The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2002
Filed:
Jun. 11, 1999
Jerker Porath, S-756 45 Uppsala, SE;
Bo Ersson, S-757 57 Uppsala, SE;
Other;
Abstract
A hydrogel product for adsorption wherein water non-soluble support matrix is cross-linked with polymers which give rise to a water swellable adsorbent. As support matrix an organic polymer or a combination of such are used; e.g. polysaccharides such as agar, cellulose, or starch, proteins and components of proteins and polysaccharides. The support matrix is substituted with a first soluble polymer material chemically bound to the support matrix, whereupon additional polymer materials are built into the primary synthesized support matrix polymer complex through different kinds of cross-oinks whereby optionally the support matrix is present in the form of an acid- and base-stable residue.