The present invention relates to silicone hydrogels exhibiting desired combinations of physical and mechanical properties, formed from a reactive monomer mixture comprising at least one N-alkyl methacrylamide, and at least one silicone-containing component. These silicone hydrogels may also contain hydrophilic components, crosslinking agents and toughening monomers. These silicone hydrogels are useful in preparing biomedical devices, ophthalmic lenses, and contact lenses.

The present invention relates to silicone hydrogels exhibiting desired combinations of physical and mechanical properties, formed from a reactive monomer mixture comprising at least one N-alkyl methacrylamide, and at least one silicone-containing component. These silicone hydrogels may also contain hydrophilic components, crosslinking agents and toughening monomers. These silicone hydrogels are useful in preparing biomedical devices, ophthalmic lenses, and contact lenses.

Provided are polymer compositions made by a process comprising: (a) providing a first reactive composition containing: (i) a polymerization initiator that is capable, upon a first activation, of forming two or more free radical groups, at least one of which is further activatable by subsequent activation; (ii) one or more ethylenically unsaturated compounds; and (iii) a crosslinker; (b) subjecting the first reactive composition to a first activation step such that the first reactive composition polymerizes therein to form a crosslinked substrate network containing a covalently bound activatable free radical initiator; (c) contacting the crosslinked substrate network with a grafting composition containing one or more ethylenically unsaturated compounds, wherein the contacting is conducted under conditions such that the grafting composition penetrates into the crosslinked substrate network; and (d) activating the covalently bound activatable free radical initiator at one or more selective regions of the crosslinked substrate network such that the grafting composition polymerizes with the crosslinked substrate network at the selective regions.

Provided are polymer compositions made by a process comprising: (a) providing a first reactive composition containing: (i) a polymerization initiator that is capable, upon a first activation, of forming two or more free radical groups, at least one of which is further activatable by subsequent activation; (ii) one or more ethylenically unsaturated compounds; and (iii) a crosslinker; (b) subjecting the first reactive composition to a first activation step such that the first reactive composition polymerizes therein to form a crosslinked substrate network containing a covalently bound activatable free radical initiator; (c) contacting the crosslinked substrate network with a grafting composition containing one or more ethylenically unsaturated compounds, wherein the contacting is conducted under conditions such that the grafting composition penetrates into the crosslinked substrate network; and (d) activating the covalently bound activatable free radical initiator at one or more selective regions of the crosslinked substrate network such that the grafting composition polymerizes with the crosslinked substrate network at the selective regions.

An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. An adhesive composition includes a (meth)acrylate-based resin, and a polymer having a melting temperature (Tm) of 60° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and one type of monomer.

An adhesive composition, an adhesive film comprising the same, a backplate film comprising the adhesive film, and a plastic organic light emitting display comprising the adhesive film are provided. An adhesive composition includes a (meth)acrylate-based resin, and a polymer having a melting temperature (Tm) of 60° C. or higher, wherein the polymer is a copolymer of a monofunctional polysiloxane and one type of monomer.

The invention is to provide an anti-reflective film. The anti-reflective film comprises a substrate, a hard coating layer disposed on the substrate and a low refractive layer disposed on the hard coating layer. The low refractive layer comprises a (meth)acrylate resin, hollow silica nanoparticles, an initiator and a leveling agent. Wherein the leveling agent comprises a (meth)acrylic-modified organosilicone compound having a perfluoropolyether group. The reflectivity of the anti-reflective film of the present invention is in the range of 1.2% to 1.4%.

The purpose of the present invention is to provide a polysiloxane monomer which gives an ophthalmic device with excellent wettability and a method for preparing the same. The present invention provides a compound represented by the following formula (1):

##STR00001##

wherein R.sup.1 is a hydrogen atom or a methyl group, L.sup.1 is a single bond or a divalent hydrocarbon group which has 1 to 6 carbon atoms and may have at least one selected from an ether bond, an ester bond, and a urethane bond, Z is a monovalent organic group which has 1 to 10 carbon atoms and has a quaternary ammonium group or an amphoteric ion group, A is a linear or branched organo(poly)siloxanyl group having 1 to 100 siloxane units, L.sup.2 is a linear, branched or cyclic, divalent or trivalent hydrocarbon group which has 2 to 10 carbon atoms and may have an ether bond, and L.sup.3 is a divalent or trivalent hydrocarbon group having one carbon atom, provided that and when L.sup.3 is trivalent, then L.sup.2 is also trivalent, and L.sup.3 and L.sup.2 together form a ring.

The purpose of the present invention is to provide a polysiloxane monomer which gives an ophthalmic device with excellent wettability and a method for preparing the same. The present invention provides a compound represented by the following formula (1):

##STR00001##

wherein R.sup.1 is a hydrogen atom or a methyl group, L.sup.1 is a single bond or a divalent hydrocarbon group which has 1 to 6 carbon atoms and may have at least one selected from an ether bond, an ester bond, and a urethane bond, Z is a monovalent organic group which has 1 to 10 carbon atoms and has a quaternary ammonium group or an amphoteric ion group, A is a linear or branched organo(poly)siloxanyl group having 1 to 100 siloxane units, L.sup.2 is a linear, branched or cyclic, divalent or trivalent hydrocarbon group which has 2 to 10 carbon atoms and may have an ether bond, and L.sup.3 is a divalent or trivalent hydrocarbon group having one carbon atom, provided that and when L.sup.3 is trivalent, then L.sup.2 is also trivalent, and L.sup.3 and L.sup.2 together form a ring.

The present disclosure provides dual curable compositions having both radiation curing and shadow curing mechanisms. The compositions comprise silicon-organic hybrid polymers having rapid shadow curing by a 2 part isocyanate-polyol reaction and/or a 2 part cyclic carbonate-amine reaction. The compositions can be used as adhesives or coatings. The use of the compositions according to the disclosure is particularly preferred for use in electro-optical components especially for automobile display adhesives applications.