The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2003
Filed:
Feb. 05, 2001
Andrew M. Rohn, Clinton, OH (US);
Anthony S. Scheibelhoffer, Norton, OH (US);
James T. Kempthorn, Cuyahoga Falls, OH (US);
Kenneth D. Zabielski, McHenry, IL (US);
Deenadayalu Chundury, Newburgh, IN (US);
Timothy W. Birch, Ravenna, OH (US);
Ferro Corporation, Cleveland, OH (US);
Abstract
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/cm ) . 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.