Ionomeric modified poly-ether-ester plastic tube for use in conveying medical solutions and the like
OwnerDudley W. C. Spencerinventor
Life of this patent
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Abstract
An ionomeric modified poly-ether-ester plastic material is used as a substitute for the conventional uses of polyvinyl chloride in such applications as tubing for medical applications, for bags and other medical containers, for tubing in food processing and as sheets and films for bacterial and virus exclusion. The ionomeric modified poly-ether-ester has various advantages which make it particularly suitable for such uses.
Claims22
In an assembly for transferring a fluid between a first location and a remote container by means of plastic tubing, the improvement being in that said plastic tubing is made from an ionomeric modified poly-ether-ester material, said poly-ether-ester being a block copolymer containing both poly-ether and ester blocks modified by an ionomer, said ionomer being a copolymer of ethylene with 1-10% methacrylic acid converted to methacrylate salt, said poly-ether-ester and said ionomer both individually and in combination being plasticizer-free, said material being capable of being welded to itself to form a seal which resists opening at internal pressure of up to 60 psi, and said seal being capable of opening under external finger pressure.
A plastic tubing for conveying fluid between a first location and a remote container, said tubing being made from an ionomeric modified poly-ether-ester material containing from 2% to 15% ionomer, said poly-ether-ester being a block copolymer containing both polyether and ester blocks modified by an ionomer, said ionomer being a copolymer of ethylene with 1-10% methacrylic acid converted to methacrylate salt, said poly-ether-ester and said ionomer both individually and in combination being plasticizer-free, said tubing being capable of being welded to itself to form a seal which resists opening at internal pressure up to 60 psi, and said seal being capable of being opened under external finger pressure.
Dependencies are inferred from the claim text.