Warner-lambert Company

Becton Dickinson and Company Limited

Vincent J Pascarella

Charles W McGary, Jr

Donald D Solomon

Delmer R Rhodes

Robert A Taller

Charles W Daugherty

Paul E Anglin

An antithrombogenic polyurethane polymer being bound to a support substrate wherein the antithrombogenic agent is reacted through an aldehyde group with an amine functionality of a polyurethane-urea to form the covalently bonded antithrombogenic material.

Permanently bonded antithrombogenic polyurethane surface

Antithrombogenic polyurethane polymers having the antithrombogenic material covalently bound to the polyurethane.

Covalent bonded antithrombogenic polyurethane material

A soft, low modulus, non-crystalline segmented polyurethane characterized by a 100% modulus less than about 250 psi, initial tensile set less than about 30% and tensile strength of about 3500 to 6500 psi obtained by balancing the percent hard segment and the degree of cross-linking within the ranges 14 to 25% hard segment and 5,000 to 30,000 molecular weight per cross-link in a segmented polyurethane; and a flexible glove for use by surgeons and others which is easily donned and comfortable on the hand, wherein the glove forming material consists essentially of the aforesaid polyurethane.

Polyurethane elastomer and an improved hypoallergenic polyurethane

A powder coating process for producing soft, flexible polyurethane films particularly in the form of a surgical glove, wherein low melting crystalline prepolymer particles are powder coated and cured to an essentially non-crystalline film.

Powder coating process for forming soft flexible polyurethane film

A crystalline grindable end-blocked prepolymer useful in providing a polyurethane elastomer having a 100% modulus less than approximately 250 psi, tensile of 3500 to 6500 psi, and less than 30% initial tensile set, said prepolymer being the product of reacting an organic polyisocyanate, a long chain crystalline diol having an average molecular weight of approximately 500 to 5000, a polyhydroxy cross-linking agent, and an end-blocking agent.

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Dayton, OH, United States of America

Vincent J Pascarella