A method of preparing a silicone-acrylate hybrid composition is provided. The method comprises irradiating an acrylate composition in the presence of: (i) a silicone article, and/or (ii) a silicone composition; to polymerize the acrylate composition and give the silicone-acrylate hybrid composition. The acrylate composition comprises an acrylate compound and an initiator.

A method of preparing a silicone-acrylate hybrid composition is provided. The method comprises irradiating an acrylate composition in the presence of: (i) a silicone article, and/or (ii) a silicone composition; to polymerize the acrylate composition and give the silicone-acrylate hybrid composition. The acrylate composition comprises an acrylate compound and an initiator.

Described are silicone hydrogels with high levels of polyamides exhibiting an excellent balance of physical, mechanical, and biological properties. The silicone hydrogels are formed from a reactive monomer mixture comprising: a hydroxylalkyl (meth)acrylate monomer; hydroxyl-containing silicone components; and a polyamide, wherein the polyamide is present in an amount greater than 15 weight percent, based on the total weight of reactive components in the reactive monomer mixture.

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 is a curable composition including the following components: (i) a first alkoxysilane which is unhydrolyzed; (ii) a second alkoxysilane which is 5 to 45 percent hydrolyzed; and (iii) an ethylenically unsaturated monomer. The invention also provides coatings formed from the curable composition and articles coated with the curable composition.

Provided is a curable composition including the following components: (i) a first alkoxysilane which is unhydrolyzed; (ii) a second alkoxysilane which is 5 to 45 percent hydrolyzed; and (iii) an ethylenically unsaturated monomer. The invention also provides coatings formed from the curable composition and articles coated with the curable composition.

A film-forming composition containing a polymer obtained by polymerizing (A) 5 to 80 mass % of a silicone resin having an R.sub.3SiO.sub.1/2 unit, an R.sub.2R′SiO.sub.1/2 unit, and an SiO.sub.2 unit, where R may be the same or different and represents a monovalent hydrocarbon group having 1 to 6 carbon atoms, and R′ represents a —C.sub.3H.sub.6SH group, wherein a total amount of the R.sub.3SiO.sub.1/2 unit, R.sub.2R′SiO.sub.1/2 unit, and SiO.sub.2 unit is 80 mol % or more with respect to all structural units, and a mole ratio expressed by (sum of R.sub.3SiO.sub.1/2 unit and R.sub.2R′SiO.sub.1/2 unit)/(SiO.sub.2 unit) ranges from 0.5 to 1.5 and (B) 20 to 95 mass % of one or more radically polymerizable compounds, wherein component (B) includes (B-1) one or more radically polymerizable monomers having no SiO unit in a structure thereof. This composition is capable of forming a transparent film that is excellent in adhesiveness without exhibiting stickiness and secondary adhesion.

A film-forming composition containing a polymer obtained by polymerizing (A) 5 to 80 mass % of a silicone resin having an R.sub.3SiO.sub.1/2 unit, an R.sub.2R′SiO.sub.1/2 unit, and an SiO.sub.2 unit, where R may be the same or different and represents a monovalent hydrocarbon group having 1 to 6 carbon atoms, and R′ represents a —C.sub.3H.sub.6SH group, wherein a total amount of the R.sub.3SiO.sub.1/2 unit, R.sub.2R′SiO.sub.1/2 unit, and SiO.sub.2 unit is 80 mol % or more with respect to all structural units, and a mole ratio expressed by (sum of R.sub.3SiO.sub.1/2 unit and R.sub.2R′SiO.sub.1/2 unit)/(SiO.sub.2 unit) ranges from 0.5 to 1.5 and (B) 20 to 95 mass % of one or more radically polymerizable compounds, wherein component (B) includes (B-1) one or more radically polymerizable monomers having no SiO unit in a structure thereof. This composition is capable of forming a transparent film that is excellent in adhesiveness without exhibiting stickiness and secondary adhesion.

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.