Patent EP0124433A2 successfully refreshed from Google Patents.
Patent EP0103875A2 successfully refreshed from Google Patents.
EP0103875A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Packing for chromatography
Assignee: Asahi Kasei Corp
•
Filing: 1983-09-17
•
Granted: —
•
Expires: 2003-09-17
Abstract
Abstract A packing for chromatography, comprising a granular absorbent and a fibrous material which are substantially homogeneously mixed with each other.
Inventors
- 👤 Hatsuki Onitsuka
- 👤 Nobuyoshi Karasawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 18:54
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/281; B01J20/28; B01J20/28014; B01J20/28023; B01J20/28028; B01J20/2803; B01J47/00; B01J47/018; B01J2220/00; B01J2220/40; B01J2220/42; B01J2220/44; B01J2220/46; B01J2220/50; B01J2220/54
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
20 words
A packing for chromatography, comprising a granular adsorbent and a fibrous material which are substantially homogeneously mixed with each other.
Claim 2
Dependent Claim
20 words
A packing for chromatography, comprising a granular adsorbent and a fibrous material which are substantially homogeneously mixed with each other.
Claim 3
Dependent Claim
14 words
A packing according to Claim 1, wherein the fibrous material has no ion-exchange group.
Claim 4
Dependent Claim
26 words
A packing according to Claim 1, wherein the fibrous material has a diameter which is 1/4-fold or less of the average size of the granular adsorbent.
Claim 5
Dependent Claim
41 words
A packing according to Claim 1, wherein the fibrous material is contained in an amount of 0.5 % to 60 % by weight based on the total weight of the fibrous materia- and the granular adsorbent, each being under dried state.
Claim 6
Dependent Claim
23 words
A packing according to Claim 4, wherein the fibrous material is contained in an amount of 1 % to 40 % by weight.
Claim 7
Dependent Claim
24 words
A packing according to Claim 1, wherein the difference in true specific gravity between the fibrous material and the granular adsorbent is within 3.
Claim 8
Dependent Claim
18 words
A Packing according to Claim 1, wherein the fibrous material is a synthetic fiber or an inorganic fiber.
Claim 9
Dependent Claim
31 words
A packing according to Claim l, wherein the fibrous material has a length of 0.1 mm to 5 mm and a ratio of length to diameter which is 5 or more.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.