A modified ethylene-vinyl alcohol copolymer fiber includes an ethylene-vinyl alcohol copolymer containing 0.1 to 10 mol % of a modified component and 5 to 55 mol % of ethylene, and has a crystallinity of 25% to 50%.

A modified ethylene-vinyl alcohol copolymer fiber includes an ethylene-vinyl alcohol copolymer containing 0.1 to 10 mol % of a modified component and 5 to 55 mol % of ethylene, and has a crystallinity of 25% to 50%.

The present invention is directed to a polymer of Formula (IV): wherein A, X, Q, Y, Z, m1; m2, m3, k1; and k2 are as described herein and wherein the monomer units of the polymer are the same or different. The present invention also relates to a monomer of Formula (III), wherein R″, X.sup.1, Y.sup.1, Z.sup.1, m4, m5, and m6 are as described herein, and a polymeric network comprising two or more monomers of Formula (III). The present invention also relates to a hydrogel comprising any of the polymers and monomers described herein, a capsule comprising the hydrogel, and a method of delivering a therapeutic agent to a subject using the capsule. ##STR00001##

The present invention is directed to a polymer of Formula (IV): wherein A, X, Q, Y, Z, m1; m2, m3, k1; and k2 are as described herein and wherein the monomer units of the polymer are the same or different. The present invention also relates to a monomer of Formula (III), wherein R″, X.sup.1, Y.sup.1, Z.sup.1, m4, m5, and m6 are as described herein, and a polymeric network comprising two or more monomers of Formula (III). The present invention also relates to a hydrogel comprising any of the polymers and monomers described herein, a capsule comprising the hydrogel, and a method of delivering a therapeutic agent to a subject using the capsule. ##STR00001##

The disclosure provides an adhesion preventing agent composition for unvulcanized rubber of which the viscosity is not too high and which allows both lubricity and dispersibility to be obtained in addition to excellent adhesion preventing properties. To achieve the above objective, an adhesion preventing agent composition for unvulcanized rubber of the disclosure includes the following components (A) to (C) and water, wherein the component (B) includes the following components (B1) and (B2), and wherein the mass ratio (B1)/(B2) of the following component (B1) and the following component (B2) is in a range of 1 to 20: (A) a water-soluble polymer, (B) a metallic soap, (C) a surfactant, (B1) at least one metallic soap selected from the group consisting of calcium fatty acid and lithium fatty acid, and (B2) at least one metallic soap selected from the group consisting of zinc fatty acid, magnesium fatty acid, and aluminum fatty acid.

The disclosure provides an adhesion preventing agent composition for unvulcanized rubber of which the viscosity is not too high and which allows both lubricity and dispersibility to be obtained in addition to excellent adhesion preventing properties. To achieve the above objective, an adhesion preventing agent composition for unvulcanized rubber of the disclosure includes the following components (A) to (C) and water, wherein the component (B) includes the following components (B1) and (B2), and wherein the mass ratio (B1)/(B2) of the following component (B1) and the following component (B2) is in a range of 1 to 20: (A) a water-soluble polymer, (B) a metallic soap, (C) a surfactant, (B1) at least one metallic soap selected from the group consisting of calcium fatty acid and lithium fatty acid, and (B2) at least one metallic soap selected from the group consisting of zinc fatty acid, magnesium fatty acid, and aluminum fatty acid.

Modified water soluble polymer crosslinking agents can be used by themselves or in combination with conventional crosslinking agents, other crosslinkable base polymers, and/or hardeners. The dried composition is redispersible in water prior to crosslinking, but is stable to water after crosslinking, also offering improved stain resistance.

Modified water soluble polymer crosslinking agents can be used by themselves or in combination with conventional crosslinking agents, other crosslinkable base polymers, and/or hardeners. The dried composition is redispersible in water prior to crosslinking, but is stable to water after crosslinking, also offering improved stain resistance.

This invention concerns imageable, radiopaque embolic beads, which are particularly useful for monitoring embolization procedures. The beads comprise iodine containing compounds which are covalently incorporated into the polymer network of a preformed hydrogel bead. The beads are prepared by activating pre-formed hydrogel beads towards nucleophilic attack and then covalently attaching iodinated compounds into the polymer network. The radiopaque beads may be loaded with chemotherapeutic agents and used in methods of embolizing hyperplastic tissue or solid tumors.

This invention concerns imageable, radiopaque embolic beads, which are particularly useful for monitoring embolization procedures. The beads comprise iodine containing compounds which are covalently incorporated into the polymer network of a preformed hydrogel bead. The beads are prepared by activating pre-formed hydrogel beads towards nucleophilic attack and then covalently attaching iodinated compounds into the polymer network. The radiopaque beads may be loaded with chemotherapeutic agents and used in methods of embolizing hyperplastic tissue or solid tumors.