Port tube and closure composition, structure and assembly for a flowable material container
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16L-011/04
F16L-009/14
F16L-009/00
A61M-005/00
출원번호
UP-0042651
(2005-01-24)
등록번호
US-7550185
(2009-07-01)
발명자
/ 주소
Ling, Michael T. K.
Hurst, William S.
Woo, Lecon
Bindokas, Algirdas
Ryan, Patrick T.
Edwards, Scott D.
Blom, Henk P.
Khare, Atul R.
출원인 / 주소
Baxter International Inc.
대리인 / 주소
Finkelstein, Ira D.
인용정보
피인용 횟수 :
6인용 특허 :
132
초록▼
The present invention provides a flowable material container assembly having a membrane tube disposed coaxially within a port tube. The membrane tube has an outer layer, a core layer, and an inner layer. The outer layer is a blend of a polyolefin and a thermoplastic elastomer. The core layer is a bl
The present invention provides a flowable material container assembly having a membrane tube disposed coaxially within a port tube. The membrane tube has an outer layer, a core layer, and an inner layer. The outer layer is a blend of a polyolefin and a thermoplastic elastomer. The core layer is a blend of a polyolefin and a thermoplastic elastomer. The inner layer is a blend of a polyolefin, a radio frequency susceptible polymer, and a thermoplastic elastomer.
대표청구항▼
The invention is claimed as follows: 1. A multiple layered non-PVC containing tubing comprising: an outer layer of a polymer blend of: (a) from about 20% to about 55% by weight of the outer layer of a first polyolefin and (b) from about 45% to about 80% by weight of the outer layer of a first therm
The invention is claimed as follows: 1. A multiple layered non-PVC containing tubing comprising: an outer layer of a polymer blend of: (a) from about 20% to about 55% by weight of the outer layer of a first polyolefin and (b) from about 45% to about 80% by weight of the outer layer of a first thermoplastic elastomer; a core layer attached to the outer layer, the core layer being a polymer blend of: (a) from about 50% to about 90% by weight of the core layer of a second thermoplastic elastomer and (b) from about 10% to about 50% by weight of the core layer of a second polyolefin; and an inner layer attached to the core layer on a side opposite of the outer layer, the inner layer being a polymer blend of: (a) from about 25% to about 55% by weight of the inner layer of a third polyolefin, (b) from about 0 to about 50% by weight of the inner layer of a fourth polyolefin selected from the group consisting of ethylene copolymers, ultra-low density polyethylene, polybutene, and butene ethylene copolymers; (c) from about 15% to about 40% by weight of the inner layer of a radio frequency susceptible polymer selected from the group consisting of polyamides, ethylene acrylic acid copolymers, ethylene methacrylic acid copolymers, polyimides, polyurethanes, polyesters, polyureas, ethylene vinyl acetate copolymers with a vinyl acetate comonomer content from 12%-50% by weight of the copolymer, ethylene methyl acrylate copolymers with methyl acrylate comonomer content from 12%-40% by weight of the copolymer, ethylene vinyl alcohol with vinyl alcohol comonomer content from 12%-70% by mole percent of the copolymer; and (d) from about 15% to about 40% by weight of the inner layer of a styrene and hydrocarbon copolymer. 2. The tubing of claim 1 wherein the polyamide is selected from a group consisting of aliphatic polyamides resulting from the condensation reaction of di-amines having a carbon number within a range of 2-13, aliphatic polyamides resulting from a condensation reaction of di-acids having a carbon number within a range of 2-13, polyamides resulting from the condensation reaction of dimer fatty acids, and amide containing copolymers. 3. The tubing of claim 1 wherein the polyamide is a dimer fatty acid polyamide. 4. The tubing of claim 1 wherein the first polyolefin is selected from the group consisting of a polypropylene homopolymer, a propylene copolymerized with a monomer selected from the group consisting of α-olefins having from 2-17 carbons, ethylene homopolymers and ethylene copolymerized with a monomer selected from the group consisting of α-olefins having from 2-17 carbons. 5. The tubing of claim 4 wherein the first polyolefin is a propylene and ethylene copolymer having an ethylene content of from about 1% to about 8% by weight of the first polyolefin. 6. The tubing of claim 1 wherein the second polyolefin is selected from the group consisting of a polypropylene homopolymer, a propylene copolymerized with a monomer selected from the group consisting of α-olefins having from 2-17 carbons, ethylene homopolymers and ethylene copolymerized with a monomer selected from the group consisting of α-olefins having from 2-17 carbons. 7. The tubing of claim 1 wherein the third polyolefin is selected. from the group consisting of a polypropylene homopolymer, a propylene copolymerized with a monomer selected from the group consisting of α-olefins having from 2-17 carbons, ethylene homopolymers and ethylene copolymerized with a monomer selected from the group consisting of α-olefins having from 2-17 carbons. 8. The tubing of claim 1 wherein the first thermoplastic elastomer is selected from the group consisting of a first styrene and hydrocarbon copolymer. 9. The tubing of claim 8 wherein the first styrene and hydrocarbon copolymer is selected from the group of polymers structures with diblock, triblock, radial block, and star block. 10. The tubing of claim 9 wherein the first thermoplastic elastomer is selected from a first styrene-ethylene-butene-styrene copolymer, styrene-isoprene-styrene copolymer and styrene-ethylene-propylene-styrene copolymer. 11. The tubing of claim 10 wherein the first thermoplastic elastomer is a styrene-ethylene-butene-styrene diblock copolymer and a styrene-ethylene-butene-styrene triblock copolymer. 12. The tubing of claim 1 wherein the second thermoplastic elastomer is selected from the group consisting of a second styrene and hydrocarbon copolymer. 13. The tubing of claim 12 wherein the second styrene and hydrocarbon copolymer is selected from the group consisting of a polymer structure with diblock, triblock, copolymers, styrene and hydrocarbon star block copolymers, and blends containing the same. 14. The tubing of claim 13 wherein the second thermoplastic elastomer is selected from a second styrene-ethylene-butene-styrene copolymer, a second styrene-isoprene-styrene copolymer and a second styrene-ethylene-propylene-styrene copolymer. 15. The tubing of claim 1 wherein the styrene and hydrocarbon copolymer is selected from the group consisting of polymer structure with diblock, triblock, star block copolymers and blends of the same. 16. The tubing of claim 15 wherein the styrene and hydrocarbon copolymer is a styrene-ethylene-butene-styrene block copolymer. 17. The tubing of claim 15 wherein the styrene and hydrocarbon copolymer is functionalized with a group selected from the group consisting of carboxylic acid, esters of carboxylic acids, anhydrides of carboxylic acids, epoxides, and carbon monoxide. 18. The tubing of claim 17 wherein the styrene and hydrocarbon copolymer is maleic anhydride functionalized. 19. The tubing of claim 1 wherein the fourth polyolefin is an ethylene copolymerized with a monomer selected from the group consisting of α-olefins. 20. The tubing of claim 19 wherein the fourth polyolefin is an ethylene and α-olefin copolymer. 21. The tubing of claim 20 wherein the ethylene and α-olefin copolymer is obtained using a single-site catalyst.
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