EP0330151A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Bag for the storage of blood platelets
Assignee: Nissho Corp
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Filing: 1989-02-21
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Granted: —
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Expires: 2009-02-21
Abstract
Abstract A bag for storage of platelets comprising a polymer alloy consisting essentially of (a) 25 to 60 % by weight of poly(ethylene-butylene)-polystyrene block copolymer, (b) 20 to 40 % by weight of polypropylene, and (c) 5 to 35 % by weight of ethylene-acrylic acid ester copolymer, the segment of said polystyrene in the molecular chains of said polymer (a) having at least 2 oriented portions and the molecular chains of the polymers (a), (b) and (c) being entangled to form a network structure, and a multiple bag system comprising a donor bag, a transfer bag and tubes for connecting the donor bag with the transfer bag. The bag and the multiple bag system have excellent chemical stability and show excellent mechanical strength at high or low temperatures.
Inventors
- 👤 Futagawa Hitoshi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 19:37
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08L53/00; C08L53/02; C08L53/025; A; A61; A61J; A61J1/00; A61J1/05; A61J1/10; A61M; A61M2202/00; A61M2202/04; A61M2202/0413; A61M2202/0427
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
83 words
A bag for storage of platelets comprising a polymer alloy consisting essentially of (a) 25 to 60 % by weight of poly(ethylene-butylene)-polystyrene blcok copolymer, (b) 20 to 40 % by weight of polypropylene, and (c) 5 to 35 % by weight of ethylene-acrylic acid ester copolymer, the segment of said polystyrene in the molecular chains of said polymer (a) having at least 2 oriented portions and the molecular chains of said polymers (a), (b) and (c) being entangled to form a network structure.
Claim 2
Dependent Claim
83 words
A bag for storage of platelets comprising a polymer alloy consisting essentially of (a) 25 to 60 % by weight of poly(ethylene-butylene)-polystyrene blcok copolymer, (b) 20 to 40 % by weight of polypropylene, and (c) 5 to 35 % by weight of ethylene-acrylic acid ester copolymer, the segment of said polystyrene in the molecular chains of said polymer (a) having at least 2 oriented portions and the molecular chains of said polymers (a), (b) and (c) being entangled to form a network structure.
Claim 3
Dependent Claim
154 words
A multiple bag system comprising (a) a donor bag for receiving blood from a donor and separating the components of the blood, (b) one or more than one transfer bags for storing the separated blood components, of which material is different from that of the donor bag, and (c) tubes for connecting the donor bag with the transfer bag and transferring the separated blood components from the donor bag to the transfer bag, wherein said transfer bag comprises a polymer alloy consisting essentially of (i) 25 to 60 % by weight of poly(ethylene-butylene)-polystyrene block copolymer, (ii) 20 to 40 % by weight of polypropylene, and (iii) 5 to 35 % by weight of ethylene-acrylic acid ester copolymer, the segment of said polystyrene in the molecular chains of said polymer (a) having at least 2 oriented portions and the molecular chains of said polymers (i), (ii) and (iii) being entangled to form a network structure.
Claim 4
Dependent Claim
154 words
A multiple bag system comprising (a) a donor bag for receiving blood from a donor and separating the components of the blood, (b) one or more than one transfer bags for storing the separated blood components, of which material is different from that of the donor bag, and (c) tubes for connecting the donor bag with the transfer bag and transferring the separated blood components from the donor bag to the transfer bag, wherein said transfer bag comprises a polymer alloy consisting essentially of (i) 25 to 60 % by weight of poly(ethylene-butylene)-polystyrene block copolymer, (ii) 20 to 40 % by weight of polypropylene, and (iii) 5 to 35 % by weight of ethylene-acrylic acid ester copolymer, the segment of said polystyrene in the molecular chains of said polymer (a) having at least 2 oriented portions and the molecular chains of said polymers (i), (ii) and (iii) being entangled to form a network structure.
Claim 5
Dependent Claim
17 words
The multiple bag system of Claim 2, wherein said donor bag comprises polyvinyl chloride containing dioctyl phthalate.
References Cited (Backward Citations)
No citation records indexed.
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