A method for producing a contact lens having a water contact angle below about 90° involves preparing a molding resin comprising a polyether modified polyolefin; forming the molding resin into a mold; preparing a contact lens composition; filling the contact lens composition into the mold; and polymerizing the contact lens composition to form a contact lens. A method of inducing water contact angle below 90° and improved surface wettability of a contact lens involves cast polymerizing a mixture of monomers in a mold formed from a molding resin containing a polyether modified polyolefin to form a contact lens having a water contact angle of less than about 90°. Single-use molds for contact lens manufacture are also provided.

A method for producing a contact lens having a water contact angle below about 90° involves preparing a molding resin comprising a polyether modified polyolefin; forming the molding resin into a mold; preparing a contact lens composition; filling the contact lens composition into the mold; and polymerizing the contact lens composition to form a contact lens. A method of inducing water contact angle below 90° and improved surface wettability of a contact lens involves cast polymerizing a mixture of monomers in a mold formed from a molding resin containing a polyether modified polyolefin to form a contact lens having a water contact angle of less than about 90°. Single-use molds for contact lens manufacture are also provided.

An object is to provide a fluorine-containing copolymer composition that exhibits long-term stability as well as a fluororesin paint or varnish prepared using the composition.

Provided are: a composition comprising a fluorine-containing copolymer synthesized through copolymerization of 0.001 to 50 mol % of particular ethylenically unsaturated organosilicon compound polymerization units relative to 5 to 85 mol % of fluoroolefin polymerization units by a solution polymerization method, a solvent, and an amine compound; a fluororesin paint or varnish prepared using the composition; and a method of producing the fluorine-containing copolymer composition.

An object is to provide a fluorine-containing copolymer composition that exhibits long-term stability as well as a fluororesin paint or varnish prepared using the composition.

Provided are: a composition comprising a fluorine-containing copolymer synthesized through copolymerization of 0.001 to 50 mol % of particular ethylenically unsaturated organosilicon compound polymerization units relative to 5 to 85 mol % of fluoroolefin polymerization units by a solution polymerization method, a solvent, and an amine compound; a fluororesin paint or varnish prepared using the composition; and a method of producing the fluorine-containing copolymer composition.

There is provided an adhesive capable of improving the visibility and controlling gaps with high accuracy. The adhesive according to the present invention is an adhesive containing a curable component and a gap material, in which the 10% K value of the gap material is 10000 N/mm.sup.2 or less, and the absolute value of the difference between the refractive index of a cured product obtained by curing the curable component at 23° C. for 1 hour and the refractive index of the gap material is 0.1 or less.

There is provided an adhesive capable of improving the visibility and controlling gaps with high accuracy. The adhesive according to the present invention is an adhesive containing a curable component and a gap material, in which the 10% K value of the gap material is 10000 N/mm.sup.2 or less, and the absolute value of the difference between the refractive index of a cured product obtained by curing the curable component at 23° C. for 1 hour and the refractive index of the gap material is 0.1 or less.

A composition contains at least one siloxane having ethylenically unsaturated, radically-polymerizable groups, and at least one hydrocarbon having 2 to 6 ethylenically-unsaturated, radically-polymerizable groups, and can be used as a release coating, said composition allowing a good degree of release behavior from adhesive compounds while at the same time also achieving a high level of adhesion of the coating to the carrier material.

A composition contains at least one siloxane having ethylenically unsaturated, radically-polymerizable groups, and at least one hydrocarbon having 2 to 6 ethylenically-unsaturated, radically-polymerizable groups, and can be used as a release coating, said composition allowing a good degree of release behavior from adhesive compounds while at the same time also achieving a high level of adhesion of the coating to the carrier material.

Provided are an emulsifier exhibiting a high preservation stability and having an excellent emulsifying capability in a wide range of emulsification compositions; and an emulsion composition containing such emulsifier. The emulsifier is comprised of a diblock copolymer whose main chain is comprised of a silicone graft copolymer block [I] and a polar copolymer block [II], wherein one end structure of the main chain is represented by a formula [III], and the other end structure of the main chain is represented by a formula [IV], the formulae [I] to [IV] being expressed as

##STR00001##

wherein R.sup.1 represents a hydrogen atom or methyl group; A represents an organopolysiloxane-containing group; n.sup.1 satisfies 1≤n.sup.1≤50; B represents a polar group-containing monovalent hydrocarbon group, an amino group or a hydroxyl group; n.sup.2 satisfies 1≤n.sup.2≤50; R.sup.6 represents an alkyl group; R.sup.7 independently represents a hydrogen atom or an alkyl group; X is A or B.

Provided are an emulsifier exhibiting a high preservation stability and having an excellent emulsifying capability in a wide range of emulsification compositions; and an emulsion composition containing such emulsifier. The emulsifier is comprised of a diblock copolymer whose main chain is comprised of a silicone graft copolymer block [I] and a polar copolymer block [II], wherein one end structure of the main chain is represented by a formula [III], and the other end structure of the main chain is represented by a formula [IV], the formulae [I] to [IV] being expressed as

##STR00001##

wherein R.sup.1 represents a hydrogen atom or methyl group; A represents an organopolysiloxane-containing group; n.sup.1 satisfies 1≤n.sup.1≤50; B represents a polar group-containing monovalent hydrocarbon group, an amino group or a hydroxyl group; n.sup.2 satisfies 1≤n.sup.2≤50; R.sup.6 represents an alkyl group; R.sup.7 independently represents a hydrogen atom or an alkyl group; X is A or B.