A process for producing an episulfide compound for an optical material of the present invention includes a step of chlorinating glycerin to obtain dichloropropanol; a step of epoxidizing the dichloropropanol to obtain epichlorohydrin; a step of reacting the epichlorohydrin with a sulfating agent to obtain a bis(chlorohydrin) (di)sulfide compound thought a thiol compound; a step of epoxidizing the bis(chlorohydrin) (di)sulfide compound under basic conditions to obtain an epoxy compound; and a step of reacting the epoxy compound with a sulfating agent to obtain an episulfide compound represented by following General Formula (1): ##STR00001## wherein, in the formula, n represents 0 or 1.

A diaphragm having chemical resistance is disclosed. The diaphragm includes a membrane portion and a connection portion which enables connection of the membrane portion to another member. The membrane portion is formed of a first material having chemical resistance. The connection portion is formed of a second material whose main material is the same as that of the first material. The membrane portion and the connection portion are directly bonded together.

An electronic device chassis is manufactured with a multi-step molding process. The process includes at least two separate injection molding steps. During the first step, an electronic component is placed in a first mold, and a first material is injected into the first mold to create a first chassis that surrounds part of the electronic component. In the second step, the first chassis is placed in a second mold, and a second material is injected into the second mold to create a second chassis that surrounds part of the first chassis. The second step can be performed at a higher pressure than the first step, which can produce a smoother exterior surface. Furthermore, the first chassis shields the electronic component from the higher pressure of the second step, which reduces the likelihood of damage to the electronic component.

An airless tire has a cylindrical tread ring 2 having a ground-contacting surface 21, a hub disposed on the radially inside of the tread ring 2 and fixed to an wheel shaft, and spokes connecting between the tread ring 2 and the hub. The tread ring 2 has a side wall 22 continued from the ground-contacting surface 21 and forming a ring side surface. The side wall 22 has a supporting portion 23 which, when the tread ring 2 alone is horizontally laid on a horizontal surface H, contacts with a horizontal surface H and supports the tread ring 2 so that a ring axis A2 is oriented in a direction perpendicular to the horizontal surface H.

An encapsulated glass assembly includes a plastic frame having at least three sides and corners, with the frame having a channel extending within its outer frame surface that includes a lower wall portion connected to a side wall portion. The outer frame surface further includes at least one upper wall portion extending from the side wall portion and extending along at least one side of the frame, each one of the at least one upper wall portions further defining a portion of the channel as a C-shaped channel. A glass panel coupled to the frame is retained within the C-shaped channel along at least one side of the frame such that the edge of the panel is adjacent to the side wall portion. An encapsulant having a Shore hardness less than the frame is bonded onto the panel and onto the frame to secure the panel to the frame.

A core element is provided, having the shape of a block with a first surface, a second surface situated opposite the first surface, mutually facing longitudinal side faces, and mutually facing transverse side faces. The first surface is provided with the first groove that is a continuous groove which extends parallel to the longitudinal side faces. The longitudinal side faces are provided with the side wall grooves, the side wall grooves being continuous side wall grooves which extend between the first surface and the second surface and are separated from the first groove in the first surface.

Epoxy curatives and two-part compositions comprising epoxy curative and epoxy resin parts are provided as well as methods of their use in liquid shim applications. Epoxy curatives comprise at least one cycloaliphatic polyamine curative and at least one second curative selected from a) an aliphatic polyamidoamine and b) an adduct of an excess of an unbranched polyetherdiamine with an epoxy resin.

An article of footwear includes a sole having a lower surface, and a reactive element disposed on the lower surface of the sole. The reactive element has an exposed surface, and the reactive element is configured to transition the exposed surface between a first state and a second state in response to a compression force applied to the reactive element by an external ground surface in a user activity, to prevent accumulation of ground surface material, such as mud, dirt, clay, sand, slush, etc., compacting on the sole of the article of footwear in the user activity. The reactive element may include an elastomeric dome shaped popper that compresses flat in response to a compression force and then pops back to a non-compressed state in response to release of the compression force.

An intravenous delivery system may have a liquid source containing a liquid, tubing, and an anti-run-dry membrane positioned such that the liquid, flowing form the liquid source to the tubing, passes through the anti-run-dry membrane. The anti-run-dry membrane may be positioned within an exterior wall of a drip unit, and may be secured to a seat of the exterior wall by an attachment component. The attachment component may have various forms, such as a secondary exterior wall that cooperates with the exterior wall to define a drip chamber, a washer positioned such that the anti-run-dry membrane is between the washer and the seat, and an adhesive ring formed of a pressure sensitive adhesive and secured to the anti-run-dry membrane and the seat via compression. Interference features may protrude inward from the exterior wall or outward from the anti-run-dry membrane to help keep the anti-run-dry membrane in place.

A display device includes a window member and a display module coupled to the window member. The window member includes a first resin layer and a second resin layer. The first resin layer is on the display module and has a first elongation, a first thickness, and a first hardness. The second resin layer is on the display module and the first resin layer and has a second elongation smaller than the first elongation, a second thickness greater than the first thickness, and a second hardness greater than the first hardness.