Patent EP0167363A2 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0167363A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Crosslinked glycosaminoglycans and their use

Assignee: Seikagaku Corp
•
Filing: 1985-06-27
•
Granted: —
•
Expires: 2005-06-27
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Crosslinked glycosaminoglycans or salts thereof prepared by crosslinking glycosaminoglycan or salts thereof with a polyfunctional epoxy compound wherein a crosslinking index is 0.005 or more per 1 mole of repeating disaccharides in glycosaminoglycan, and having various medical and cosmetic uses.

Inventors

  • 👤 Katukiyo C/O Tokyo Kenkyusho Sakurai
  • 👤 Yoshio C/O Tokyo Kenkyusho Ueno
  • 👤 Takashi C/Otokyo Kenkyusho Okuyama

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 15:39
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/006; C08B37/0063; C08B37/0075; A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/73; A61K8/735; A61K9/00; A61K9/70; A61L; A61L31/00; A61L31/04; A61L31/042; A61L31/043; A61L31/044; A61Q; A61Q19/00; C08B37/0072; C08L; C08L5/00; C08L5/08

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 44 words
A crosslinked glycosaminoglycan or a salt thereof obtainable by crosslinking a glycosaminoglycan (provided that hyaluronic acid is excluded) or a salt thereof with a polyfunctional epoxy compound wherein a crosslinking index is 0.005 or more per 1 mole of repeating disaccharides in said glycosaminoglycan.
Claim 2
Dependent Claim 44 words
A crosslinked glycosaminoglycan or a salt thereof obtainable by crosslinking a glycosaminoglycan (provided that hyaluronic acid is excluded) or a salt thereof with a polyfunctional epoxy compound wherein a crosslinking index is 0.005 or more per 1 mole of repeating disaccharides in said glycosaminoglycan.
Claim 3
Dependent Claim 34 words
The crosslinked glycosaminoglycan or a salt thereof as claimed in Claim 1 wherein it has a crosslinking index of 0.165 or more per 1 mole of repeating disaccharides in said glycosaminoglycan and is water-insoluble.
Claim 4
Dependent Claim 34 words
The crosslinked glycosaminoglycan or a salt thereof as claimed in Claim 1 wherein said glycosaminoglycan is chondroitin sulfate, heparin, heparan sulfate, keratan sulfate or keratanpolysulfate and said polyfunctional epoxy compound is epichlorohydrin or epibromohydrin.
Claim 5
Dependent Claim 39 words
A pharmaceutical composition for applying to vitreous body comprising as an active ingredient in combination with an ophthamologically acceptable carrier or diluent, wherein said active ingredient is a crosslinked glycosaminoglycan or a salt thereof as claimed in Claim 1.
Claim 6
Dependent Claim 29 words
A cosmetic composition for applying to skin comprises a crosslinked glycosaminoglycan or a salt thereof as claimed in Claim 1 in combination with a cosmetically acceptable carrier or diluent.
Claim 7
Dependent Claim 19 words
A molding composition for medical divice comprises a crosslinked glycosaminoglycan or a salt thereof as claimed in Claim 1.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag