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AssigneeFerro Corporation
InventorsAndrew M. Rohn, Anthony S. Scheibelhoffer, James T. Kempthorn, Kenneth D. Zabielski, Deenadayalu Chundury, Timothy W. Birch
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The present invention provides an adhesive composition for use in bonding a polymeric fitting to an olefin-containing component of an article used in medical applications. The adhesive composition according to the invention includes an adhesive polymer system dissolved in a solvent system. The solvent system includes an organic solvent having a solubility parameter within the range of from about 7.5 to about 10 (cal/cm3)1/2. Subsequent to forming a bond between the polymeric fitting and the olefin-containing component, the adhesive composition can meet the requirements for USP Class VI materials. In a preferred embodiment of the invention, the adhesive composition includes a low shear mixture of an adhesive polymer system including an atactic polypropylene and a low density polyethylene that is dissolved in a solvent system including a blend of d-limonene and a ketone selected from the group consisting of 4-heptanone and cyclohexanone. The adhesive composition can be used, for example, to bond polymeric fittings made of materials such as, but not limited to, acrylic, polycarbonate, polyvinyl chloride, polyolefin, acrylonitrile butadiene-styrene, and polyester, to olefin-containing components of articles used in medical applications such as, but not limited to, tubing.
An adhesive composition for use in bonding a polymeric fitting to an olefin-containing component of an article used in medical applications, said adhesive composition comprising:
An adhesive composition for use in bonding a polymeric structure to an olefin-containing component of an article used in medical applications, said adhesive composition comprising a low shear mixture of an atactic polypropylene and a low density polyethylene dissolved in from about 65% to about 97% by weight of a solvent system comprising a blend of from about 5% to about 50% by weight d-limonene and from about 50% to about 95% by weight of a ketone selected from the group consisting of 4-heptanone and cyclohexanone, said adhesive composition subsequent to forming a bond between said polymeric fitting and said olefin-containing component meeting the requirements for USP Class VI materials.
Dependencies are inferred from the claim text.