An object of the present invention is to provide a dispersion assistant that, when used for suspension polymerization of a vinyl-based compound, achieves stable production of a good polymer (vinyl-based resin) without much scale adhesion on the polymerization tank even in the cases where used in a large amount. Provided is a dispersion assistant for suspension polymerization, which comprises a polyvinyl alcohol-based polymer (A) having an acetal group (a) having an olefinic unsaturated double bond, the polymer having a saponification degree of 60 mol% or less.

An object of the present invention is to provide a dispersion assistant that, when used for suspension polymerization of a vinyl-based compound, achieves stable production of a good polymer (vinyl-based resin) without much scale adhesion on the polymerization tank even in the cases where used in a large amount. Provided is a dispersion assistant for suspension polymerization, which comprises a polyvinyl alcohol-based polymer (A) having an acetal group (a) having an olefinic unsaturated double bond, the polymer having a saponification degree of 60 mol% or less.

An object of the present invention is to provide a dispersion assistant that, when used for suspension polymerization of a vinyl-based compound, achieves stable production of a good polymer (vinyl-based resin) without much scale adhesion on the polymerization tank even in the cases where used in a large amount. Provided is a dispersion assistant for suspension polymerization, which comprises a polyvinyl alcohol-based polymer (A) having an acetal group (a) having an olefinic unsaturated double bond, the polymer having a saponification degree of 60 mol% or less.

Resin compositions, layers, and interlayers comprising a poly(vinyl acetal) resin that includes residues of an aldehyde other than n-butyraldehyde are provided. Such compositions, layers, and interlayers can exhibit enhanced or optimized properties and lower VOC levels as compared to those formulated with comparable poly(vinyl n-butyral) resins.

Resin compositions, layers, and interlayers comprising a poly(vinyl acetal) resin that includes residues of an aldehyde other than n-butyraldehyde are provided. Such compositions, layers, and interlayers can exhibit enhanced or optimized properties and lower VOC levels as compared to those formulated with comparable poly(vinyl n-butyral) resins.

The present invention aims to provide a modified polyvinyl acetal resin composition that is excellent in storage stability, has high strength and excellent adhesiveness, and is capable of reducing occurrence of warping or peeling when used for bonding different materials. The present invention relates to a modified polyvinyl acetal resin composition containing: a modified polyvinyl acetal resin having a constitutional unit with an imine structure, and an epoxy resin.

The present invention aims to provide a modified polyvinyl acetal resin composition that is excellent in storage stability, has high strength and excellent adhesiveness, and is capable of reducing occurrence of warping or peeling when used for bonding different materials. The present invention relates to a modified polyvinyl acetal resin composition containing: a modified polyvinyl acetal resin having a constitutional unit with an imine structure, and an epoxy resin.

Described herein are polymers, polymeric gels, or a composition thereof, for drug delivery. The polymers, which include boronic-acid containing moieties (e.g., ##STR00001##
and polyol-containing moieties (e.g., ##STR00002##
are prepared by free-radical polymerization and can self-assemble into polymeric gels such as hydrogels. Also provided are methods or preparing the polymers, kits involving the polymers and/or polymeric gels or a composition thereof, for use as materials or delivery applications of an agent to a subject.

Described herein are polymers, polymeric gels, or a composition thereof, for drug delivery. The polymers, which include boronic-acid containing moieties (e.g., ##STR00001##
and polyol-containing moieties (e.g., ##STR00002##
are prepared by free-radical polymerization and can self-assemble into polymeric gels such as hydrogels. Also provided are methods or preparing the polymers, kits involving the polymers and/or polymeric gels or a composition thereof, for use as materials or delivery applications of an agent to a subject.

Described herein are polymers, polymeric gels, or a composition thereof, for drug delivery. The polymers, which include boronic-acid containing moieties (e.g., ##STR00001##
and polyol-containing moieties (e.g., ##STR00002##
are prepared by free-radical polymerization and can self-assemble into polymeric gels such as hydrogels. Also provided are methods or preparing the polymers, kits involving the polymers and/or polymeric gels or a composition thereof, for use as materials or delivery applications of an agent to a subject.