EP0203049A1
Expired / Lapsed
EP
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Method of cross-linking a porous polysaccharide gel
Assignee: Pfizer Health AB
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Filing: 1986-05-16
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Granted: —
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Expires: 2006-05-16
Abstract
Abstract A porous polysaccharide gel is cross-linked in thata) the gel is derivatized with a monofunctional reagent having at least one functional group that can be activated,b) the functional group of the reagent is activated,c) the activated group is reacted,d) the resulting product is, optionally, reacted with the monofunctional reagent,e) the steps b) and c) are repeated, andf) the steps d) and e) are repeated at least once.
Inventors
- 👤 Göran Einar Samuel Lindgren
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 05:51
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0036; C08B37/0039; B; B01; B01J; B01J20/00; B01J20/22; B01J20/26; B01J20/262; B01J20/265; B01J20/267; B01J20/28; B01J20/28002; B01J20/28004; B01J20/28011; B01J20/281; B01J20/282; B01J20/285; B01J20/291; B01J20/30; B01J20/3071; B01J20/3085; B01J20/3092; B01J2220/00; B01J2220/50; B01J2220/54; B01J2220/58
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
84 words
Method of cross-linking a porous polysaccharide gel, characterized by the following steps: a) that the polysaccharide gel is derivatized with a monofunctional reagent having at least one functional group that can be activated b) that the functional group of the reagent is activated c) that the activated group is reacted d) that the resulting product, optionally, is reacted with the monofunctional reagent e) that the steps b) and c) are repeated, and f) that the steps d) and e) are repeated at least once.
Claim 2
Dependent Claim
84 words
Method of cross-linking a porous polysaccharide gel, characterized by the following steps: a) that the polysaccharide gel is derivatized with a monofunctional reagent having at least one functional group that can be activated b) that the functional group of the reagent is activated c) that the activated group is reacted d) that the resulting product, optionally, is reacted with the monofunctional reagent e) that the steps b) and c) are repeated, and f) that the steps d) and e) are repeated at least once.
Claim 3
Dependent Claim
29 words
Method according to claim 1, characterized in that after step c) the resulting product is reacted with a bifunctional or polyfunctional cross-linking agent in a manner known per se.
References Cited (Backward Citations)
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