Described is a silicone hydrogel contact lens having non-uniform morphology. The contact lens may be made from a reactive mixture comprising: a silicone-containing component; a hydrophilic component; a non-reactive polymeric internal wetting agent; and a polymerization initiator, the contact lens having an oxygen permeability of at least about 60 barrers, and wherein the molar ratio in the lens of the polymeric non-reactive internal wetting agent to silicone, without a surface treatment, is greater in the lens's surface than in its bulk.

A hard coating film according to an embodiment includes a substrate layer, a first hard coating layer formed on the substrate layer and satisfying a predetermined elastic recovery rate, and a second hard coating layer formed on the first hard coating layer and satisfying a predetermined water contact angle. The hard coating film according to embodiments may provide improved press resistance, scratch resistance, and flexibility.

Described is a silicone hydrogel contact lens having non-uniform morphology. The contact lens may be made from a reactive mixture comprising: a silicone-containing component; a hydrophilic component; a non-reactive polymeric internal wetting agent; and a polymerization initiator, the contact lens having an oxygen permeability of at least about 60 barrers, and wherein the molar ratio in the lens of the polymeric non-reactive internal wetting agent to silicone, without a surface treatment, is greater in the lens's surface than in its bulk.

There is provided a composition for forming a hard coat layer which has high slippage and is excellent in water/oil repellency and also has antifouling properties such as fingerprint resistance and dirt wiping-off properties, and which is curable through ultraviolet irradiation in a nitrogen atmosphere or an air atmosphere that is generally used. A silicon-containing highly branched polymer obtained by polymerization of a monomer A having two or more radically polymerizable double bonds in a molecule and a monomer B having a polysiloxane chain and at least one radically polymerizable double bond in a molecule in the presence of a polymerization initiator D in an amount of 5 to 200% by mole relative to the number of moles of the monomer A; a curable composition including the highly branched polymer; a cured film obtained from the composition; and a hard coat film obtained by use of the composition.

An adhesive composition for oil bleeding silicone rubber comprising any of: (A) an alcohol-based organic solvent solution adding 45 to 120 parts by weight of organometallic compound and 2 to 10 parts by weight of water, based on 100 parts by weight of vinyltrialkoxysilane, (B) a solution in which 5 parts by weight or less, preferably 1 to 5 parts by weight, of 3-aminopropyltrialkoxysilane is added to the above alcohol-based organic solvent solution (A), or (C) a solution in which uncrosslinked silicone rubber dissolved beforehand in an organic solvent is added to the above alcohol-based organic solvent solution (A) or (B) in which the amount of the organometallic compound is changed to 5 to 20 parts by weight, at a ratio of 0.1 to 5 wt. %, based on the total solid matters of vinyltrialkoxysilane and the organometallic compound. The adhesive composition has excellent adhesion to various substrates, including metals.

A biodegradable resin particle, includes: a base particle containing a biodegradable resin; a first layer on a surface of the base particle, the first layer containing at least one cationic resin of a polyalkyleneimine, a polyallylamine and a polyvinylamine; and a second layer on the first layer, the second layer containing an anionic or nonionic hydrophobic compound.

Hollow particles having a shell including at least one layer, wherein the at least one layer contains a vinyl-based resin, and contains a phosphorus atom and/or a sulfur atom.

A packing material for surfactant-containing products includes a solid surface layer (3) that contains a non-aromatic silicone type polymer and a silicone oil layer (1) held on the solid surface layer (3), wherein the non-aromatic silicone type polymer is at least the one kind of polymer selected from a silicone resin, a silicone-modified olefin resin, silicone-modified polysaccharides and a silicone-modified acrylic resin.

Described is a silicone hydrogel contact lens having non-uniform morphology. The contact lens may be made from a reactive mixture comprising: a silicone-containing component; a hydrophilic component; a non-reactive polymeric internal wetting agent; and a polymerization initiator, the contact lens having an oxygen permeability of at least about 60 barrers, and wherein the molar ratio in the lens of the polymeric non-reactive internal wetting agent to silicone, without a surface treatment, is greater in the lens's surface than in its bulk.

Hollow particles having a shell including at least one layer, wherein the at least one layer contains a vinyl-based resin, and contains a phosphorus atom and/or a sulfur atom.