinked, highly porous body comprising the steps of: a) dissolving a hydrogel polymer in a gelling solvent, said hydrogel polymer selected from the group consisting of alginates, gums, starch, dextrins, agar, gelatins, casein, collagen, polyvinyl alcohol, polyethylenimine, acrylate polymers, starch/acrylate copolymers, and mixtures and copolymers thereof, b) forming a gel from the dissolved polymer solution into a desired configuration, c) gradually replacing said gelling solvent with a crosslinking solvent by employing a concentration gradient solvent exchange process, d) adding a crosslinking agent to crosslink said gel, and e) isolating the crosslinked gel from said crosslinking solvent, wherein said porous body is characterized in that it has an open-celled 3-dimensional lattice structure, a density of less than about 1.0 g/cm3, a surface area of equal to or greater than about 30 m2/g, and a compression strength of equal to or less than about 75% yield at 300 psi.
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