The present disclosure herein relates to a mold for manufacturing a slab. More particularly, the mold includes a first fabric layer, a first rubber layer disposed on the first fabric layer, a second fabric layer disposed on the first rubber layer, and a second rubber layer disposed on the second fabric layer. Here, the second rubber layer includes a base part and a frame part extending from an edge of the base part. Also, the base part and the frame part are integrated with each other.

A hose extrusion mandrel for manufacturing rubber hoses includes: a solid thermoplastic, elongate core; and a rubber compound outer layer covering a surface of the elongate core. A ratio between a diameter of the core and a thickness of the rubber compound layer may be between 8 and 11.

A method includes subjecting an ophthalmic device mold-forming material to drying conditions in a first inert gas environment for a time period sufficient to substantially dry the ophthalmic device mold-forming material; molding a first ophthalmic device mold part and a second ophthalmic device mold part from the dried ophthalmic device mold-forming material; and subjecting the first ophthalmic device mold part and the second ophthalmic device mold part to a second inert gas environment for a time period sufficient to substantially remove all oxygen in the first ophthalmic device mold part and the second ophthalmic device mold part.

Methods are disclosed for manufacturing a coated contact lens that comprises a polymeric lens body comprising an acid group, a first coating polymer comprising a first amine group ionically bound to the acid group, and a second coating bound to the first coating polymer through covalent linkage between a nitrogen atom of a second amine group on the first coating polymer and an amine-reactive group of the second coating polymer. In some examples the lenses exhibit improved surface properties compared to uncoated lenses, such as reduced adhesion, increased wettability, increased lubricity, and/or increased lipid resistance.

A method of preparing and using a contact lens is disclosed. In one step, a light-absorbing dye solution, comprising a light-absorbing dye disposed in a solution, is dispensed onto a contact lens. In another step, the light-absorbing dye is reacted with the contact lens so that the contact lens permanently contains the light-absorbing dye. The transmission of light of a certain wavelength through the contact lens is reduced due to the reacted light-absorbing dye permanently contained within the contact lens.

A method of making a saddle having a shell and a padding involves arranging the shell in thermoplastic polymer inside a mould for injection moulding having a die and a punch, the shell having a support surface, which in use faces the padding, and a supporting surface coupled to an inner wall of the punch or of the die, the support surface forming a wall of the moulding cavity; closing the mould; and making the padding by injection moulding a thermoplastic polymer over the shell, between the support surface and the mould.

The present invention relates to a siloxane monomer used in the production of a silicone hydrogel lens, a composition for the preparation of a lens containing the same, and a silicone hydrogel lens prepared from the same, wherein the silicone hydrogel lens according to the present invention has a feature of easy release from a component of a mold.

The present invention relates to a microneedle, to a mould for producing same, and to a production method for same. More specifically, the present invention concerns a microneedle for causing a skin-beautifying substance or drug to be absorbed via the skin, to a plastic mould for producing same, and to a production method for same.

A method of preparing and using a contact lens is disclosed. In one step, a light-absorbing dye solution, comprising a light-absorbing dye disposed in a solution, is dispensed onto a contact lens. In another step, the light-absorbing dye is reacted with the contact lens so that the contact lens permanently contains the light-absorbing dye. The transmission of light of a certain wavelength through the contact lens is reduced due to the reacted light-absorbing dye permanently contained within the contact lens.

Methods and apparatus for positioning a structure on a polymer layer are described. A method may involve forming a first polymer layer. The method may further involve positioning, by an apparatus, a structure on the first polymer layer, where the apparatus comprises a rod having a first end that supports the structure as the structure is being positioned and a plunger located around the first end of the rod that presses the structure onto the first polymer layer as the structure is being positioned. And the method may involve forming a second polymer layer over the first polymer layer and the structure, where the first polymer layer defines a first side of a body-mountable device and the second polymer layer defines a second side of the body-mountable device opposite the first side.