The present invention provides: a rust inhibitor that has excellent rust inhibiting and anti-corrosive properties, not only on iron members, but also on non-iron metal members, and can prevent rust and corrosion over long periods; a rust inhibitor composition that contains the rust inhibitor, a coating formation material; a coating obtained from the rust inhibitor, the rust inhibitor composition, or the coating formation material; and a metal component that comprises the coating. This rust inhibitor contains at least one compound represented by a Chemical Formula (1). ##STR00001##
(In the formula: R.sup.1 is a hydrogen atom or an aliphatic hydrocarbon group with a carbon number of 1-33; R.sup.2 is an aliphatic hydrocarbon group with a carbon number of 1-33; the total carbon number of R.sup.1 and R.sup.2 is 1-34; X is a single bond or an aliphatic hydrocarbon group with a carbon number of 1-5; either A.sup.1 or A.sup.2 is —OH; and the other is —O—CH.sub.2—CH(OH)—CH.sub.2OH or —O—CH(—CH.sub.2—OH).sub.2.)

High temperature lubricants for magnetic media are provided. One such lubricant includes fluoroalkyl, fluoroalkenyl, perfluoroalkyl, or perfluoroalkyl ether segments, anchoring functional groups engageable with a protective overcoat of a magnetic recording media, and cyclic functional groups. The lubricants can be used in conjunction with a magnetic recording medium and/or a magnetic data storage system.

A composite material comprising a plurality of polymer chains fixed to a base and swelled with a mixture which contains a salt and a hydrogen bond-donating compound and has a melting point maintained at 100° C. or less.

A urinary catheter including a hydrophilic coatings on the outer surface of the catheter tube wherein the hydrophilic coatings comprises a hydrophilic polymer and a diacrylate compound have a number average molecular weight between about 200 and about 600.

The fluorine-containing ether compound is represented by the following formula (1): R.sup.1—R.sup.2—CH.sub.2—R.sup.3—CH.sub.2—R.sup.4. In the formula (1), R.sup.1 is represented by the following formula (2), R.sup.2 is represented by the following formula (3), R.sup.3 is a perfluoropolyether chain, and R.sup.4 is an organic end group different from R.sup.1—R.sup.2— and contains two or three polar groups, wherein each polar group is bonded to a different carbon atom, and the carbon atoms to which the polar groups are bonded are bonded to one another via a linking group containing a carbon atom to which the polar group is not bonded. In the formula (2), R.sup.5 is an alkoxy group selected from the group consisting of a methoxy, an ethoxy and a propoxy group. In the formula (3), w is 2 or 3. ##STR00001##

Coatings for medical devices having selectable levels of durability and lubricity are disclosed. The coatings include polymeric material components, the characteristics and relative amounts of which can be selected to provide target levels of durability and lubricity. Methods of making the coatings for medical devices are also disclosed.

Provided is a fluorine-containing ether compound capable of forming a lubricant layer having excellent wear resistance even when the thickness is thin, and suitable as a material of a lubricant for a magnetic recording medium. The fluorine-containing ether compound is a compound represented by the following formula (1): R.sup.1—R.sup.2—CH.sub.2—R.sup.3—CH.sub.2—R.sup.4—R.sup.5; wherein R.sup.3 is a perfluoropolyether chain; R.sup.1 is a terminal group bonded to R.sup.2; R.sup.5 is a terminal group bonded to R.sup.4; R.sup.1 is an alkenyl group or an alkynyl group; R.sup.5 is a group containing a heterocyclic ring; R.sup.2 is represented by the following formula (2); R.sup.4 is represented by the following formula (3); and a in the formula (2) and b in the formula (3) are each independently an integer of 1 to 3. ##STR00001##

Embodiments herein include coated medical devices and coatings with salt groups. In an embodiment, a coated medical device is included, the coated medical device including a substrate and a polymeric layer disposed over the substrate. The polymeric layer includes a polymer and has an exterior surface. The coated medical device further includes a plurality of salt groups bonded to the polymer of the polymeric layer and disposed on the exterior surface of the polymeric layer. The salt groups can be the reaction product of a reactive group with an acid or base. In an embodiment, a method of making a medical device is included. Other embodiments are also included herein.

A fluorine-containing ether compound represented by Formula (1) is provided;
R.sup.1—R.sup.2—CH.sub.2—R.sup.3—CH.sub.2—R.sup.4—R.sup.5  (1)
(In Formula (1), R.sup.1 and R.sup.5 may be the same as or different from each other and each represents an alkenyl group having 2 to 8 carbon atoms or an alkynyl group having 3 to 8 carbon atoms, R.sup.2 and R.sup.4 may be the same as or different from each other and each represents a divalent linking group having a polar group, and R.sup.3 represents a perfluoropolyether chain, with a proviso that R.sup.1 and R.sup.2 are, and R.sup.4 and R.sup.5 are divided due to the presence of an atom other than the carbon atom such as an oxygen atom).

A fluorine-containing ether compound represented by formula (1) shown below.

R.sup.4—CH.sub.2—R.sup.3—CH.sub.2—R.sup.2—CH.sub.2—R.sup.1—CH.sub.2—R.sup.2—CH.sub.2—R.sup.3—CH.sub.2—R.sup.4  (1)

(In formula (1), R.sup.1 and R.sup.3 represent different perfluoropolyether chains, R.sup.2 represents a linking group containing one or more polar groups, and R.sup.4 represents a terminal group containing two or more polar groups.)