US 6,635,684 B2 · Method for preparing hydrophilic porous polymeric materials

Abstract

The present invention discloses a method for preparing a hydrophilic porous polymeric material comprising the step of mixing a hydrophilic polymeric material with a hydrophobic material; solvent sintering the surface of the hydrophilic polymeric material with water or an aqueous solution; and removing the hydrophobic material contained within the hydrophilic polymeric material with a massive organic solvent. Thus, the hydrophilic porous polymeric material with high porosity and stable structure is rapidly mass produced.

Claims22

Dependent claims

A method for preparing a hydrophilic porous polymeric material comprising the following steps:

(a) mixing a hydrophilic polymeric material with a hydrophobic material;
(b) solvent sintering the surface of the hydrophilic polymeric material by adding water or an aqueous solution;
and
(c) removing the hydrophobic material with an organic solvent, which can dissolve the hydrophobic material, and solidifying the sintered hydrophilic polymeric material.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

10/083,242Filed 19 Oct 2001

Priority

TW 89127372 A20 Dec 2000

Published

US 2002/0086977 A14 Jul 2002

Granted

21 Oct 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

C08L 5/08
Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00: chitin; Chondroitin sulfate; Hyaluronic…
C07K 17/08
Peptides being immobilised on, or in, an organic carrier: the carrier being a synthetic polymer
C08B 37/003
2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof: chitin, i.e. 2-acetamido-2-deoxy--D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan,…
C08H 1/06
Macromolecular products derived from proteins: derived from horn, hoofs, hair, skin or leather

Method for preparing hydrophilic porous polymeric materials

Life of this patent

Method for preparing hydrophilic porous polymeric materials

Life of this patent

Abstract

Claims22