TH13674A - Medical grade contact tubing with non-PVC polymer squeezed out together. - Google Patents

Abstract

The invention provides a quality medical-grade contact tube. Improvement Medical-grade contact tubes have specific characteristics. Desirable in the medical industry It may therefore be used as a medical contact tube in, for example, in the treatment of kidney disease or a blood supply tube at this point.This invention provides a medically quality non-PVC contact tube. Squeezed out together The outer layer contains a mixture of polypropylene copolymer and styrene-ethylene-butylene-styrene copolymer; Link class; Core layer with Mixture of polyamide and ethylene vinyl acetate:

Claims (9)

1. A grade quality contact tubing for medical use, non-PVC squeezed joint, consisting of an outer layer (12) composed of a mixture of polypropylene, copolymer and styrene mixtures An-ethylene-butylene-styrene-core copolymer (16) containing a mixture of polyamide. And ethylene vinyl acetate, and the intermediate link layer (14) bounded with the outer layer (12) with the inner link layer (16), the middle link layer (14) containing the styrene- Ethylene-butylene-styrene copolymers, which interact with the outer layer of polypropylene copolymer (12) and polyester. A type of tercopolymer which interacts with the polyamide components in the core layer (16). 2.Contacts-grade medical use non-PVC squeezed out joint. Of claim 1 that the link layer consists of a mixture of polyester, polypropylene, copolymer, tyrene-ethylene-butylene-s. Tyrene copolymer and ethylene vinyl acetate 3.Top quality non-PVC medical contact tubing squeezed out together. Of claim 1 at the link level (14) is a mixture consisting of Copolyester 30 to 60% by weight Polypropylene copolymer 0 to 20% by weight Styrene-ethylene-butylene-s 30 to 60% tyrene copolymer by weight and 0 to 30% ethylene vinyl acetate by weight. 4. A grade quality contact tubing for medical use, non PVC squeezed out joint of One of the preceding claims that the outer layer (12) contains a mixture of 40 to 99% polypropylene copolymer by weight and styrene-ethylene- Butylene-Styrene copolymer 1 to 60% by weight 5. Medical grade non-PVC contact tubing squeezed out jointly of claim 4 on the outer layer (12) consisting of a mixture of polypropylene copolymer 60. % By weight and styrene-ethylene-butylene-styrene 40% by weight 6. A grade quality medical grade non-PVC contact tubing squeezed out joint of One of the preceding claims was that the polyamide component in the inner core (16) consisted of at least two different polyamides. 7. Medical grade non-PVC contact tubing squeezed out joint. Of claim 6 on polyamide components There are No. 1 quality polypropylene and No. 2 quality polyamide. 8. Non-PVC medical grade contact tubing squeezed out together. Of any 1 to 5 claim, the core layer (14) consists of 70% polyamide block by weight and 30% ethylene vinyl acetate. 9. A grade quality non-PVC medical contact tubing squeezed out together. Of claim 7, where the polyamide component contains: 60% polyamide blocks by weight (quality number 1); And 20% polyamide blocks by weight (quality number 2); And the inner core (16) contains 20% ethylene vinyl acetate by weight 1 0. Non-PVC medical containers for holding medical fluids. A physician equipped with a quality contact tubing for medical use, non-PVC squeezed jointly (10) in accordance with one of the previous claims.