Amphiphilic Graft Copolymers And Medical Devices With Enhanced Bond Strength

A medical device formed from a blend comprising:

• a base polymeric formulation comprising at least a polymer or co-polymer of propylene;
• and
• an additive comprising a copolymer having a polypropylene backbone and hybrid micromolecule side-chains based on organo-functional silanes (PP-g-XSiOA), where “X” is an organic group or an organo-functional group;
• and “A” is a metal, an inorganic oxide, an inorganic hydroxide, or any other inorganic material;
• the PP-g-XSiOA being present in the blend in an amount in the range of about 0.01 to about 20.0% by weight of the blend.

A medical device comprising:

• a tubing comprising a polymeric blend comprising a base polymeric formulation comprising at least a polymer or co-polymer of propylene and an additive comprising a copolymer having a polypropylene backbone and hybrid micromolecule side-chains based on organo-functional silanes (PP-g-XSiOA), where “X” is an organic group or an organo-functional group;
• and “A” is a metal, an inorganic oxide, an inorganic hydroxide, or any other inorganic material;
• wherein the PP-g-XSiOA is present in the blend in an amount in the range of about 0.01 to about 20.0% by weight of the blend;
• and
• a connector bonded to the tubing.

A method of making a medical device comprising:

• obtaining a copolymer having a polypropylene backbone and hybrid micromolecule side-chains based on organo-functional silanes (PP-g-XSiOA), where “X” is an organic group or an organo-functional group;
• and “A” is a metal, an inorganic oxide, an inorganic hydroxide, or any other inorganic material;
• combining the PP-g-XSiOA with a base polymeric formulation comprising at least a polymer or co-polymer of propylene to form a blend, the PP-g-XSiOA being present in the blend in an amount in the range of about 0.01 to about 20.0% by weight of the blend;
• forming a tubing from the blend;
• and
• bonding the tubing to a connector in the absence of an adhesive to form the medical device.