Patent · US Active

Process for preparing hydrogels

US10307512B2 · kind B2 · utility

0Cited by
1References
19Claims
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Assignee

Inventors

Key dates

Filing dateDec 15, 2015
Grant dateJun 4, 2019
Priority date—
Expiry dateJan 14, 2036

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08J2305/08
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

The present invention relates to a process for preparing a crosslinked gel of at least one polysaccharide or a salt thereof, comprising at least the steps consisting in: a) providing a solution formed from an aqueous medium comprising at least said polysaccharide(s) or a salt thereof in a non-crosslinked form, at least one difunctional or multifunctional epoxide crosslinking agent chosen from butanediol diglycidyl ether, diepoxyoctane, 1,2-bis(2,3-epoxypropyl)-2,3-ethylene, and mixtures thereof, and at least one phosphate salt; b) crosslinking the solution from step a) and, where appropriate; c) recovering said crosslinked gel formed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.