This invention relates to imageable polymers, particularly those comprising poly vinylalcohol and to methods for making them as well as to embolic microspheres comprising the polymers. The microspheres are imageable during embolization procedures and can be loaded with drugs or other therapeutic agents to provide an imageable drug delivery system.

This invention relates to imageable polymers, particularly those comprising poly vinylalcohol and to methods for making them as well as to embolic microspheres comprising the polymers. The microspheres are imageable during embolization procedures and can be loaded with drugs or other therapeutic agents to provide an imageable drug delivery system.

A liquid composition comprising a polymer having pendant groups of the formula I: (I) Wherein X is either a bond or is a linking group having 1 to 8 carbons and optionally 1 to 4 heteroatoms selected from O, N and S; and n is 1 to 4.

##STR00001##

A liquid composition comprising a polymer having pendant groups of the formula I: (I) Wherein X is either a bond or is a linking group having 1 to 8 carbons and optionally 1 to 4 heteroatoms selected from O, N and S; and n is 1 to 4.

##STR00001##

The present invention provides a laminate used in an image display device the laminate including an optically anisotropic layer, a light-absorbing anisotropic layer, a refractive index-adjusting layer, and an oxygen shielding layer in this order, where the light-absorbing anisotropic layer is formed of a composition containing dichroic azo coloring agent and liquid crystalline compounds, where the dichroic azo coloring agent compound is 10% to 30% by mass with respect to a mass of a total solid content of the light-absorbing anisotropic layer, a degree of alignment of the light-absorbing anisotropic layer is 0.92 or higher, the refractive index-adjusting layer is formed of a composition containing a crosslinkable group compound, and has an in-plane average refractive index of 1.55 to 1.70 (550 nm λ), and an angle formed by an in-plane slow axis of the optically anisotropic layer and an absorption axis of the light-absorbing anisotropic layer is 45°±10°.

The present invention provides a laminate used in an image display device the laminate including an optically anisotropic layer, a light-absorbing anisotropic layer, a refractive index-adjusting layer, and an oxygen shielding layer in this order, where the light-absorbing anisotropic layer is formed of a composition containing dichroic azo coloring agent and liquid crystalline compounds, where the dichroic azo coloring agent compound is 10% to 30% by mass with respect to a mass of a total solid content of the light-absorbing anisotropic layer, a degree of alignment of the light-absorbing anisotropic layer is 0.92 or higher, the refractive index-adjusting layer is formed of a composition containing a crosslinkable group compound, and has an in-plane average refractive index of 1.55 to 1.70 (550 nm λ), and an angle formed by an in-plane slow axis of the optically anisotropic layer and an absorption axis of the light-absorbing anisotropic layer is 45°±10°.

A water-resistant gas barrier film is provided with a gas barrier layer at least disposed on a substrate film. The gas barrier layer is made from coating liquid comprising (a) at least one of carboxy group-modified polyvinyl alcohol and partially saponified polyvinyl alcohol, (b) completely saponified polyvinyl alcohol, and (c) polyethyleneimine.

Pellets of ethylene-vinyl alcohol copolymer having lamellar stacks of ethylene-vinyl alcohol copolymer with a long period determined by small-angle X-ray scattering of at least 8.35 nm. The lamellar stacks of ethylene-vinyl alcohol copolymer may have an average crystalline lamellar thickness of at least 6 nm. Additionally or alternatively, the lamellar stacks of ethylene-vinyl alcohol copolymer may have an average amorphous lamellar thickness of at least 2.35 nm. Methods are also provided for producing pellets of ethylene-vinyl alcohol copolymer, such as those having preferable lamellar stack properties, as described above.

Pellets of ethylene-vinyl alcohol copolymer having lamellar stacks of ethylene-vinyl alcohol copolymer with a long period determined by small-angle X-ray scattering of at least 8.35 nm. The lamellar stacks of ethylene-vinyl alcohol copolymer may have an average crystalline lamellar thickness of at least 6 nm. Additionally or alternatively, the lamellar stacks of ethylene-vinyl alcohol copolymer may have an average amorphous lamellar thickness of at least 2.35 nm. Methods are also provided for producing pellets of ethylene-vinyl alcohol copolymer, such as those having preferable lamellar stack properties, as described above.

This invention relates to imageable polymers, particularly those comprising poly vinylalcohol and to methods for making them as well as to embolic microspheres comprising the polymers. The microspheres are imageable during embolization procedures and can be loaded with drugs or other therapeutic agents to provide an imageable drug delivery system.